Homesteading Feed

How to Build a Squash Tunnel out of Bamboo - for Almost Nothing!

Arch_Anthony1

By Anthony Valterra

My father is a very handy man. He's the type of guy who sees a brick patio and thinks, "I could do that." And then he figures out how to do it. And actually does it. And it looks awesome. As his son, it is both heartening to see what can be done and discouraging when you see how often your attempts at doing something awesome falls short. But as my grandfather used to say, "It's good enuf fer who it's fer." It took me years to translate that from his Oklahoma twang to my more prosaic American standard into, "It is good enough for whom it is for." I always liked Grandpa's attitude towards life.

So, it is with this familial background that I announced with a casual and cavalier attitude that I would build a squash tunnel for the Dragon Flower Farm. I had no idea how. But we have the Internet, and I undertook some research. These days, however, it seems like there is nothing you can't buy pre-made. 

8596276_TitanSquashTunnel_art_titan-squash-tunnel-trellis-zucchini-butternut-acorn

This one is available from www.gardeners.com. No, we don't have any kind of arrangement with them. I'm just offering this as an example of a squash arch that's pre-made.

But with a limited budget, and with a DIY attitude, we decided to forego purchasing in favor of building. Most people build squash tunnels from things like cattle panels.

2016-03-29-17.34.53resize

An example from another site - also no affiliation.

The cattle panel versions seem to be very functional, and we were leaning that direction for some time. In fact, we may have used that method if the shelter-in-place quarantine had not occurred. We were about to pull the trigger and go to our local big box garden/home supply store, buy some cattle panels, and go for it. But once the virus hit, we avoided going out to large, crowded stores, and the whole thing became a bit trickier and more DIY. One solution is the rustic, "let's-tie-some-sticks-together" look.

Thumb_IMG_2405_1024

This example comes from a site called Domisse Landscapes. (Nope, no baksheesh on this link either, not that we aren't open to that if someone wants to support this blog endeavor.)

That struck me as just a bit too rustic. I was hoping for something in the middle. Lisa and I were out for a walk, and we passed by one of our neighbors, who has a large grove of bamboo growing on the side of his property. Bamboo grows really fast. So, he has to cut it back a couple of times a year. He just has the city come and pick it up as yard waste. We'd already snagged a few of his excess bamboo canes previously, using them as tree stakes. And then the light went on - bamboo is great building material! He has all kinds of lengths and thicknesses. And since the shutdown, yard waste has not been picked up (with reduced staff and more garbage and recycling material being produced by everyone staying home, the city's workers were overwhelmed, and so they temporarily suspended pick-up). Well, talk about your win-win. He was thrilled to have us haul away all of his bamboo, and we got free building material.

Arch_Bamboo
You need close to 30 canes to do this right. Any leftovers can be repurposed as garden stakes.

Now, all I had to do was figure out how to build a squash tunnel using bamboo. No biggie, right? Here is what I came up with. Will it work? I guess we will all find out by the fall. It will either collapse from the weight of the plants on it, be blown away in a storm, or be standing and provide some lovely images. Stay tuned to find out which scenario plays out.

First things first - what tools and supplies did I need? Well, other than the bamboo itself, this is literally all I needed.

IMG_1171
Saw, tape measure, twine, hand cutters, and a rubber mallet.

So the arch, all total, can be had for the cost of twine, provided you get the bamboo for free and already have these tools. Now here's how I built it.

I laid out two bamboo rods that were going to be my base supports to get an idea on the length of the tunnel.

IMG_1154

I then cut 6 pieces of bamboo into one-foot lengths, with a sharp 45-degree cut.

IMG_1149

These were going to become my stakes. They were surprisingly easy to drive into the ground. Using my hand and bodyweight, I could push them 6 inches into the ground and then use the rubber mallet to drive them down until about 2-3 inches stuck up above the ground. I then lashed the base supports to the stakes with the twine.

IMG_1156

Then I cut the side vertical supports the same way I cut the stakes - with a 45-degree end. This allowed me to drive them into the ground using just my bodyweight next to the stakes. 

IMG_1159
Overhead view - the sharp end will be driven into the ground next to the stake.

Once the vertical supports were in place, they were strengthened with horizontal supports on each side, which was lashed to the standing vertical support.

