Crimsoneyed Rosemallow

Hibiscus moscheutos

Native to:
Canada, Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Malvaceae
Genus:
Hibiscus
Species:
Hibiscus moscheutos
USDA Symbol:
HIMO

Growth Characteristics

Life Cycle:
Annual | Perennial
Growth Habit:
Forb/herb , Subshrub
Height:
240 cm
Light Requirements:
Full Sun,Part Shade
Drought Tolerance:
Low
Bloom Months:
jul,aug,sep
Bloom Colors:
white, pink, red, rose

Wildlife Benefits

Bees:
★☆☆☆☆ Documented bee visitation (GBIF)
Butterflies & Moths:
★☆☆☆☆ Documented Lepidoptera association (GBIF)
Caterpillars:
★★☆☆☆ Recorded caterpillar host plant (HOSTS Database)

Keystone Species Ranking

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

Host Plant for Caterpillars

Acontia delecta, Bagisara brouana, Chionodes hibiscella, corn earworm (Helicoverpa zea), Io moth (Automeris io), straight lined mallow moth (Bagisara rectifascia)

Reported Fauna Sightings

Bees: American bumble bee (Bombus pensylvanicus), Ptilothrix bombiformis Moths:Rusicada privata

Garden & Ecology Notes

Wildlife Value:
bees, butterflies, hummingbirds
Salt Tolerant:
Yes

Soil Requirements

Soil Type:
rich, moisture-retentive loamy soil
pH:
6.0 - 7.0 (slightly acidic to neutral)
Drainage:
tolerates poor drainage
Moisture:
consistently moist
Notes:
Prefers wetlands and marshy areas

Propagation & Germination

Stratification:
None required
Scarification:
Seed coat scarification required before sowing
Germination Time:
14–30 days
Notes:
Scarification or soaking in warm water for 24 hours improves germination. Seeds germinate best at 70-75°F.

The above propagation data sourced from Claude AI

Pre-treatment: Single-step cold-moist stratification for temperate woodland species. for 60–120 days

Source: Claude AI

ORGHPS Germination Guide: Sow @ 20C. Germinates within 3 months. Requires scarification. | Requires soaking 24-48 hrs; discard floaters.

Source: Ontario Rock Garden & Hardy Plant Society