Dracocephalum ruyschiana
Siberian dragon's head, Northern dragon's head
Also known as Dracocephalum ruyschianum
- Height × spread
- 0.6m × 0.3m
- Position
- Tolerates full sun, likes part shade, tolerates light shade
- Hardiness
- Colder than -20C (RHS H7)
- Flowers
- Summer
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This plant has long, slender, leaves with the edges rolled over, giving it a spiky look. It flowers from mid to late summer when it puts forth short flowering spikes that carry blue-purple flowers up their length. This reaches around 60cm (2ft) height with 30cm (12in) spread.
- Flower colour
- Purple
- Foliage colour
- Green
- Variegated
- No
- Scent
- No
- Shape
- Dome
- Height
- 0.6m
- Spread
- 0.3m
- Season of interest
- Summer
- Flowers in
- Summer
- Evergreen
- Deciduous
- Garden style
- Small scale garden
- Sun or shade
- Tolerates full sun, likes part shade, tolerates light shade
- Soil type
- Chalk, Clay, Loam (normal), Poor soil
- Soil pH
- All types
- Drainage
- Moisture retentive soil, Well drained soil
- Hardiness
- Colder than -20C (RHS H7)
- Borders & containers
- Borders
- Hazards
- No
Spring
Spring - late · Outdoors
Feed with slow release fertiliser
Apply a general purpose slow release fertiliser, spreading it around the root area of the plant as it is coming into growth. (Or apply a liquid feed at regular intervals throughout the growing season.)
This is a simple way to provide a nutrient boost as a single annual procedure.
Spring-Autumn · Outdoors
Water to keep the soil moist
For best results, this plant needs soil that is always moist. Water deeply and regularly as soon as soil appears dry. Even for established plants in the ground, a dry week can cause problems with some soils. Check plants in pots more often, especially in hot weather. Or install an automatic irrigation system which will do the hard work for you, even when you are away on holiday.
Without regular watering some plants never fully regain their beauty.