Species, Wild Rose, Prickly Rose

Rosaacicularis subsp. sayi

Family
Rosaceae (ro-ZAY-see-ee)
Genus
Rosa (RO-zuh)
Synonym
Rosa bourgeauiana
Rosa acicularis var. sayana
Rosa collaris
Rosa engelmannii
Rosa sayi
Spacing
36-48 in. (90-120 cm)
Hardiness
24-36 in. (60-90 cm)
Bloom Time
USDA Zone 2a: to -45.5 °C (-50 °F)
USDA Zone 2b: to -42.7 °C (-45 °F)
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
Bloom Color
Late Spring/Early Summer
Mid Summer
Other Details
Propagation Methods
Soil pH requirements
Flower Fragrance
Bloom Shape
Patent Information
By dividing the rootball
From woody stem cuttings
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Other Details
Pruning Instructions
Foliage Color
Bloom Characteristics
Water Requirements
Where to Grow
Regional

This plant is said to grow outdoors in the following regions:

Halifax, Massachusetts

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Gardener's Notes:

0
positive
0
neutral
0
negative
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