Dracocephalum rupestre
Rock-loving dragonhead, Dragonhead
- Height × spread
- 0.9m × 0.9m
- Position
- Full sun
- Hardiness
- Very cold to -20C (RHS H6)
- Flowers
- Summer, Autumn
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This has tubular blue flowers that are widely spaced on upright flowering stalks. The flowers are held in black calyces. The flowering stems rise above heart-shaped green leaves with impressed veins that have some visual similarity to 'Brunnera'. This flowers in late summer and early autumn. It is found growing naturally in rocky places and could be a candidate for a gravel garden as well as among herbaceous plants.
- Flower colour
- Blue, Mauve
- Foliage colour
- Green
- Variegated
- No
- Scent
- No
- Shape
- Cube
- Height
- 0.9m
- Spread
- 0.9m
- Season of interest
- Summer, Autumn
- Flowers in
- Summer, Autumn
- Evergreen
- Deciduous
- Garden style
- Gravel garden
- Sun or shade
- Likes full sun, tolerates part shade
- Soil type
- Chalk, Loam (normal)
- Soil pH
- All types
- Drainage
- Moisture retentive soil, Well drained soil
- Hardiness
- Very cold to -20C (RHS H6)
- 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.