General Plant Information (Edit)
Plant Habit: Grass/Grass-like
Sun Requirements: Full Sun to Partial Shade
Partial or Dappled Shade
Water Preferences: Mesic
Dry Mesic
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 7b
Plant Height: 2 to 5 feet
Flowers: Showy
Flower Time: Summer
Late summer or early fall
Fall
Late fall or early winter
Wildlife Attractant: Birds
Resistances: Tolerates dry shade
Drought tolerant

Image
Botanical names
  • Accepted: Elymus hystrix
  • Synonym: Hystrix patula

Photo Gallery
Location: Jenkins Arboretum in Berwyn, Pennsylvania
Date: summer 2017
grasses in bloom
Location: Downingtown, Pennsylvania
Date: 2022-07-23
three plants I placed in the peninsula border in bloom
Location: Birdsboro, Pennsylvania at the Daniel Boone Homestead
Date: 2023-07-21
wild colony in well-drained, neutral soil near American Basswood
Location: Reading, Pennsylvania
Date: 2023-07-04
a wild colony along a walking-bicycle trail
Location: Downingtown, Pennsylvania
Date: 2020-06-05
grass flowers in June

Photo Courtesy of Prairie Nursery. Used with Permission
  • Uploaded by Joy

Photo Courtesy of Prairie Nursery. Used with Permission
  • Uploaded by Joy

Photo Courtesy of Prairie Nursery. Used with Permission
  • Uploaded by Joy
Location: Morton Arboretum in Lisle, Illinois
Date: 2015-06-19
plant in bloom
Location: Glen Ellyn, Illinois
Date: 2016-07-20
grasses planted in naturalistic landscape
Location: Downingtown, Pennsylvania
Date: 2020-04-08
the grass crown green in early spring
Location: Downingtown, Pennsylvania
Date: 2019-06-05
top of the grass I planted last year from a pot
Location: Downingtown, Pennsylvania
Date: 2020-06-05
full height plant in bloom
Comments:
  • Posted by ILPARW (southeast Pennsylvania - Zone 6b) on Feb 8, 2018 12:46 PM concerning plant:
    This lovely woodland grass native to eastern North America has exquisite seedheads actually resembling a bottlebrush. It is a cool season grass that begins growth in April. It is perfect for planting under oaks or other deciduous trees that allow some light through to the ground, or it is good for forest edges that receive no more than a half day of direct sun, or good for partial shade in gardens. It can tolerate fairly deep shade, juglone from Black Walnuts, air pollution, and not really eaten by deer or rabbits. It grows well in any well-drained soil and in nature is also found in rich, moist floodplains. The flower-seed stalks are good for flower arranging. It is offered by most native plant nurseries and some mail order nurseries, but not by many conventional nurseries unless very large and diverse. So far, it is not commonly planted or known. It is soft to the touch, fast growing, and easy to work with. It is not a highly ornamental plant, but it sure has great texture. I bought three small plants in pots from a native plant nursery in May of 2018 and planted them in a part-shaded area at my house foundation, and they are growing quickly and blooming in June 2019. During the mild winter of 2019-2020 the plants stayed green low to the ground and began growth in late March to be a nice, good-sized green clump by mid-April. In June 2020 the largest plant is full-sized at about 5 feet high and two feet wide. The three plants have self-sown a good amount in the part-shade area so that several other plants are coming up in 2020, and I transplanted several into pots. There are supposed to be two varieties of this species: E. hystrix hystrix that has lemmas and leaves glabrous (hairless and smooth) or scabrous (rough or gritty) and E. hystrix bigeloviana that has lemmas and leaves appressed-pubescent (soft short hairs close to stem) to striose (stiff, straight hairs).

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