Wednesday, August 20, 2014

Nitrogen Fixing Plants

White Clover


Picture taken in the ERJ yard.  Given our abundant rains this year we have white clover growing everywhere.


"The Land of Milk and Honey" has been interpreted as a land rich in White Clover.  Clover makes milk.  Clover makes honey.  Clover fixes nitrogen and makes it available for the plants that associated with it.

White clover demands moisture as it has shallow roots.  It demands soil that is not acidic.  It demands abundant potassium and weird micronutrients like molybddnum. It demands sunlight which translates to regular grazing.  White clover is a short plant and cannot compete with tall grasses unless they get grazed down on a regular basis. In spite of its demands white clover does the heavy lifting in the pasture.

A common guideline is to attempt to manage your pasture sward so somewhere between 20% and 50% of the canopy is white clover.  A land with pastures between 20% and 50% truly is a land of milk and honey.

The guideline of having 20%-to-50% of the canopy belong to nitrogen fixing plants is also a decent rule for woodlots and orchards as well. I use the word "canopy" to mean the sunlight intercepted by plants.

Secondary Nitrogen Fixing Plants in the sward


Red Clover

Birdsfoot trefoil

Alfalfa
Nitrogen Fixing Plants In the woods

Black Locust
Durable wood, good firewood, flowers provide nectar to bees.  Roots tend to throw up suckers all over the place.  Twigs are thorny.

Autumn Olive
Large shrub.  Very drought tolerant.  Edible berries.  Good honey plant.  Considered invasive in many places.

On my wish list

Edible, Nitrogen Fixing Vines that thrive in difficult places.

Ground Nut (Apios americana).  Pictures from Eaton Rapids, Michigan.

Between a road and a pond.  You can see cattails and pond water in upper left corner of photo.
Most Ground Nuts in the north are triploid and don't set seeds.  They were spread by tubers.  Reading between the lines, they were probably spread by native Americans, either as intentional agriculture or as spilled food.

These Ground Nuts were photographed on the property of a family who homeschools.  I printed off some material from the internet and shared the news of their good fortune.  I asked that they share some tubers with me if they dug some up as a homeschool lesson.  Time will tell.

Hog Peanuts (Amphicarpaea bracteata) Pictures from northwest Eaton County, Michigan



I marked out the densest portion of this patch with some surveyor's flags.  I intend to come back after a killing frost and remove a few shovelfuls worth of soil.

These plants are on my parent's property so I am good-to-go for permission.


Additional resources


Link to an article about using Nitrogen Fixing Plants in Permaculture

List of some Nitrogen Fixing Plants from HERE.  Estimates of Nitrogen Fixing capability should be taken with a grain of salt.

Scientific Name                               PLANTS Floristic Area Coppice Potential Nitrogen Fixation Berry/Nut/Seed Product Palatable Browse Animal Palatable Graze Animal Palatable Human
Acacia constricta NA (L48) No Low No Low
Yes
Acacia cyclops NA (L48) Yes Medium No Low
No
Acacia longifolia NA (L48) Yes Medium No Low
No
Acacia melanoxylon NA (L48), HI Yes Medium No Low
No
Albizia julibrissin NA (L48) No Medium No Low Low No
Alnus glutinosa NA (L48, CAN) Yes High No Low Low No
Alnus incana NA (L48, AK, CAN, SPM) No Medium No Medium Low No
Alnus incana ssp. rugosa NA (L48, CAN, SPM) Yes Low No Low Low No
Alnus incana ssp. tenuifolia NA (L48, AK, CAN) No Medium No Low Low No
Alnus maritima NA (L48) No Medium No Medium Low No
Alnus rhombifolia NA (L48) No Low No Low Low No
Alnus rubra NA (L48, AK, CAN) No High No Medium
No
Alnus serrulata NA (L48, CAN) No Medium No Medium Low No
Alnus viridis ssp. crispa NA (L48, AK, CAN, GL, SPM) No Low No Low Low No
Alnus viridis ssp. sinuata NA (L48, AK, CAN) No Low No Low Low No
Amorpha canescens NA (L48, CAN) No Medium No High Low No
Amorpha fruticosa NA (L48, CAN) Yes Medium No Low Low No
Amorpha glabra NA (L48) No Medium No Medium Low No
Andira inermis NA (L48), PR, VI No Medium No Low Low No
Apios americana NA (L48, CAN) No Medium No Medium Medium Yes
Astragalus agrestis NA (L48, CAN) No Medium No Medium Medium No
Astragalus canadensis NA (L48, CAN) No Low No Low Low No
Astragalus cicer NA (L48, AK, CAN) No High No High Medium No
Astragalus curvicarpus NA (L48) No Low No Low Low No
Astragalus filipes NA (L48, CAN) No Medium No Medium Low No
Astragalus lentiginosus NA (L48, CAN) No Medium No Low
No
Astragalus mollissimus var. mollissimus NA (L48) No Medium No Low
No
Astragalus purshii NA (L48, CAN) No Medium No Low Low No
Baptisia tinctoria NA (L48, CAN) No Low No Medium Low No
Caesalpinia gilliesii NA (L48), PR No Low Yes

