Infinipeas : Grow Peas, Save Seed, Repeat For A Never Ending Harvest

The hardest part about saving seed from pea plants is to refrain from eating every last pea. But if you can bring yourself to leave some of those beautiful pods on the vines, you can reap a different kind of harvest: the harvest of next year’s garden.

The start of the seed-saving process happens before planting, when you are ordering seeds and designing your spring garden. You’ll need to start with heirloom pea seeds. These are seeds that will reproduce true to type and are free of any patents or restrictions. You can find heirloom pea seeds from places like Seed Savers Exchange and Baker Creek. If you want to save seeds from a small garden, it’s easiest if you grow only one variety of pea, though it is possible to grow more than one kind with some care.

Peas are self-pollinated and not very eager to cross pollinate with other pea plants, but if you’re growing more than one variety of peas, it’s best to put some distance between each variety to prevent cross pollination. Some sources suggest that as little as ten feet of space between varieties is enough to prevent crossing, while others suggest a minimum of 50 feet or even hundreds of feet. You can use your own judgement based on the size of your garden and how important it is to you to prevent cross pollination. If you’re growing multiple varieties of peas with a smaller isolation distance, you can further reduce the risk of cross pollination by planting lots of other early flowering plants in the garden to keep the bees busy and away from your pea flowers, or by placing screens or covers over your plants to exclude bees and prevent cross-pollination.

Snow peas, garden peas, and sugar snap peas are all the same species (Pisum sativum), and it is possible for them to cross pollinate with each other. If that happens, you might grow a whole new type of pea that’s not really a garden pea, nor really a snow pea, nor really a sugar snap. You might like the result, or you might not. Even if you’re only growing snow peas, if you’re growing three varieties of snow pea, they could cross pollinate with each other to create a new variety that may or may not be a favorite. If you’re a very relaxed and experimental gardener, there’s nothing wrong with saving mystery pea seeds, growing them, and trying the result! But once you find a favorite pea variety that you really want to preserve, you’ll need to separate it from any other Pisum sativum to ensure that the seeds you save will be true to type. Peas will not cross pollinate with beans (Phaseolus vulgaris), limas (Phaseolus lunatus), black eyed peas (Vigna unguiculata), chickpeas (Cicer arietinum), or anything else that isn’t a Pisum sativum.

Once you have your seeds and your garden design, the next step is planting. I like to plant my peas on St. Patrick’s day here in central Indiana. I dress all in green and lure my husband into the garden and we plant them ceremonially as a part of our holiday festivities. I use a no-till gardening method and prepare my soil in the fall, so I don’t have to wait for the ground to dry out enough to support heavy machinery. In my best years, I build trellises for the pea plants out of bamboo stakes and jute twine. This spring I never quite got around to building the trellises. The plants didn’t grow as tall as they might have with good support, but I still got a decent crop. Peas are a wonderful crop for the organic garden, because they build soil fertility and are relatively free of pests and diseases. Since my goal was to expand my pea plot significantly in next year’s garden, I ate only a small percentage of the pods and left most on the vine to ripen into viable seeds. Next year I’ll have many more plants, so I’ll be able to eat more peas while still saving the same number of seeds. It’s best to save a few pods from as many healthy plants as possible to maximize genetic diversity, rather than to save all the pods from a few plants.

Pea Pods Dried on the Vine

The seeds in the pods are fully ripe when the pods are brown, dry, and brittle. In my garden, the whole plant is usually brown and dry by this time. If your pods are almost dry but you’ve got a hail storm or a hurricane on the way, you can probably pull the whole plants up by the roots and hang them upside-down in a protected location to wait for them to finish ripening and dry fully. If you aren’t facing terrible weather, it’s best to leave them in the ground until fully ripe and dry.

When it’s time, shell the peas out of their totally dry pods and leave them in a cool, dry, shady location for another few weeks to make sure they are all the way dry before storing them. Make sure you store them with a good label including all the relevant information about the seeds. After they are totally dry, they will keep longest in a sealed container in the fridge. If you plan to grow them within the next year or two, it’s fine to store them at room temperature in a cool, dark, dry location.

Pea Seeds, Labeled and Ready To Save

For further reading, check your library for the book “Seed to Seed” by Suzanne Ashworth, and this article by Seed Savers Exchange. You can also read more about my multi-purpose seed-saving garden in my post A Multipurpose Garden.