IMG_1164

Here you can see the vertical support driven into the ground and tied to the stake at the bottom and the horizontal support lashed to higher up.

All that was left to do was to bend the vertical support bamboo to form the arch and tie them together. If there is a place where this falls apart, it is here. I wish I had started this project as soon as I had the bamboo when it was still green and very supple. But I waited a few days and the bamboo had begun to dry out and become more brittle. It still bent, but I think it might be more likely to break.

Arch_Full1

The full arch. I put another horizontal brace at the very top where the two sides of the arch meet for more support. We chose to leave some of the leaves on because we thought they looked nice. But as the bamboo dries, they may just fall off or be stolen by birds for their nests. We'll see. The real question is... will it support our squash? That is unknown. It also might be that the horizontal bracing is too high off the ground for the squash to reach, and there may just need to be more bracing on the sides for the squash to grow on. But that will be an easy addition if needed.

IMG_1172

Lisa inside the tunnel. This clearly shows the first horizontal brace might be too high up. It is about thigh-high on Lisa. We may need to put another one below it about halfway to the ground. And perhaps one above it as well. Stay tuned!

YOU MIGHT ALSO LIKE

Chaos Is a Garden

Inspiration Garden: My Father's... Grandmother's Garden...?

Easy DIY Bird Baths for Your Stay-at-Home Pleasure


What's Happening Now on the Farm, Quarantine Edition

Robin's egg
At first I thought one of the neighbor kids tossed a plastic Easter egg into our yard, but it turned out to be a real robin's egg.

By Lisa Brunette

It's been a strange spring in a lot of ways. The season has seemed to last a lot longer than usual - our utility bill was cut in half over the last month because we've needed neither the furnace nor the A/C. Spring here in Missouri can sometimes go by in a blip so that you barely have any windows-open days before it's time to shut the place up and turn on the A/C. So a long spring is a welcome thing. But up until this week, it's been dry, unlike last year's mushroom-encouraging daily deluges, so we've been grateful for the rain barrels to water the direct-sow seeds going in now.

FrogPond
This is as close as we get to a pond at Dragon Flower Farm, unless you count our rain garden ditches.

Of course the strangest aspects have been the fire that happened one building away and the pandemic, as if one apocalypse at a time isn't enough. We were lucky with that fire. And because Anthony and I run the game-writing business out of our home, with clients all over the world who collaborate with us remotely and mostly online anyway, not much has changed for us work-wise, despite the strict quarantines. We miss the chance to meet with our growing team in person, but otherwise, we've been lucky that the pandemic hasn't affected our livelihood too much.

What it has affected - besides the fact that we can't find toilet paper anywhere - is our social life, which is now limited to each other and the cat. We love the time to just 'be' together, for sure, and we're both homebodies, so this suits us fine. Without the opportunity to see extended family and go out with friends, we've focused on activities here at Cat in the Flock and Dragon Flower Farm. Here's a run-down.

And the Winner Is...

Anne Harrington of Seattle, Washington, won our Bringing Nature Home giveaway. Here she is posing with her signed copy of Doug Tallamy's book. Congratulations, Anne!

Winner
Love that she had this pic taken in front of those gorgeous windows, with a garden beyond.

Water, Water Every Pear

The very day the fire broke out, we'd spent the whole of the day working on the farm. Our main task was to bury a drainage pipe and dig out a larger ditch for the outflow. The pipe used to extend from the bottom of a gutter, but now it's the rain barrel overflow. 

Drain pipe
It's so nice to hide that pipe after a couple years of looking out the back window and seeing... a big pipe in the yard.

You might remember the 'blueberry moat' I mentioned in a previous post. We're experimenting with some permaculture methods for retaining water in the soil (water catchment). So the above drain plus the one installed between our house and the flat next door both now let out into a ditch we dug and filled with water-loving native plants (buttonbush and rose mallow). Here's the proof that water pools in the ditch during rainfall.

So... we don't know if this all works or not, but some smart permaculturists have made compelling arguments, and why not try it out? We'll let you know if we think it's successful. Have any of you opted for something like this? Let us know in the comments below.

The buttonbush and rose mallow were seedlings from the Missouri Department of Conservation, part of a 24-count order I put in last fall. Each seedling was only USD $1 a piece, a super steal. Many of these native plants are edible, too, such as the blackberries and wild plum. Here's the bucket full of seedlings the day they all went in.