Yes
Cajanus cajan NA (L48), HI, PR, VI No Medium Yes High High Yes
Calliandra eriophylla NA (L48) No Low No High High No
Caragana arborescens NA (L48, AK, CAN) Yes Medium No Low Low No
Casuarina cunninghamiana NA (L48), PR No Low No

No
Casuarina equisetifolia NA (L48), HI, PR, VI No Low No

No
Casuarina glauca NA (L48), HI Yes Low No

No
Catalpa speciosa NA (L48, CAN) No Low No Low Low No
Ceanothus americanus NA (L48, CAN) No Low No Medium Low Yes
Ceanothus cordulatus NA (L48) No Low No High Low No
Ceanothus cuneatus NA (L48) No Low No Medium Low No
Ceanothus fresnensis NA (L48) No Low No Medium Low No
Ceanothus greggii NA (L48) No Low No Medium Medium No
Ceanothus integerrimus NA (L48) No Low No High Medium No
Ceanothus megacarpus NA (L48) Yes Low No Low Low No
Ceanothus papillosus NA (L48) Yes Low No Low Low No
Ceanothus prostratus NA (L48) No Low No Low Low No
Ceanothus sanguineus NA (L48, CAN) No Low No Low Low No
Ceanothus velutinus NA (L48, CAN) No Medium No Low Low No
Cercocarpus ledifolius NA (L48) No Low No High Low No
Cercocarpus montanus NA (L48) No Low No High Medium No
Chamaecrista fasciculata NA (L48) No Medium No High Medium No
Comptonia peregrina NA (L48, CAN) No Low No Medium Low No
Crotalaria spectabilis NA (L48), HI, PR No Medium No Low Low No
Cytisus scoparius NA (L48, AK, CAN), HI No High No Low
No
Dalea candida var. candida NA (L48, CAN) No High No High High No
Dalea formosa NA (L48) No Medium No Medium Medium No
Dalea purpurea var. purpurea NA (L48, CAN) No Low No Medium Medium No
Delonix regia NA (L48), HI, PR, VI No Low No

No
Desmanthus illinoensis NA (L48) No Low No High High No
Desmanthus virgatus NA (L48), PR, VI No Medium No High High No
Desmodium incanum NA (L48), HI, PR, VI Yes Low Yes High High No
Desmodium paniculatum NA (L48, CAN) No Low No Medium Medium No
Desmodium perplexum NA (L48) No Low No Medium Low No
Desmodium tortuosum NA (L48), HI, PR, VI No Low No Low Low No
Desmodium triflorum NA (L48), HI, PR, VI No Low No Low Low Yes
Dryas drummondii NA (L48, AK, CAN) No Low No Medium Low No
Dryas octopetala NA (L48, AK, CAN, GL) No Medium No Low Low No
Elaeagnus angustifolia NA (L48, CAN) No High No Low Low Yes
Elaeagnus commutata NA (L48, AK, CAN) No Medium No Medium Low Yes
Elaeagnus umbellata NA (L48, CAN), HI No Medium No Medium Low Yes
Gleditsia aquatica NA (L48) No Low No Medium Medium No
Gliricidia sepium NA (L48), PR, VI No High No High High No
Glycine max NA (L48, CAN), PR No Medium No High High Yes
Glycyrrhiza lepidota NA (L48, CAN) No Low No

