Asclepias similis

Asclepias similis

Native to:
El Salvador | Guatemala | Honduras | Mexico | Mexico Central, Mexico Gulf, Mexico Northeast, Mexico Southeast, Mexico Southwest | Nicaragua

📍 View on iNaturalist →

Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Apocynaceae
Genus:
Asclepias
Species:
Asclepias similis

Growth Characteristics

Growth Habit:
Forb/herb
Height:
90 cm
Drought Tolerance:
High
Bloom Months:
may,jun,jul,aug
Bloom Colors:
white, pink

Keystone Species Ranking

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

Garden & Ecology Notes

Wildlife Value:
butterflies, bees, birds
Deer Resistant:
Yes
Fragrant:
Yes
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from perennial rootstock after fire. Benefits from periodic fire which reduces woody competition in prairie habitats.

Source: Claude claude-sonnet-4-5-20250929 Batch

Propagation & Germination

Stratification:
Cold/moist stratification required — 30–60 days
Germination Time:
7–21 days
Notes:
Seeds require light for germination. Surface sow or barely cover. Germination rates improve with cold stratification.

Source: Claude claude-sonnet-4-5-20250929 Batch

ORGHPS Germination Guide: Should not need chilling

Source: Ontario Rock Garden & Hardy Plant Society