Centaurea simplicicaulis
Unbranched knapweed
- Height × spread
- 0.25m × 0.6m
- Position
- Full sun
- Hardiness
- Very cold to -20C (RHS H6)
- Flowers
- Spring, Summer, Autumn
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
This is a compact spreading plant that makes a carpet of grey green leaves held on sturdy stems. The leaves are long with waved edges, grey on their undersides. The flowers are held above the foliage and are silvered pink with masses of fine petals that make informal, slightly shaggy pom-poms. This should have flowers in late spring and early summer and there may be a few more in the autumn.
- Flower colour
- Pink
- Foliage colour
- Green
- Variegated
- No
- Scent
- No
- Shape
- Dome
- Height
- 0.25m
- Spread
- 0.6m
- Season of interest
- Spring, Summer, Autumn
- Flowers in
- Spring, Summer, Autumn
- Evergreen
- Deciduous
- Garden style
- Seaside garden, Cottage garden
- Sun or shade
- Likes full sun
- Soil type
- Loam (normal)
- Soil pH
- All types
- Drainage
- Well drained soil, Dry soil, Drought resistant
- Hardiness
- Very cold to -20C (RHS H6)
- Borders & containers
- Borders and containers
- Use for
- Ground cover, Bee attraction, Butterfly attraction, Bird attraction
- Hazards
- No
Spring
Spring-Autumn · Outdoors
Water in dry periods
Established plants in the ground can cope with 7-10 days of dryness, and shrubs often manage 2 to 3 weeks. Water one section of the garden thoroughly each day rather than a little everywhere. Check plants in pots more often, especially in hot weather.
Summer
Summer - early · Outdoors
Feed a general fertiliser
Where plants have moderate needs for nutrients, they can simply be given a general feed, fairly early in the growth season so that the growth has plenty of time to harden off before the cold weather.
Give plants a general boost with the application of a general purpose fertiliser which is spread around the root area of the plant, with amounts as directed on the feed label.
Found in
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