No
Gymnocladus dioicus NA (L48, CAN) No Low No Low Low No
Hedysarum alpinum NA (L48, AK, CAN) No Low No High High Yes
Hedysarum boreale NA (L48, AK, CAN) No Medium No High High No
Hedysarum boreale ssp. boreale var. boreale NA (L48, CAN) No Medium No High High No
Hedysarum sulphurescens NA (L48, CAN) No Low No Medium High No
Hippophae rhamnoides NA (CAN) Yes Medium Yes Low Low No
Indigofera hirsuta NA (L48), PR No Medium No Low Low No
Kummerowia stipulacea NA (L48) No Medium No Low High No
Kummerowia striata NA (L48) No Medium No Low High No
Lablab purpureus NA (L48, CAN), HI, PR, VI No Medium Yes High High Yes
Lathyrus hirsutus NA (L48) No High No High High No
Lathyrus japonicus NA (L48, AK, CAN, GL, SPM) No Medium No Low Low No
Lathyrus littoralis NA (L48, CAN) No Medium No

No
Lathyrus polyphyllus NA (L48) No Medium No

No
Lathyrus tuberosus NA (L48, CAN) No Medium No Low Low No
Lespedeza capitata NA (L48, CAN) No Medium No Medium Low No
Lespedeza hirta NA (L48, CAN) No Medium No Low Low No
Lespedeza virgata NA (L48) No Medium No Medium Medium No
Leucaena leucocephala NA (L48), VI No High No High High Yes
Leucaena retusa NA (L48) No Low Yes Medium High No
Lonicera maackii NA (L48, CAN) Yes Low No Low Low No
Lotus corniculatus NA (L48, CAN, SPM) No Medium No High High No
Lotus crassifolius NA (L48) No Low No Low Medium No
Lotus glaber NA (L48, CAN)





Lotus tenuis
No Medium No Medium High No
Lotus wrightii NA (L48) No Low No High Medium No
Lupinus albicaulis NA (L48) No High No Low Low No
Lupinus albus NA (L48) No High No Low Low No
Lupinus ×alpestris NA (L48) No Medium No Medium Medium No
Lupinus angustifolius NA (L48, CAN) No High No Low Low No
Lupinus arboreus NA (L48, CAN) No Medium No Low Low No
Lupinus arcticus NA (L48, AK, CAN) No Low No Medium Low Yes
Lupinus argenteus NA (L48, CAN) No Low No Medium Medium No
Lupinus caudatus NA (L48) No Low No Medium Medium No
Lupinus covillei NA (L48) No Low No Medium Medium No
Lupinus elmeri NA (L48) No Medium No Medium Medium No
Lupinus havardii NA (L48) No Low No Medium Medium No
Lupinus latifolius NA (L48) No Low No Medium Medium No
Lupinus lepidus NA (L48, AK, CAN) No Low No Medium Medium No
Lupinus luteolus NA (L48) No Medium No

No
Lupinus luteus NA (L48) No High No Low Low No
Lupinus nevadensis NA (L48) No Medium No Low Low No
Lupinus nootkatensis NA (L48, AK, CAN) No Low No Low Medium No
Lupinus sericeus NA (L48, CAN) No Low No Medium Medium No
Lupinus sulphureus NA (L48, CAN) No Low No Medium Medium No
Macroptilium atropurpureum NA (L48), HI, PR No Medium No High High No
Medicago lupulina NA (L48, AK, CAN, GL, SPM), HI No Medium No Medium Medium No
Medicago polymorpha NA (L48, AK, CAN), HI No High No Medium High Yes
Medicago sativa NA (L48, AK, CAN), HI, PR, VI No High No High High Yes
Medicago scutellata NA (L48) No Medium No Medium Medium No
Melilotus indicus NA (L48, CAN, GL), HI





