Family: Ranunculaceae (ra-nun-kew-LAY-see-ee) (Info)
Genus: Clematis (KLEM-uh-tiss) (Info)
Species: tangutica (tan-GOO-tik-uh) (Info)
Cultivar: Helios
» View all varieties of Clematis  One vendor has this plant for sale.
4 members have or want this plant for trade. Group:
Unknown - Tell us
Height:
12-15 ft. (3.6-4.7 m)
Spacing:
6-8 ft. (1.8-2.4 m)
Hardiness:
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)
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)
Bloom Color:
Bright Yellow
Flower Fragrance:
No fragrance
Bloom Shape:
Single
Nodding
Bloom Diameter:
Unknown - Tell us
Bloom Time:
Mid Summer
Late Summer/Early Fall
Sun Exposure:
Full Sun
Sun to Partial Shade
Other details:
Average Water Needs; Water regularly; do not overwater
Self-sows freely; deadhead if you do not want volunteer seedlings next season
Danger:
Unknown - Tell us
Pruning Groups:
Group 3 - Summer/Fall bloomers; prune hard in early spring
Patent Information:
Unknown - Tell us
Propagation Methods:
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
From seed; sow indoors before last frost
Seed Collecting:
Unknown - Tell us
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