Northern Dragonhead, Siberian Dragon's Head

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
Allow seedheads to dry on plants; remove and collect seeds
Properly cleaned, seed can be successfully stored
Regional

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

Birmingham, Alabama

Knik-Fairview, Alaska

Lakes, Alaska

Meadow Lakes, Alaska

Tanaina, Alaska

Wasilla, Alaska

New Hope, Pennsylvania

Wilkes Barre, Pennsylvania

Santaquin, Utah

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Gardener's Notes:

1
positive
1
neutral
0
negative
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T
T
Birmingham, AL (Zone 8a) | October 2014 | positive

Leaves give off a pleasant lemon-pine scent when rubbed.

Flowers randomly throughout the growing season.

Re...Read More

B
B
Baa
| November 2001 | neutral

A small, perennial from Central Europe to Siberia.

Has linear, mid green leaves on erect slightly hairy stems. Bears hood...Read More

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