Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Hypericaceae

Genus:

Hypericum

Species:

Hypericum gramineum

USDA Symbol:

HYGR2

Growth Characteristics

Life Cycle:

Annual | Perennial

Growth Habit:

Forb/herb

Height:

50 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

jun,jul,aug,sep

Bloom Colors:

yellow

Keystone Species Ranking

Caterpillar Keystone:

★★★☆☆ Butterfly & moth species supported by this genus (NWF)

Garden & Ecology Notes

Wildlife Value:

bees

Deer Resistant:

Yes

Fire Ecology:

Fire adapted — tolerates or benefits from fire

Fire Notes:

Resprouts from rootstock following fire; common in fire-prone grasslands.

Soil Requirements

Soil Type:

sandy, well-drained, nutrient-poor soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

dry to moderate

Notes:

Commonly found in open, sunny areas

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–90 days

Germination Time:

14–60 days

Notes:

Seeds require light for germination; surface sow and do not cover.

The above propagation data sourced from Claude AI