Category Archives: Learning

Raised Bed Trials

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30" Potato and Tomato Raised Bed

24" Potato and Tomato Raised Bed

We are testing a wide variety of raised beds in the Dirt to Dinner garden. Just this week I added two new No Dig beds with tall trellising for cantaloupe and spaghetti squash. They are made of “found” lumber (it was Clean-Up Week in our neighborhood, so the finding part was easy) that 50 years ago was a backyard fence. I figure anything potentially unhealthy has surely leached out of it in all this time. Right?

The first bed we added to the front garden we took up the turf and dug the soil underneath, so it’s somewhere between 18″ and 24″ of new ammended soil mixed with the existing clay and topped with an inch of turkey farm compost. This bed holds potatoes and tomatoes, so I’m sure we’ll learn a lot about the quality of both the drainage and the new soil from the way the plants develop. It’s also in a windy corner, which the bush beans we tucked in there while the potatoes and tomatoes are getting started don’t seem too happy about. This also means the bed dries out more quickly than I would like and needs a thick mulching as soon as the plants are better established.

5" No Dig Squash Bed

5" No Dig Squash Bed

The shallowest of the raised beds is a No Dig 5″ deep bed with as close to Mel’s Mix as I could make with the materials at hand. And I do mean, No Dig with this one. It’s made out of found redwood timbers tacked together and laid straight onto the lawn. I am very curious to see how this bed does through the summer. I planted my spaghetti squash in this one, so I really hope it does well.

The idea is that the grass will die underneath the soil, turn into a natural compost and eventually become one with the dirt in the planting box. I imagine adding a lot of compost to this one through the Summer to keep the moisture content up. But will the grass grow up through 5″ of soil?

2'x2' of 6" and 12" Square Foot Sections

2'x2' of 6" and 12" Square Foot Sections

We also have a variety of Square Foot style beds in the Dirt to Dinner garden. My favorite ones, surprisingly, are the bi-levels. I thought I would want everything as deep as possible to hold all the soil and plants I could imagine, but I like the way this one looks in the garden and so far the occupants seem happy with their digs.

By far the largest raised bed in the Dirt to Dinner garden is the kids’ growing area which is over 18″ deep. The kids removed the turf and turned the soil underneath before the bed was constructed. At 112 square feet framed in traditional English willow hurdles, it is unique and also seems to be holding up well. willow-planter-almost-done1I have no doubt that the bed will provide ideal growing conditions and can’t wait to see what the kids do with it.

The original raised beds in this growing space are large plank board planters that stand 3′ high and are 4′ wide. They are great for keeping the dogs out and not having to bend over very far, and they are sturdy enough that you can even stand on the edge to adjust your cages or add to the trellis systems. But they are so deep that the soil compacts in them by a foot down and they are very ungainly to try to turn the soil in them because of their size. It’s tough to get a shovel into them and you end up breaking your back digging them out by hand every year or two to lighten the soil.

Full Circle Farm Visit

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Working on the Farm   Working on the Farm

This morning was our field trip to visit Full Circle Farm, the educational farm in the Santa Clara Unified School District in Sunnyvale.

The volunteer Garden Manager, Melissa, introduced us to the garden and showed the kids the large worm box that supplies part of the nutrients needed by the vegetables growing on the farm.

The farm hopes to soon be able to make all of it’s own compost and to use that as the only soil additives for the produce grown on Full Circle Farm. Part of our group helped turn compost piles that will contribute to this process.

Other members of our class sifted garden soil to make it into potting soil for new plants that are beginning life in the Full Cirlce Farm greenhouse. We need to make some screens like the ones they use at the farm for the Dirt to Dinner garden. They are wonderful for sifting compost and getting the lumpy “uncooked” bits back into the pile for some further decomposing. I’ll check our books for a sample design and take it with me to the hardware store this week.

Planting Fingerling Potatoes

Planting Fingerling Potatoes

Our class planted some small fingerling potatoes on the farm this week. They weren’t cut and developing big ‘eyes’ like the ones we started two weeks ago in the Dirt to Dinner garden, these were very small and planted whole in the soil. Melissa gave us some of these “seed” potatoes so the kids could start their own potato patches at home or in the Dirt to Dinner garden. There are also extra Yukon Gold and Purple potato “seeds” here in case they want to try several varieties and compare the plants and their growth, production or taste.

Wearing a Little Soil

Wearing a Little Soil

It was fun to see what you can do with a garden that covers over half an acre. By comparision, the whole lot that holds the Dirt to Dinner garden is about 1/8th of an acre. The size of the garden beds we currently have under cultivation is ~300 square feet. Because we are using raised beds and biointensive planting and growing techniques along with vertical supports, we can grow a lot more in a small space than if we did that same space in traditional rows the way much of the Full Circle Farm produce is planted, but it was still great to see what’s possible when you really have the room to spread out. I can dream, can’t I?

 

eyeing-the-fields

We Will Have Peas

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90 Days from Seed to Flower   90 Days from Seed to Flower

One way or another, we are determined that we *will* have peas from our garden. Two of the varieties from the Spring pea trial are all but forgotten, but the Picolo Provenzale  are growing in all three different plantings, and the January planting is starting to flower. OK, it’s what? Nearly 90 days out from planting, but hey, it’s flowers!

I’m also amazed that the Sugar Snaps in the back garden that each had their heads snapped off by some marauding varmint are starting to recover! They grew new vines from the roots up and around the bitten ends of the first ones and some of them are starting to put out tendrils like they mean to actually grow.