Spring planting
All thanks to our local native plant org, Wild Ones, for sponsoring a group purchase from MDC, which only sells in bulk quantities.

So Mulch to Consider

We're closing in on a major achievement: The entire back 40 has almost been completely covered in sheet mulch. There's only this one strip in the southernmost corner still to do.

Back strip mulch
By the way, yes, that is a bat house up on the telephone pole.

We actually ran out of the mulch from St. Louis Composting but were able to get free leaves from our neighbors instead. They take longer to break down but seem to be working very well otherwise. Stay tuned...

Arch You Curious?

Building bamboo arch
Hottie.

We recently spent a day constructing something out of bamboo we got for free from a neighbor. Originally we'd planned to make this out of cattle panel, but then I realized bamboo would work just fine. Anthony will elaborate on his brilliant design-and-build project in an upcoming post.

A more permanent structure also went in recently, and that's our new pergola. It came in pieces as a kit I ordered online, and Anthony and I quickly realized we possessed neither the tools nor the talent to do this ourselves. Fortunately my brother Chris stepped up with both things and saved our butts.

Pergola
If it weren't for my brother Chris, this would still be a bunch of parts scattered across the yard.

Can't Leaf It Alone

Structures aren't the only things popping up here at the farm. A great many plants have poked up out of the ground, and some of the seedlings that looked like mere sticks all winter are leafing out. Here's the elderberry bush, an edible native plant.

Elderberry
Elderberries grow in abundance in Missouri. I've seen them near the Meramec River, with the paw paws.

We now have three native persimmons, which in my opinion constitutes a grove. One is a grafted male/female tree from Stark Bros., another is an MDC seedling, and the one pictured here is from Forest ReLeaf, another excellent source of native plants. The persimmons should pollinate each other, and in some number of years give us delicious fruit, much better than the Asian varieties in the grocery store. 

Persimmon in spring
We can't wait to eat persimmons from our own trees!

Last fall we put in a tulip tree, or tulip poplar, and at the time I didn't even realize I'd planted a tulip tree in a bed of tulips! It's growing to beat the band already. In the below photo, you can see its signature leaf shape (alternate, pinnately veined) backed by tulips in bloom. Liriodendron tulipifera is one of the tallest of the native trees, capable of reaching a height of nearly 200 feet. Ours is sited in the front yard, clear of any telephone poles or other obstacles.

Note one of the reasons I chose the tulip tree is because I watched my own father kill one when I was in high school. He was afraid it would fall on the house, which seems paranoid and unlikely in retrospect, or maybe that was just his excuse. He had the tree cut down, and then he spent the next few months destroying the stump by burning trash in it. Yeah, he was that guy. So planting a tulip tree is my way of balancing against that misguided act.

Tulip tree in the tulips
Such a pretty leaf.

Another tree addition is this beautiful shumard oak, Quercus shumardii, which could reach a height of 100 feet and will eventually give us acorns. Oaks are the superstars of the tree world, as they serve the needs of the largest number of native insects. So many pollinators and other wildlife depend on oaks for their survival that if you had to pick just one native plant to add to your yard, let it be an oak tree.

Shumard oak
Love how the leaves appear red when they emerge in the spring and turn red again in autumn before they fall.
Shumard oak2
Such a beautiful, beneficial tree, supporting a great number of wildlife and pollinators.

Moving from tall and stately to small and serene, I give you the sensitive fern frond, unfurling. This native freebie grows in our shadiest spots at Dragon Flower Farm.

Sensitive fern frond
Love. Those. Curls.

Your Herbal Hookup

I want to alert you to the exciting news that certified herbalist Amanda Jokerst has opened her online store, where you can purchase Forest & Meadow herbal products and other items mentioned in this blog post on healing with herbs. We share this news with you as independent fans of Forest & Meadow. We don't receive anything in return for this plug. That goes for all the other businesses and non-profits we're always mentioning on this blog as well. This is a labor of love, folks! Our only revenue source would be the ads you see in the margins, and those haven't yielded any funding (yet?). Feel free to click on them to see if that helps!

Herbs1
Just a small sampling of the amazing products available for the first time online.

The Last Page

I reached a personal milestone in our Dragon Flower Farm work when I recently filled the very last page in the gardening journal that I started two years ago, when the whole process began. Fittingly, there was just enough room to tape in the empty packet from a bunch of comfrey seeds, a permaculture powerhouse plant.

