Craig Dremann's TOP 70 KANSAS SOIL NUTRIENT and
ORGANIC MATTER THRESHOLDS for native grass seedlings
with data links, including some of the food plants for wildlife,
rangeland forage, and wildflowers for native pollinators.

The Reveg Edge, P.O. Box 361, Redwood City, CA 94064

Copyright © 2018 by Craig C. Dremann - 650-325-7333 - email

No links = Thresholds that still need to be determined, using the Waypoint Lab A-17 soil test plus an A-19-2 organic matter test that are run from the top 2 inches of soil taken from next to seedlings of each species, and then tests run, data only, in a bar graph format.

A second soil sample is taken from bare soil within 10 feet of the first sample, to confirm the threshold levels set by the first soil sample. Each soil sample needs to be a one-quart ziplock bag full, which has been sifted through a inch mesh screen to remove any rocks or vegetation matter.

Waypoint Lab protocols and the sample form to send in with the soil samples for the A-17 and A-19-2 tests, can be downloaded at

Waypoint Lab: 4741 East Hunter Ave., Suite A
Phone: (714) 282-8777

Names in bold = Suggested list of first species to test.

! = Pseudomonas bacteria host plant, that help create the rain clouds--see Discover Magazine 2012 article


Arrowfeather Threeawn -- Aristida purpurascens

Big Bluestem -- Andropogon gerardii

Blue grama -- Bouteloua gracilis

Bottlebrush grass -- Elymus hystrix

Broad leaf wood-oats -- Chasmanthium latifolium

Buffalo grass -- Buchloe dactyloides

Canada Wild rye -- Elymus canadensis

Eastern gamagrass -- Tripsacum dactyloides

Forktip threeawn -- Aristida basiramea

Hairy woodland brome -- Bromus pubsecens

Indian grass -- Sorhastrum nutans

Little bluestem -- Schizachyrium scoparium

Needle and thread -- Stipa comata

Plains bluestem -- Bothriochloa ischaemum

Plains muhly -- Muhlenbergia cuspidata

Prairie cordgrass -- Spartina pectinata

Prairie sandreed -- Calamovilfa longifolia

Prairie threeawn -- Aristida oligantha

Purple threeawn -- Aristida purpurea

Sand bluestem -- Andropogon hallii

Sand dropseed -- Sporobolus cryptandrus

Sand lovegrass -- Eragrostis trichodes

Sideoats grama -- Bouteloua curtipendula

Silver bluestem -- Bothriochloa laguroides subsp. torreyana

Six weeks fescue -- Vulpia octoflora

Squirreltail -- Elymus elymoides

Switchgrass -- Panicum virgatum

Tall dropseed -- Sporobolus compositus

Texas bluegrass -- Poa arachnifera

Vine mesquite -- Panicum obtusum

Virginia wild rye -- Elymus virginicus

Western wheatgrass -- Pascopyrum smithii


American vetch ­ Vicia Americana
Ashy Goldenrod ­ Solidago mollis
Big flowered coreopsis ­ Coreopsis grandiflora
Black footed daisy ­ Melampodium leucanthum
Breadroot Scurf-pea ­ Psoralea esculenta
Butterfly ­ Asclepias tuberosa
Camphorweed ­ Heterotheca subaxillaris
Canada goldenrod ­ Solidago Canadensis
Common sunflower ­ Helianthus annuus
Curly cup gumplant ­ Grindelia squarrosa
False Indigo ­ Amorpha fruticosa
Missouri goldenrod ­ Solidago missouriensis
Narrow leaved milkweed ­ Asclepias stenophylla
Plains coreopsis ­ Coreopsis tinctoria
Prairie phlox ­ Phlox pilosa
Prince's Plume ­ Stanleya pinnata
Sawtooth sunflower ­ Helianthus grosseserratus
Showy goldenrod ­ Solidago speciosa
Western yarrow ­ Achillea millefolium


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Updated January 1, 2019