Melilotus indica
No Medium No Medium Medium No
Melilotus officinalis NA (L48, AK, CAN, GL, SPM), HI, PR No Medium No Low Medium No
Melilotus alba
No Medium No Medium Medium No
Morella californica NA (L48, CAN) Yes Low No Low Low No
Morella pensylvanica NA (L48, CAN, SPM) No Medium No Low Low No
Morinda citrifolia NA (L48), HI, PR, VI No High Yes

No
Myrica gale NA (L48, AK, CAN, SPM) No Low No

No
Oenothera pilosella NA (L48, CAN) No Low No Low Low No
Olneya tesota NA (L48) No Low No Medium Low Yes
Onobrychis viciifolia NA (L48, AK, CAN) No Medium No High High No
Oxytropis lambertii NA (L48, CAN) No Low No

No
Oxytropis splendens NA (L48, AK, CAN) No Low No Low Medium No
Phragmites australis NA (L48, CAN), HI, PR No Low No Low Low No
Pluchea odorata var. odorata NA (L48), PR, VI No Low No
Medium No
Prosopis glandulosa var. glandulosa NA (L48), VI Yes Low No Medium High Yes
Prosopis pubescens NA (L48) Yes Low No High High Yes
Purshia glandulosa NA (L48) No Low No High High No
Purshia stansburiana NA (L48) Yes Low No High High No
Purshia tridentata NA (L48, CAN) No Low No High Medium No
Robinia neomexicana NA (L48) Yes Low No High High No
Robinia pseudoacacia NA (L48, CAN) Yes Medium No Low Low No
Securigera varia NA (L48, CAN), HI





Coronilla varia
No Medium No High Medium No
Senna marilandica NA (L48) No Medium No High High No
Sesbania grandiflora NA (L48), PR, VI Yes Medium Yes High High Yes
Shepherdia argentea NA (L48, CAN) Yes Medium No Medium Low Yes
Shepherdia canadensis NA (L48, AK, CAN) Yes Medium No Medium Low Yes
Sophora secundiflora NA (L48) Yes Medium No

No
Trifolium alexandrinum NA (L48) No High No High High No
Trifolium ambiguum NA (L48) No Low No High High No
Trifolium fragiferum NA (L48, CAN) No Medium No High High No
Trifolium hirtum NA (L48) No Low No High High No
Trifolium hybridum NA (L48, AK, CAN, SPM), HI No High No High High No
Trifolium incarnatum NA (L48, CAN), HI No Medium No High High No
Trifolium longipes NA (L48) No Medium No Low Low No
Trifolium macrocephalum NA (L48) No Medium No Medium High No
Trifolium nigrescens NA (L48) No Low No High High No
Trifolium pratense NA (L48, AK, CAN, GL, SPM), HI, PR No Medium No High High No
Trifolium repens NA (L48, AK, CAN, GL, SPM), HI No High No High High No
Trifolium subterraneum NA (L48, CAN), HI No Medium No High High No
Trifolium vesiculosum NA (L48) No High No High High No
Trifolium wormskioldii NA (L48, AK, CAN) No Medium No Medium High No
Vicia americana NA (L48, AK, CAN) No Low No High High No
Vicia benghalensis NA (L48) No Low No

No
Vicia cracca NA (L48, AK, CAN, GL, SPM), HI No Medium No High High No
Vicia grandiflora NA (L48) No High No High High No
Vicia lutea NA (L48) No High No High High No
Vicia sativa NA (L48, AK, CAN, SPM), HI No Low No Medium Medium Yes
Vicia villosa NA (L48, AK, CAN), HI No Medium No High High No
Vigna radiata NA (L48) No Medium No High High Yes
Vigna unguiculata NA (L48), PR, VI No High No High High Yes
Wisteria frutescens NA (L48) No Medium No High High No

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