Brambleberry Farm
Brambleberry Permaculture Farm LLC

Nitrogen Fixing Plants

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Herbaceous Layer (Flowers and Herbs)

Nitrogen Fixers

Baptisia (Blue False Indigo) 2'' plugs $3, Quart pots $6, Gallon* pots $12


Dwarf Baptisia (Blue False Indigo) Baptisia australis varr. minor: Very showy blue flowers cover this perenial lugume for about 3 weeks in the spring, followed by ornamental black bean pods.  Not edible, but not poisonous like lupines.  The foliage is compact and very attractive all season long, reaching 18-24" tall and wide.  

Nitrogen fixing flower 18-24" tall and wide.  Full Sun to light shade.


Other: We carry a changing variety of other nitrogen fixing ornamental forbs such as lupines, galega, lespedeza, etc.

Herbaceous Layer (Flowers and Herbs)


Nitrogen Fixers

Clover  2'' plugs $3, Quart pots $6


Dragon's Blood Clover Trifolium repens: This beautiful ornamental ground cover is a cultivar of dutch white clover that has been bred for the flower bed.  It is less aggressive or invasive than dutch white clover, but still a vigorous grower.  Light green leaves with spashes of red.  

Low growing, non-invasive ornamental groundcover.  Full Sun to part shade.


Pentaphyllum Clover Trifolium repens: This beautiful ornamental ground cover is a cultivar of dutch white clover that has been bred for the flower bed.  It is less aggressive or invasive than dutch white clover, but still a vigorous grower.  Dark reddish green leaves with a thin green border.  

Low growing, non-invasive ornamental groundcover.  Full Sun to part shade.






Goumi berry  2'' plugs $3, Quart pots $6, Gallon* pots $12


Seedling of 'Sweet Scarlet' Goumi berry (Elaeagnus multiflora): Another nitrogen-fixing shrub, though it is not a legume.  Very similar to autumn olive, though it is smaller in stature, has bigger berries borne in spring, and is not known to be expansive (invasive).  Thorny-stemmed bush to 8’ tall, covered with abundant early flowers that cast a strong floral fragrance.  These are followed by oblong, silvery-red, juicy 1/2” berries that have a soft, chewable seed in the center (interesting side note that this seed is very rich in healthy oils).  They have a flavor like a tart cherry mixed with apple and are the first berries to ripen here.  Fully self-fertile.  

1/4" sweet-tart berries, attractive 6' tall by 5' wide shrub, very disease and pest resistant, nitrogen fixer, self fertile.  Full to Part Sun.




Nitrogen Fixers

False Indigo Bush  2'' plugs $3, Quart pots $6, Gallon* pots $12



Amorpha False Indigo Bush (Amorpha fruiticosa): Amorpha fruiticosa is an attractive native wildflower shrub. It is a legume, and is often used in permaculture plantings as a nitrogen fixer - usually with the plan to coppice the bush ("chop & drop") because it will reach a fairly substantial size if not chopped down frequently. 15-18' tall and spreading up to twice that width. NOT edible, it's practical benefits are mostly beauty, nitrogen fixing and soil stabilization, and it also has some potential as a natural insecticide. Fast growing, thornless.  

Native nitrogen fixing shrub up to 18' tall, but can be coppiced.  Full to Part Sun.


Seedling Siberian Pea Shrub (Caragana arborescens): This is a leguminous shrub that can be planted among other plants to add nitrogen to the soil.  The bee-attracting yellow blossoms in late spring turn to edible pods that can be eaten green like snow peas or left to dry when they are full of small dry beans.  These are 36% protein and can be cooked and eaten by humans, though they are most often given to chickens who readily gobble them up.  Often planted in poultry yards for this purpose.  Shrub can grow to 15’ but are easily kept pruned or coppiced back to much smaller sizes.  Heavy pruning and laying the stems as mulch is also the best way to utilize the nitrogen fixing aspect of this plant (and other N fixers).  Often slow growing in our region - may not be well adapted to our soils or climate.  Best in full sun, and prefers well-drained soil.  Zone 2-9.  

Grows up to 15' tall, but can be pruned smaller, well drained soil, self-fertile.  Full Sun.




Nitrogen Fixers

Locust, Honey  2'' plugs $3, Quart pots $6, Gallon* pots $12


Thornless Seedling Locust, Honey (Gleditsia triacanthos): Seedlings from a grove of thornless parent trees.  There is a small chance that some may develop thorns as they get older.  Fast growing, tall and spreading trees create dappled rather than deep shade.  Can take a variety of soil types, known for being able to grow in polluted, compacted urban soils.  Pods are an excellent livestock feed (nutritionally equivalent to barley grain by sheep and goats) and the pulp is a sugary "nibble" for people too.  Lumber has some rot resistance and is a beautiful honey-red/orange color.  We might have some thorny individuals available if you prefer a tree that protects itself from varmints.  

Small % may develop thorns.  Fast growing, tall, spreading trees make nice shade trees. Seedpods good livestock feed..  Full Sun to part shade.


Seedling Redbud : A legume, but not actually very good at fixing nitrogen.  Nevertheless, this beautiful native ornamental tree with edible flowers deserves a place in your landscape.  

Attractive native landscaping specimen.  Edible flowers taste like pea shoots..  Full to Part Sun.


LSU Groundnut (Apios americana): An improved variety of a native plant developed at LSU.  There are reports of the tubers reaching the size of basketballs, but they will likely be smaller in our climate.  Wait at least 2 years before first harvest.  Tubers and seeds are both edible, and have high protein content for a tuber (17%).  Prefer rich, well drained soil.  Flowers are fragrant, very pretty, orchid like, smallish, and born in clusters.  

Large edible tubers, nitrogen fixing, attractive, fragrant flowers..  Full to Part Sun.

We do not ship plants. To reserve plants please either call us, or email us , and schedule an appointment to pick them up. We can also DELIVER for a fee to our general region.  

*size designations are nominal. We use “trade gallons” (which are slightly less than a gallon) as well as recycled pots that may vary in exact size.  Every plant may not be available in every size listed.  Gallons are common for grafted trees and quarts are most common for everything else.  There are usually a very limited number of two gallon plants available – first come first serve.