Last page

Thanks again for tuning in. Anthony and I hope your to-do list is short and your friends list long. Stay safe out there, my peeps!

YOU MIGHT ALSO LIKE

Mulch Ado About 'Nothing' - How to Convert Your Lawn in 5 Steps

A Disturbing Fence Reveal!

The First Signs of Spring - and a New To-Do List - at Dragon Flower Farm

How to Support Your Immune System with Herbs


Chaos Is a Garden

IMG_1111

Peonies on a floor of wild violets seen through a thicket of wild garlic.

By Anthony Valterra

Chaos isn't a pit.
Chaos is a ladder.

- Little Finger, Game of Thrones

...the idea that paradise is a walled garden is an echo back to the chaos and order idea… Walls, culture, garden, nature… The proper human habitat is a properly tended garden...

- Jordan Peterson

As we work on the Dragon Flower Farm, we are also developing our philosophy around what we are doing, and why. At this point (and it will likely change) I would say it is a philosophy of the mean - the middle way, if you will. One aspect of that philosophy is the role of chaos. In Jungian thought, the forest represents the primeval, the chaotic, nature red in tooth and claw. The home represents order, civilization, humanity's dominion. The garden is the place where the two intersect. It is ordered, but it is still influenced by the power that resides outside of its walls. 

Generally speaking, our culture tries to push that chaotic force as far away from ourselves as possible. We use chemical pesticides to kill insects we don't want, we erect barriers to keep out animals we label pests, and we root up plants we call weeds. That is one extreme. On the other side of the garden wall, we have people who are advocating never weeding anything, letting everything grow as it will, and the only intervention being the introduction of plants that are desired. We fall somewhere in the middle.

DFF (Dragon Flower Farm) is trying to ride the edge of order and chaos. We believe that it is possible to have intention in planting, engineering, and maintaining your garden, while still understanding that you are not really in charge. Nature will surprise you with volunteers, odd combinations of plants, and even insect populations that you did not expect. You can pour huge amounts of energy and resources attempting to fight against nature, or you can have a little humility and journey with her. Maybe you will even see some beauty that you could not have planned.

IMG_1110

Daffodils growing up through sedum - completely unplanned.

We have an intent for our space. We are trying to grow a significant portion of our own food. Ironically, we began this project way before COVID-19. But the pandemic has sharpened the seriousness of this goal. We are also attempting to support our native flora and fauna. Pollinators are particularly important, and growing native plants supports those insects, which supports our goal of growing our own food. Finally, we are trying to be good environmental stewards of our space. We avoid the use of chemicals, fertilizers, and pesticides. But in all of these endeavors, we do not hold ourselves up as pristine. We do not see ourselves living only on the food grown on our land, we have non-native plants in the yard, and we have used outside inputs such as mulch from another source. 

IMG_1139

A sycamore volunteer plant - maybe the act of a squirrel, or a bird, or maybe it drifted in on the wind. 

Our culture tends to favor order over chaos in the natural world. We want our plants and animals to conform to our needs and wants. To a traditional gardener, our space would probably look chaotic (sorry, Dad!). On the other hand, we fly in the face of many non-traditional philosophies. We are more than willing to uproot winter creeper, tree of heaven, and bush honeysuckle. This makes the native plant people happy but gets us a frown from some permaculture purists. However, we are OK with some non-native volunteers, which reverses the praise/frown equation just mentioned.

IMG_1141_1143sm

One pod is local praying mantis; the other is a non-native, introduced mantis species; both are welcome at DFF.

How do we decide? We're guessing. But we know that we are not really in charge. Nature will abide. We can only do our best in the short time we are here and hope to pass on something to the next generation - a bit of wisdom, some life lessons, and maybe a small patch of healthy land.

IMG_1146

How about this little bundle of chaos? Native? Invasive? Food? Stay tuned to find out!


The First Signs of Spring - and a New To-Do List - at Dragon Flower Farm

First Daffodil 2020
Our first daffodil of the season pops up in a shady corner near the HVAC unit.

