Rocky Mountain Natives for a

Wyoming Green Roof

Karen L. Panter, Ph.D., C.P.H.Extension Horticulture and

Specialty Crops

Department of Plant Sciences

Brand new Berry Biodiversity Conservation Center,

University of Wyoming campus, Laramie

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Green roof space on Berry Biodiversity Conservation Building.

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Some plants will be

purchased as liners,

others grown from seed

• Agropyron smithii – western wheatgrass

• Bouteloua graciis – blue grama

• Oryzopsis hymenoides – Indian rice grass

• Schizachyrium scoparium – little bluestem

• Antennaria anaphaloides - pussytoes

• Eriogonum umbellatum – wild buckwheat

• Oenothera caespitosa – evening primrose

• Sphaeralcea coccinia – scarlet globemallow

• Coryphantha vivipara – pincushion cactus

• Sedum lanceolatum – stonecrop

• Yucca glauca – yucca

• Cercocarpus intricatus – mountain mahogany

• Krascheninikovia lanata – winterfat

• And many more…

The list as liners includes

Grasses

Forbs

Succulents

Shrubs

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These most likely to be

grown from seeds

• Aquilegia laramiensis

• Arctostaphylos

coloradensis

• Arenaria hookeri

• Artemisia pedatifida

• Artemisia spinescens

• Astragalus alpinus

• Calochortus nuttallii

• Campanula

rotundifolia

• Delphinium geyeri

• Dodecatheon jeffreyi

• Draba oligosperma

• Erigeron pinnatisectus

• Eriogonum ovalifolium

• Hymenoxys acaulis

• Leucocrinum

montanum

• Lupinus aridus

• Oxytropis nana

• Penstemon eriantherus

• Phlox hoodii

• Physaria eburnifolia

• Silene acaulis

• Townsendia hookeri

The four in bold are highlighted

today…

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Calochortus nuttallii• Liliaceae family

• Sego lily

• Seeds require 6 weeks cold stratification

• Cover during germination

• Germination will take about one month after

cold requirement is satisfied

• One we’re growing is from Fremont County,

Wyoming at about 6,500 feet

• Forms bulbs

Campanula rotundifolia• Campanulaceae (Lobeliaceae) family

• Bluebell bellflower

• Seeds require 4 weeks cold stratification

• Expose seeds to light during germination

• Germination about one month after cold

requirement is satisfied

• Seed source is Gilpin County, Colorado at

about 10,800 feet

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Draba oligosperma• Brassicaceae family

• Seeds require 4 weeks of cold stratification

• Expose seeds to light for germination

• Germination occurs about one month after

cold requirement is satisfied

• Seed source is Carbon County, Wyoming at

about 7,500 feet

Silene acaulis• Caryophyllaceae family

• Seeds have no stratification requirement

• Expose seeds to light for germination

• Seeds will germinate over several weeks

• Seed source is Albany County, Wyoming at

about 10,000 feet

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Most plants to be installed in June.

Some of those grown from seeds will be

planted out in July or August.

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Karen Panter

307-766-5117

kpanter@uwyo.edu

wyohort on

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