Family: Iridaceae (eye-rid-AY-see-ee) (Info)
Genus: Sisyrinchium (sis-ee-RINK-ee-um) (Info)
Species: atlanticum (at-LAN-tik-um) (Info)
 4 members have or want this plant for trade.
Category:
Alpines and Rock Gardens
Perennials
Height:
under 6 in. (15 cm)
Spacing:
3-6 in. (7-15 cm)
6-9 in. (15-22 cm)
Hardiness:
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)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
Sun Exposure:
Full Sun
Sun to Partial Shade
Danger:
N/A
Bloom Color:
Dark Blue
Blue-Violet
Violet/Lavender
White/Near White
Bloom Time:
Mid Spring
Late Spring/Early Summer
Mid Summer
Late Summer/Early Fall
Foliage:
Herbaceous
Other details:
May be a noxious weed or invasive
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Suitable for growing in containers
Soil pH requirements:
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information:
Unknown - Tell us
Propagation Methods:
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From seed; direct sow outdoors in fall
Seed Collecting:
Bag seedheads to capture ripening seed
Allow pods to dry on plant; break open to collect seeds
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
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