Collection: Nitrogen Fixers

What is Nitrogen Fixation?

Certain plants and trees such as locusts, peas, clover, sea buckthorn, and legumes can fix (or hold) nitrogen in the soil. They nearly always have visible root nodules (but not always) which form a symbiotic relationship with a strain of bacteria called rhizobia. The rhizobia transform atmospheric nitrogen into nitrogen compounds (nitrates and ammonium), so that plants can actually use it, as nitrogen on its own is not much use to a plant. Plants do need nitrogen to grow though, and 'nitrogen fixation' (what the rhizobia do) is the principal way nitrogen gets 'fixed' or held, in the soil. Without rhizobia or the root nodules, we would be in quite a pickle. So instead of spending time, energy, and money on fertilizer, consider studding your orchard with nitrogen fixing plants. There are many annual options, but if you want a lower maintenance nitrogen fixer, trees and bushes are an excellent long term investment of space and money.

Excellent nitrogen fixers include: Locusts (Black and Honey), Sea Buckthorn, Kentucky Coffee, and Wisteria (though you'll need a sturdy trellis for that one!). We have been squirreling away local Speckled Alder, Siberian Pea Shrub and Autumn Olive seeds, and hope to add those to the catalogue by spring 2022.

11 products
  • Black Locust Seedling
    Black Locust Seedling
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    Sale price
    $8.00
  • Chuyskaya Sea Buckthorn (Female)
    Chuyskaya Sea Buckthorn (Female)
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    Sale price
    $20.00
  • Harvest Moon Sea Buckthorn (Female)
    Harvest Moon Sea Buckthorn (Female)
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    Sale price
    $20.00
  • Honey Locust Seedling
    Honey Locust Seedling
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    Sale price
    $6.00
  • Kentucky Coffee Seedling
    Kentucky Coffee Seedling
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    Sale price
    $8.00
  • Lord Sea Buckthorn (Male)
    Lord Sea Buckthorn (Male)
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    Sale price
    $15.00
  • Mary Sea Buckthorn (Female)
    Mary Sea Buckthorn (Female)
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    Sale price
    $20.00
  • Orange Energy Sea Buckthorn (Female)
    Orange Energy Sea Buckthorn (Female)
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    Sale price
    $20.00
  • Prevoshodnaya Sea Buckthorn (Female)
    Prevoshodnaya Sea Buckthorn (Female)
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    Sale price
    $20.00
  • Sea Buckthorn Seedling
    Sea Buckthorn Seedling
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    Sale price
    $8.00
  • Wisteria Seedling
    Wisteria Seedling
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    Sale price
    $8.00