Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Rosa (RO-zuh) (Info)
Species: acicularis subsp. sayi
Synonym:Rosa bourgeauiana
Synonym:Rosa Rosa acicularis var. sayana
Synonym:Rosa collaris
Synonym:Rosa engelmannii
Synonym:Rosa sayi
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Class:
Shrub
Height:
36-48 in. (90-120 cm)
Spacing:
24-36 in. (60-90 cm)
Hardiness:
USDA Zone 2a: to -45.5 °C (-50 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
Bloom Color:
Dark red (dr)
Mauve and mauve blend (mb)
Bloom Shape:
Single
Flower Fragrance:
Very Fragrant
Bloom Time:
Late Spring/Early Summer
Mid Summer
Habit:
Shrub
Patent Information:
Non-patented
Other Details:
Shade-tolerant
Susceptible to black spot
Susceptible to mildew
Susceptible to rust
Stems are very thorny
Sets hips
Pruning Instructions:
Blooms on old wood; prune after flowering
Soil pH requirements:
6.6 to 7.5 (neutral)
Propagation Methods:
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
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