Woods' Rose

Rosa woodsii

Native to:
Albania, Canada, Mexico, United States

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Taxonomy

Division:
Magnoliophyta | - Flowering plants
Family:
Rosaceae
Genus:
Rosa
Species:
Rosa woodsii
USDA Symbol:
ROWO

Growth Characteristics

Life Cycle:
Perennial
Growth Habit:
Subshrub
Height:
200 cm
Light Requirements:
Full Sun,Part Shade,Shade
Drought Tolerance:
High
Bloom Months:
may,jun,jul
Bloom Colors:
pink
Landscaping Shrub:
Yes

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

Ectoedemia marmaropa, White-lined sphinx moth (Hyles lineata)

Reported Fauna Sightings

Bees: Black-tailed bumble bee (Bombus melanopygus), Brown-belted bumble bee (Bombus griseocollis), Central bumble bee (Bombus centralis), Fuzzy-horned bumble bee (Bombus mixtus), Half-black bumble bee (Bombus vagans), Hunt's bumble bee (Bombus huntii), Red-belted bumble bee (Bombus rufocinctus), Two-form bumble bee (Bombus bifarius), Western bumble bee (Bombus occidentalis), Yellow bumble bee (Bombus fervidus), Yellow head bumble bee (Bombus flavifrons)

Garden & Ecology Notes

Wildlife Value:
birds, bees, butterflies, small mammals
Fragrant:
Yes
Fall Color:
yellow, orange, red
Fire Ecology:
Fire adapted — tolerates or benefits from fire
Fire Notes:
Resprouts vigorously from root crown following fire. Often increases in density after burns.

Soil Requirements

Soil Type:
well-drained, sandy or loamy soil
pH:
6.0 - 7.5 (slightly acidic to neutral)
Drainage:
good drainage required
Moisture:
dry to moderate
Notes:
adaptable to various soil types in native range

Propagation & Germination

Stratification:
Cold/moist stratification required — 90–120 days
Scarification:
Seed coat scarification required before sowing
Germination Time:
30–365 days
Notes:
Germination is erratic and may take up to a year. Scarification followed by cold stratification improves germination rates.

The above propagation data sourced from Claude AI

Pre-treatment: Seeds are soaked in a 3:1 water/3% hydrogen peroxide solution for 10 minutes to 24 hours, followed by a 72 hour running water rinse. Seeds are then placed in fine mesh bags and layered in moist peat moss in ventilated containers for warm and cold stratification. Warm stratification is for 50 to 60 days at 20°C (68°F) and cold stratification is for 90 to 110 days at 1 to 3°C (33.8 to 37.4°F). Stratification medium is re-moistened as needed. If mold is evident, seeds should be treated with 1% hydrogen peroxide.

Establishment: Seeds are collected when hips turn red in September and October. Gloves and thick pants are recommended when collecting to protect from prickles. Also, take precaution to prevent mold in field transport of fruits. Some protocols suggest natural stratification by planting seeds in the fall in a thin layer of sand on mulched field beds. Conflicting information exists regarding the exact duration and temperature for stratification.

Source: npn.rngr.net

ORGHPS Germination Guide: Use repeated cycles of 20°C, then 4°C for 3 months each. Germination is very prolonged. Pulpy coat inhibits germination. Remove by soaking and rinsing in clean water for approximately 7 days. Discard water. * soak in hot water for 24 hours to scarify

Source: Ontario Rock Garden & Hardy Plant Society