By Lisa Brunette

The flora is waking up here at Dragon Flower Farm after a long sleep. I wish I could say we're waking up from a long sleep, too, but the truth is we're merely shifting from hard-work-inside to hard-work-outside. It's the same with the fauna. As I mentioned in the post on bird baths, our feeders were super active all winter. In addition to the usual flocks of house sparrows, house finches, and European starlings, we experienced frequent visits from cardinals, dark-eyed juncos, woodpeckers, and even the white-throated sparrow, a treat to watch for its two-footed, back-and-forth dig move in the dirt under our feeders. Like the birds, we're flush with motivation to make the most of springtime; while we marvel at the awakening garden, several projects are keeping us busy during this shelter-in-place.

Daffodils are a traditional harbinger of spring in St. Louis, where they explode in profusion beginning in mid-March. We're still discovering new ones popping up after a few years' recovery from the denuding the property underwent before a developer listed it for sale in 2016-17. As with a lot of the other plants we've kept, they seem much more robust now that we've rehabilitated the damaged landscape by removing invasives and turf grass and adding sheet-mulch to replenish the soil.

A word about ornamental bulbs: They're vastly overused, especially considering how little they give back to the living things around us. Unlike the native plants we're focusing on at Dragon Flower Farm, they are not sources of nectar, pollen, or food for most pollinators and insects, so they're essentially living statues in the garden. Still, from a permaculture perspective, they can serve a purpose, and for us that's to discourage critters from gnawing down our tender seedlings and transplants. We have a tough time keeping the rabbits from decimating our fruit bushes and trees, so we're moving the bulbs to encircle anything we don't want the rabbits to eat. This is working so far; rabbits find ornamental bulbs distasteful. 

Daffodil 2 2020
The one's making an appearance for the first time in three years.

Speaking of rabbits gnawing on tender young woody fruit bark... we recently dug a moat around our blueberries. This is not actually meant to keep the rabbits away but to keep water around the blueberries. It's an experiment and part of our ongoing self-education in permaculture principles. I got the idea from watching the entire playlist put out by Midwest Permaculture. In a few of the videos, you'll see a moat around a tomato patch, and there's also an ongoing series of presentations on the importance of retaining water through rain gardens, ditches, and water-loving plants.

Hopefully, this will help reduce the amount of water we need to extract from the county's water supply. I also sowed chervil and lavender around the blueberries - both companion plants that should help create a small guild of supportive interconnections. Still, Anthony and I have to laugh at ourselves. In my best Ron White voice, I turned to him during this process and deadpanned, "I'm spending a beautiful Saturday digging a moat in my backyard, and I don't really know why."

Blueberry moat 2020
Yep, it's a moat. Around the blueberries.

While we certainly want more water in some areas, we actually have a bit of a water problem in others, mainly our basement. You might remember our French drain from a couple of years ago; well, it hasn't at all solved the problem. Our next least-expensive option was to replace the old, easily-clogged gutters on our house. We did just that in early spring, also taking the opportunity to rig up a rain barrel system, which my brother recently scored for us from his vacating neighbor. Both barrels have pretty much been entirely full since installation, which just goes to show you how much water runs off your property all the time - in our case down toward the damaged, urbanized River Des Peres and out to the Mississippi.

Rain Barrels 2020
Who knew rain barrels could be so beautiful?

The next thing on our list water-wise is to bury that flex pipe, which isn't very nice to look at. I'd like to have it drain into another rain garden area, joined by the pre-existing French drain pipe that already lets out there. The entire landscape slopes down toward the south, so I'm thinking about a serpentine path that would slow the runoff. We'll see.

A wide variety of sources - from the Missouri Department of Conservation to Wild Ones to the Audubon Society to our native plant hero Doug Tallamy - all recommend delaying your spring cleanup as long as possible. So we left the leaf litter, spent vines, and dried-out perennial stalks all winter and are only tackling it in necessary spots right now. The reason? A great many flora depend on that plant material, whether it's red bats sheltering in dead leaves or insect larva needing a first meal. Besides, decaying plant matter is basically free, organic fertilizer. When we do remove it, like we did around the sedums lining our front walk, we do so gently and repurpose it nearby as mulch, as shown below.

Front Walk 2020

The daffodils aren't the only plants trumpeting spring. Our lilac will bloom out in the next few weeks; alas, the blooms only show themselves for a short time. We hope to harvest as much as we can to dry in bunches, and maybe we'll also have the time to make some lilac syrups, infusions, and other concoctions. It's a terrifically useful flower.

