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Herbaceous Perennial

Dracocephalum argunense 'Fuji Blue'

dragonhead 'Fuji Blue'

A clump-forming perennial to 30cm tall, with narrowly linear, rosemary-like leaves. In midsummer it produces tubular, deep violet-blue flowers with a lighter margin; these are held in whorls on softly hairy flowerspikes

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Ultimate height

0.1–0.5 metres

Time to ultimate height

2–5 years

Ultimate spread

0.1–0.5 metres

Chalk

Loam

Sand

Moisture

Well–drained

pH

Acid, Alkaline, Neutral

	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Full sun
Partial shade

Aspect

East–facing or South–facing or West–facing

Exposure

Sheltered

Drought resistance

Yes

Hardiness
Hardiness ratings
All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets
H1a: under glass all year (>15C)
H1b: can be grown outside in the summer (10 - 15)
H1c: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20)

Botanical details

Family: Lamiaceae
Native to GB / Ireland: No
Foliage: Deciduous
Habit: Clump forming
Genus: A genus of around 60 to 70 species of flowering annuals, perennials and dwarf evergreen shrubs native to temperate parts of the Northern Hemisphere. Plants within this species have aromatic green foliage which can vary from needle-shaped to nettle-like and 2-lipped, sage-like tubular flowers in shades of purple, blue or white
Name status: Accepted

How to grow

Cultivation

Grow in well-drained, moderately fertile soil in full sun with some midday shade. Drought tolerant once established

Propagation

Propagate by division or basal cuttings in spring

Suggested planting locations and garden types

City and courtyard gardens
Cottage and informal garden
Rock garden
Banks and slopes
Garden edging

Pruning

Cut old stems back to ground level in autumn or early spring

Pests

Generally pest-free

Diseases

Generally disease-free

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