
© Rebecca Reader-Lee · CC BY-NC
iNaturalist — CC, credited & licensed per image

Poaceae family
Thurber's Needlegrass Achnatherum thurberianum
Native
Deer-resistant — Low palatability to browsing deer. Usually passed over, but no plant is truly deer-proof when food is scarce.
Thurber's Needlegrass is a perennial grass native to the lower 48 states. It grows to 2 ft and blooms Apr in part shade – shade, with brown fruit.
More about this plant
Eriocoma thurberiana is a species of grass known by the common name Thurber's needlegrass. It is native to the western United States, where it occurs from Washington to California and east to Montana and Wyoming. Wikipedia →
Growing & care
USDA PLANTS · TRY Conditions
Sources · Conditions
USDA PLANTS — Sun · Soil & moisture
USDA — SoilPH — Soil pH
USDA PLANTS (DwCA, Zenodo 17903503) — Fertility Requirement / Soil Adaptation — Fertility need · Adapts to
USDA — Temp-Min °F — Hardiness
- Sun
- Part shade – shade
- Soil & moisture
- Low moisture
- Soil pH
- 6–7.5
- Fertility need
- Low
- Adapts to
- Coarse (sandy), Medium (loam)
- Hardiness
- USDA zone 5+
Size & form
Sources · Size & form
USDA PLANTS (DwCA, Zenodo 17903503) — Height, Mature — Height
USDA PLANTS (DwCA, Zenodo 17903503) — Growth Rate / Spread / Growth Form / Lifespan / Active Growth Period / Seed Period — Spread · Growth rate · Growth form · Active growth
USDA PLANTS — Lifespan
TRY Plant Trait Database (CC BY 4.0) · USDA PLANTS — Foliage
USDA PLANTS (DwCA, Zenodo 17903503) — Fruit/Seed Color / Fruit Persistence — Fruit
- Height
- 2 ft
- Spread
- None — clumping
- Growth rate
- Moderate
- Growth form
- Bunch
- Lifespan
- Perennial · moderate
- Foliage
- Broadleaf · fine texture
- Active growth
- Spring & summer
- Fruit
- Brown
In the garden
Sources · In the garden
USDA PLANTS (DwCA, Zenodo 17903503) — Propagation Method / Commercial Availability — Propagate by · In the trade
USDA PLANTS (DwCA, Zenodo 17903503) — Germination (cold stratification) — Seed starting
USDA PLANTS — Seed Period — Seeds ripen
USDA PLANTS (DwCA, Zenodo 17903503) — Foliage Texture / Browse Palatability / Resprout — Deer browsing · Resprouts if cut
- Propagate by
- Seed
- Seed starting
- No stratification needed
- Seeds ripen
- Spring – Summer seed-collection / harvest window
- In the trade
- Field collection only
- Deer browsing
- Low often deer-resistant
- Resprouts if cut
- No
Herb layer — Sits in the herb of a layered food forest or polyculture.Open guide →
derived roles The garden year bloom → fruit → fall colour
J
F
M
A
M
J
J
A
S
O
N
D
Bloom
Bloom (the flower's colour)
Bloom · Apr — USDA PLANTS (DwCA, Zenodo 17903503) — BloomPeriod
When to sow · for your area
Sow timing keys off your local last- and first-frost dates.
Species characteristics from USDA PLANTS (public domain) + TRY (CC BY) — general guidance, not a
guarantee for your exact site. Deer "browsing" is documented palatability, not a deer-proof claim.
Sources for this entry (22) Open & cited
[01] Scientific name & family — USDA PLANTS (DwCA, Zenodo 17903503)
[02] Growth habit & duration — USDA PLANTS (DwCA, Zenodo 17903503)
[03] Native status & distribution — USDA PLANTS (DwCA, Zenodo 17903503)
[04] Common name — USDA PLANTS (via GBIF)
[05] Bloom period — USDA PLANTS (DwCA, Zenodo 17903503) — BloomPeriod
[06] Height — USDA PLANTS (DwCA, Zenodo 17903503) — Height, Mature
[07] Sun / shade — USDA PLANTS (DwCA, Zenodo 17903503) — ShadeTolerance
[08] Soil & moisture — USDA PLANTS (DwCA, Zenodo 17903503) — MoistureUse / SoilPH
[09] Cold hardiness (zone) — USDA PLANTS (DwCA, Zenodo 17903503) — Temperature, Minimum °F
[10] Toxicity — USDA PLANTS (DwCA, Zenodo 17903503) — HumanLivestockToxicity
[11] Growth & form — USDA PLANTS (DwCA, Zenodo 17903503) — Growth Rate / Spread / Growth Form / Lifespan / Active Growth Period / Seed Period
[12] Soil & fertility — USDA PLANTS (DwCA, Zenodo 17903503) — Fertility Requirement / Soil Adaptation
[13] Landscape traits — USDA PLANTS (DwCA, Zenodo 17903503) — Foliage Texture / Browse Palatability / Resprout
[14] Propagation & availability — USDA PLANTS (DwCA, Zenodo 17903503) — Propagation Method / Commercial Availability
[16] Seed germination — USDA PLANTS (DwCA, Zenodo 17903503) — Germination (cold stratification)
[17] Invasive / introduced status — USDA PLANTS (DwCA, Zenodo 17903503) — native status
[18] Photos — iNaturalist — CC, credited per image
[19] Description — Wikipedia (CC BY-SA)
[20] Ecological value — GloBI
[21] Conservation rank — NatureServe Explorer (CC BY)
[22] Foliage — TRY Plant Trait Database (CC BY 4.0)
Spot an error or have a better photo? Every field links to its source, and the whole dataset is open.
Cite this page Open data, please attribute
PlantKey’s data is open under CC BY-SA 4.0 — free to reuse and adapt, with attribution and the same licence. Photos keep their own per-image licence + credit (see Sources above).
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