Lilac Buds 2020

The daffodils and lilacs do point out a flaw in most suburban landscape design. When we moved in, our garden had been designed in the all-too-common mainstream method, which meant exotic ornamentals and invasive plants. Only the volunteers were true natives - the sensitive ferns and violets - and the violets had to be mown, as they were interspersed with lawn. This meant everything bloomed in spring, like one big flower detonation followed by nothing else. Pretty disappointing, in my opinion. I see this in a lot of Midwestern yards, unfortunately. So the spring here is incredible - there's no doubt about it - but the rest of the year could use more bloom.

Last week I talked about what it's like to begin to feel settled enough in a place to plan for the long haul. One of the most thrilling sights this spring is to see the thriving serviceberry (Amalanchier arborea) budding out. We put it in the ground in the fall of 2018 in our first wave of native plantings.

Serviceberry Spring 2020

Happy spring, y'all!

You Might Also Like:

The First Trees and Shrubs

The Importance of Staying Put

Honeysuckle, You Really Suck

We Go a Bit Daffy for Daffodils


The Care and Feeding of Your Skillet

IMG_0828

Note: This is part two in a three-part series devoted to cast iron skillets. Part one is here.

By Anthony Valterra

Generally, there are a few rules for cast iron skillet care and a few myths that can be dispelled. First of all, there is cleaning the pan. A well-seasoned pan, that is being used properly, should not be difficult to clean up. Hot water and a metal spatula are usually all you need. If you are cooking something that has a lot of sugar or starch (say potatoes), then you may need to break out the non-soap steel wool. But once again, you won't be "scrubbing;" you will be scraping gently. Soap is usually considered a bit of a no-no, and we don't use it. But everyone I've read says a small amount is 'no big deal.' If you are going to use soap, as I said in my previous skillet post, I would recommend something with few chemicals and/or perfumes. If you want an alternative to soap, you can try salt and a bit of oil. 

Once clean, depending on whether you want to save paper or save energy, you can go one of two directions. If you want to conserve energy, you can wipe the pan dry with a paper towel or a clean cloth. If you want to conserve paper, you can dry the pan by shaking off as much water as you can and then setting it on the stove on low heat to evaporate the remaining water. If the pan only requires some hot water to get clean, there is often a good amount of oil remaining from the cooking. If so, just wipe that into the pan, and once the pan is dry, put it away. If it took more scraping, or if you used soap or the pan looks or feels dry, then just rub a bit of oil onto the surface before you put it away.

Pans store best hung. As always, the reason is purely practical. The worst thing you can do to a skillet is to let it sit with water on it. Unless you are extremely careful, it is very easy to have a wet pan sitting on top of another pan. But not everyone has the ability to set up a pan-hanging rack like this one.

Castironhanging
This image courtesy Pixabay. All others by Anthony Valterra.

We are still working out how and where we would put something like that in the kitchen. So, for now, we are stacking our pans and being careful about drying them. This is what we have. At least they are not resting on each other. 

IMG_0840

Moisture really is the enemy of iron pans, so there are a few things you should avoid doing. Baking in a pan is one common way of using them. If you are making pan pizza or lasagna, then you could use the pan to bake the dish. But what you don't want to do is store the food in the pan. It may be tempting to just put the leftover pizza (leftover? How big is your pan?) into the refrigerator, still in the pan, but don't do that. The food has moisture in it, and it is sitting on the pan. As an example: here is a lovely shepherd's pie baked in a pan (no blackbirds, I swear). We had plenty of leftovers, but they were taken out of the pan and stored in another container.

IMG_0832

Along the same lines, a common solution for cleaning pans is to let them soak in hot water to loosen food. I would not do this longer than the length of a meal. So, if you finish cooking and before you sit down, you put hot water in your pan, and then after the meal is done you clean the pan, you are probably fine (I have certainly done this). But don't give in to temptation and leave it overnight.

Proper care of your pans will ensure that you need to re-read the first entry in this series of posts less often. But just in case, seasoning your pan can be found here. Next up, we will look at the right ways to use this well-seasoned, well-cared-for pan.

You Might Also Like:

The Skill That Goes Into a Skillet

Our Best Antique Mall and Freebie Finds of the Year

Home Changes That Are Both Functional and Easy on the Eye