Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Poaceae

Genus:

Calamagrostis

Species:

Calamagrostis holmii

USDA Symbol:

CAHO

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Graminoid

Height:

120 cm

Light Requirements:

Full Sun

Drought Tolerance:

Low

Bloom Months:

jun,jul,aug

Garden & Ecology Notes

Wildlife Value:

birds, small mammals

Fall Color:

golden-tan

Soil Requirements

Soil Type:

moist, well-drained, nutrient-poor soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

consistently moist

Notes:

Commonly found in alpine and subalpine meadows.

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

Requires light for germination; surface sow or barely cover seeds. Maintains moist conditions throughout.

The above propagation data sourced from Claude AI