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A Multipurpose Garden

Last summer I had four raised bed gardens and one herb spiral. It was the humble beginning of what will eventually become a 3/4 acre market garden. I suppose I could rent some expensive heavy machinery and purchase a huge quantity of compost and seeds and hire some help and take over the entire 3/4 acre space at once, but I don’t prefer to work that way. I prefer to minimize my costs and my fossil fuel consumption, I like doing this work by myself and by hand, and I choose to grow my planting areas slowly so that when I make a mistake, I can correct it before it becomes a giant mistake. I worked all winter long expanding the garden, and it now consists of 13 raised beds, two herb spirals, a 20×30 in-ground vegetable patch, a large herb border, and mulched pathways. It’s my home garden, it’s a mini-sized market garden, and it’s also a seed garden. Next year I hope to make it twice as big.

I’ve filled every garden I’ve ever planted with heirloom seeds (open pollinated seeds that have been & can be saved and passed down through the generations). I choose heirlooms partly because I appreciate the colors, textures, rich flavors, history, and diversity, but also because I believe in them. An heirloom seed is a renewable resource. If you learn how to steward it, you never have to buy it again, and you can share it with whomever you please. And if you select seeds only from your best and healthiest plants, every year your seeds will become better adapted to your needs and local conditions.

One way to support heirloom seeds and keep them available for all is to purchase them from independently-owned seed companies with good ethical practices. I’ve done my share of that over the years, but lately I’ve been working towards becoming a seed keeper myself. Last year, I successfully saved seeds from my Provider Bush Beans, several kinds of herbs, and a particularly vigorous and tasty butternut squash from my friend’s garden. I also saved enough Carola seed potatoes to double my potato planting from last year, and I have previous experience saving garlic cloves to replant year after year. It is extremely satisfying work. This year I planted the seeds that I saved, and now I’m watching them thrive with an extra layer of pride and connection. I remember your parents, little plants. Let’s make them proud together.

I structured my whole garden this year with seed stewardship in mind. Plants that can be isolated by distance have been given that isolation space to prevent cross pollination. For some other plants that can’t be isolated by space, I planted only one variety of each species so that no cross pollination can occur.

Corn is a special case, because it can be cross pollinated by wind up to 1/2 mile away. Although I’m only growing one variety of corn, my neighbors grow another. Since I can’t isolate my corn by distance, I am attempting to isolate it by time. I started my corn seeds extra early (indoors under lights, then transplanted at the proper time), and I chose a variety that is supposed to mature much faster than the kind my neighbors grow. With luck, my corn will be completely done before the surrounding field corn tassels. It’s really important not to let your garden corn cross pollinate with field corn, especially if you plan to save seeds, because the patented genetically modified genes from the industrial corn can get into your seeds. Even if your mother plant is an heirloom, if the father pollen is a GMO, you aren’t legally allowed to plant those baby seeds. Seed Savers Exchange does sell some special bags that can be used to protect the silks from stray pollen, and I am planning to use those too as an extra measure of protection.

I’ve even planted a few varieties that are rare and/or expensive, so I’m growing them just to make more seeds! One of these is a special bean from the Potawatami Nation called Potawatomi Pole Lima that I sourced from Truelove Seeds. The seeds are rare and they sell out quickly, so I only got one packet. I may not even eat any of the harvest this year, because that would reduce the number of seeds I can save to grow a larger planting next year. Another is Mandan Parching Lavender corn, a beautiful pink colored flour corn that is one of the traditional native corns from North Dakota. I’m also growing French Grey Shallots, Santé Shallots, Inchelium Red Garlic, and Tree Onions. These are not grown from seeds, but from bulbs. Bulbs are expensive compared to seeds, and $100 bought barely enough bulbs to fill two 4×8 beds. Will I get my money’s worth from that planting? Probably not, if I simply eat the harvest. But if I re-plant all or most of it, I’ll be able to increase my planting next year to many times that size for no additional money!

Before too long, I should have a market-sized planting of gourmet garlic, shallots, onions, lima beans, and much much more, and plenty enough to save seed AND eat my fill AND take to the market. With certain fruits like tomatoes and ripe peppers, you can save the seed and still eat the fruit the seed came out of. Win-win. Year after year, for as long as I continue the work, I’ll always be able to have these plants in my garden.

If you’re interested in saving seeds from your own garden, there are wonderful free resources available from Seed Savers Exchange. I also recommend the book “Seed To Seed” by Suzanne Ashworth. Perhaps it’s available for free at your local library! It’s a very rewarding, economical, and accessible skill.

If you enjoyed this totally ad-free, affiliate-link-free, sponsored-content-free, subscription-fee-free, 100% honest free article, please consider showing us some love! You can help us and our cause of Earth-positive agriculture by sharing this article with your friends, following us on social media, and interacting with our posts. If you’re feeling especially generous, you could also toss us a few coins through a free platform called Ko-Fi. It’s easy to use and processes through PayPal so you don’t have to create a new account.