Prairie Junegrass (Koeleria macrantha)

Common names:
Give a thumbs up Prairie Junegrass
Give a thumbs up Junegrass
Give a thumbs up June Grass

General Plant Information (Edit)
Plant Habit: Grass/Grass-like
Life cycle: Perennial
Sun Requirements: Full Sun
Water Preferences: Mesic
Dry Mesic
Dry
Soil pH Preferences: Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
Minimum cold hardiness: Zone 3 -40 °C (-40 °F) to -37.2 °C (-35)
Maximum recommended zone: Zone 8b
Plant Height: 1 to 3 feet
Plant Spread: 1 to 2 feet
Leaves: Deciduous
Flowers: Showy
Flower Color: Other: silvery green
Flower Time: Late spring or early summer
Suitable Locations: Beach Front
Xeriscapic
Resistances: Deer Resistant
Pollution
Drought tolerant
Pollinators: Wind
Miscellaneous: Tolerates poor soil
Monoecious

newly planted mail order plant

Photo gallery:
Location: Downingtown, PennsylvaniaDate: 2011-09-03newly planted mail order plant
By ILPARW
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Photo Courtesy of Prairie Nursery. Used with Permission
By Joy
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Photo Courtesy of Prairie Nursery. Used with Permission
By Joy
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Photo Courtesy of Prairie Nursery. Used with Permission
By Joy
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Comments:
Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Feb 20, 2019 1:08 PM

This Junegrass has a native range from southern Ontario to southern British Columbia down to northern Mexico and spots in Texas up to the Great Lakes Region with a few spots in Ohio, Pennsylvania, and New York, growing in dry soils. It is offered by some native plant nurseries as Blue Moon Nursery in Minnesota & Prairie Nursery in Wisconsin. I bought one from Prairie Nursery and planted it in the backyard prairie garden. However, it did not adapt to my good quality clay soil and it died out. It does not grow in even good clay soils. It likes full sun and either sandy or gravely soils, maybe a good silt topsoil would be alright. It is a cool season clump bunch grass that grows during cool temperature times and goes dormant during summer heat. It can self-sow in dry soil places. It bears its lustrous, silvery-green grass flower spikes in May-June. It has been recommended as a green roof plant.

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