Northern Dragonhead, Siberian Dragon's Head 'Blue Moon'

Dracocephalumruyschiana

Family
Lamiaceae (lay-mee-AY-see-ee)
Genus
Dracocephalum (dray-koh-SEF-uh-lum)
Species
ruyschiana (ru-ee-schee-AH-na)
Synonym
Dracocephalum ruyschianum
Sun Exposure
Full Sun
Sun to Partial Shade
Foliage
Deciduous
Herbaceous
Height
18-24 in. (45-60 cm)
Spacing
12-15 in. (30-38 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)
Bloom Color
Dark Blue
Bloom Time
Mid Summer
Late Summer/Early Fall
Other Details
Category
Alpines and Rock Gardens
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
Patent Information
Propagation Methods
From herbaceous stem cuttings
From seed; stratify if sowing indoors
From seed; sow indoors before last frost
Seed Collecting
Regional

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

Oneonta, New York

Tullahoma, Tennessee

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Gardener's Notes:

2
positives
0
neutral
0
negative
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M
Tullahoma, TN | May 2017 | positive

Here in zone 7a mine is growing in a raised bed with a southern exposure in bright, dappled shade between Echinacea pallida and a dwarf M...Read More

C
Oneonta, NY (Zone 4a) | March 2012 | positive

Easy to grow in my zone 4/5 garden at 2300 feet elevation. Purchased original plants from Bluestone Perennials. For me the height is abou...Read More

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