Taxonomy

Division:

Magnoliophyta | - Flowering plants

Family:

Rubiaceae

Genus:

Houstonia

Species:

Houstonia purpurea

USDA Symbol:

HOPU2

Growth Characteristics

Life Cycle:

Perennial

Growth Habit:

Forb/herb

Height:

45 cm

Light Requirements:

Full Sun

Drought Tolerance:

Medium

Bloom Months:

apr,may,jun,jul

Bloom Colors:

purple, lavender, white

Wildlife Benefits

Bees:

★☆☆☆☆ Documented bee visitation (GBIF)

Butterflies & Moths:

★☆☆☆☆ Documented Lepidoptera association (GBIF)

Garden & Ecology Notes

Wildlife Value:

butterflies, small bees

Deer Resistant:

Yes

Soil Requirements

Soil Type:

rich, well-drained loamy soil

pH:

5.5 - 7.0 (slightly acidic to neutral)

Drainage:

excellent drainage required

Moisture:

consistently moist

Notes:

prefers open woods and meadows

Propagation & Germination

Stratification:

Cold/moist stratification required — 30–60 days

Germination Time:

14–30 days

Notes:

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

The above propagation data sourced from Claude AI