Sugar Sprints and Carrots

Sugar Sprints and Carrots

Nearby, in a 4′ x 4′ bed, there are Sugar Sprint peas growing, mostly under a burlap covered cage to protect them from everything. They don’t seem to mind the shade. The Picolo Provenzale starts in the front garden didn’t seem bothered by it while they were covered either. I take it off of them in the morning to allow them a few hours of direct sun and they seem fine.

buckets-of-tomatoesAnd we are getting to the stage where we have literally buckets of tomato plants. We have Roma Paste tomatoes for sauce and catsup, we have Principe Borghese for drying, we have Costaluto Genovese for fresh cooking, Big Beef and Crimson Carmello for slicing and eating, we even have a German Orange Strawberry tomato that I can’t wait to try! I’m afraid I may have even ordered some grape tomato plants in fun shapes and colors from Park Seed when it was still cold out and the garden was a limitless imaginary place.

Surviving the Spinach Monster--So Far!

Surviving the Spinach Monster--So Far!

And, happily, the evil Spinach Monster that devours my plants right down to the roots if I leave them outside after dark without a cover does not appear to like Bok Choi. What IS that thing? For a long time I thought it was ravenous snails or slugs because the plants that were up on the hottub cover at night weren’t bothered by it, but earlier this week several six-packs up there were creamed by whatever it is and the chard, tomatoes, peppers, etc. sitting right next to the spinach were fine. Maybe Popeye the Possum? I don’t know.

March Garden Tour

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Today I created a new Voicethread tour of the current state of the Dirt to Dinner garden: http://dirttodinner.ed.voicethread.com/share/407685/

You can compare it with where we originally started here: http://dirttodinner.ed.voicethread.com/share/323777/

I love Voicethread and can’t wait to get the kids started making their own. I set up the whole class with accounts today and am looking forward to seeing what they will share. It will be a wonderful way to bring their home gardening projects into the Dirt to Dinner classroom.

Voicethread ideas:

  • Sharing information on the microclimate where students live
  • Comparing how various growing projects do in the garden vs. at individual students homes
  • Creating a chronicle of a growing project, the process of composting, development of a plant from a seed, etc.
  • How to do something from the project such as pot-up a tomato plant or make your own carrot tape
  • Show how you prepared a recipe from the project for your family 
  • Create your own!

Ahead of Schedule

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Lyngo Soil Delivery    Lyngo Soil Delivery

I can’t believe it, but all the soil is in the beds for the Dirt to Dinner project. When the semi originally dumped one cubic foot of Diestel compost and six cubic feet of Essential Soil mix onto the driveway, my husband had to have been thinking to himself, “Two weeks–minimum.” But it’s all in place and looks delicious. It’s like someone covered all the bare and ugly spots and all the new planting beds with dark chocolate frosting.

Lining Willow Raised Bed "Hurdles"

Lining Willow Raised Bed "Hurdles"

The new willow raised bed is sitting on top of the ground the kids removed the sod from this weekend. It’s fully constructed, filled with soil, topped with compost and ready for them to plant in. The kids did a great job preparing the spot where the bed sits. Then we straightened the willow “hurdles” and tapped them into the ground with a mallet. After the bed was shaped and squared, copper wires are attached around all the corners to further support the “L” shape the kids decided to build in. After that, the inside of the frame was lined with black plastic and the soil was added.

We have also been thinking about adding a vertical growing element and may install trellising along two sides of the bed before we are done. It would give the project a lot more growing space and be a good exercise in growth habits and the flexibility–or inflexibility–of spacing guidelines.

Willow Raised Bed Almost Done

Willow Raised Bed Almost Done

Here’s the nearly finished willow raised bed, ordered as two 4′ x 12′ beds, then arranged in an “L” shape to add an additional 16 square feet of planting space that will be used by our instructor, Mackenzie, for her demonstration gardening space. Total growing area is 112 square feet, or 9.3 square feet per participating child, if anybody is counting. ;-)

We are built out two weeks before our earliest estimate and the weather feels ready to go too. We are also ahead of schedule in some of our growing and planting. The 85-year-old neighbor, who was raised on a farm in Iowa, assures me that it is safe to put out my tomatoes now, so I have gotten severl different varieites and am excited to see the German “Orange Strawberry” tomato plant my mother-in-law is sending over this weekend. I’m going to need a protected spot for that one.

P. Borghese in Flower

P. Borghese in Flower

I think I’m happy to report that we have our first tomato flowering. Though it might have actually been a stress response to being too crowded by the other tomato plants where it was pottted. Anyway, it’s in a good spot now growing with some Bok Choy on one side and Spinach on the other. I’m trying to find space for a dozen of the P. Borghese tomatoes to have lots of them for drying since the whole family *loves* sun-dried tomatoes. Of course, I have no idea how many tomatoes each plant will give, when they will give them, or how many we actually need for drying enough for the rest of the year. This is a year for learning what *not* to do next year!

Here’s the sum total of what I know about my dozen or more tomato plants right from the Victory Seed web site:

75 days, determinate — Italian heirloom variety very popular in Italy and California for splitting in half and sun drying. They maintain color and flavor well. The plants produce heavy yields of small, red plum-shaped fruits. The plants will benefit from support such as caging.

We plan to track how many pounds of tomatoes given by each plant, the height of the plants, the size of the cage needed for the plants, the amount of square feet required to grow the plants and anything else we might need to know to grow them well again next year if we like them.