Dracocephalum ruyschianum Blue Dragon

Blue Dragon Dracocephalum

Dracocephalum ruyschianum ‘Blue Dragon’ — commonly called Blue Dragonhead — is a compact, long-blooming perennial valued for its vivid spikes of rich violet-blue flowers that appear in early to mid-summer, with potential for light rebloom into late summer. Narrow, lance-shaped, aromatic green foliage forms a neat, upright clump and typically remains green until frost with little fall color. Its tidy habit and saturated color make it a standout in sunny borders, rock gardens, and pollinator plantings.

Mature Size:
Width: 12–18 in
Height: 12–18 in (to ~20 in in bloom)

USDA Zones: 3a–7b
Light: Full sun
Soil: Well-drained soils; prefers average to slightly dry conditions
Water: Low to moderate; drought tolerant once established
Wildlife: Attracts bees and butterflies

Features & Landscape Uses:
Form: Upright, clump-forming perennial with a clean, compact habit
Excellent for rock gardens, edging, cottage gardens, and pollinator plantings
Works well in small spaces and mass plantings for strong summer color
Low maintenance and deer resistant

Maintenance:
Deadhead to encourage additional blooms
Cut back after flowering to maintain tidy form
Divide clumps every few years if needed

Plant type

Perennial

Height

12-18''

Width

12-18"

Hardiness zones

3–7

Sunlight

Full Sun

Growth rate

Fast

Bloom time

Early Fall, Fall, Late Summer, Summer

Flower color

Blue

Leaf color

Green

Attracts

Bees, Butterflies

Soil

Dry Area, Well Drained

Landscape use

Hedge, Mass Planting, Rock Garden

Shape

Clump, Upright

Fragrant

Yes

Deer resistant

Yes

Drought tolerant

Yes