Centaurea dealbata 'Steenbergii'
Perennial cornflower, Persian cornflower, Whitewash cornflower
- Height × spread
- 0.6m × 0.6m
- Position
- Full sun
- Hardiness
- Colder than -20C (RHS H7)
- Flowers
- Summer, Autumn
Availability
Please ask in store about availability
Many plants are seasonal. Call 01234 567890 to check current stock.
About this plant
A cultivar of the old-fashioned perennial cornflower, this is lower growing than the species and doesn't need support. With its attractive grey-green, lobed, dense foliage, it is good grown against a wall or in a defined space. The assertive lilac purple flowers are interestingly shaggy with centres that appear white with heavy petals around them and make good points of colour which add vitality and interest. The plant is invasive and will stage a takeover if you don't keep an eye on it.
- Flower colour
- Purple
- Foliage colour
- Green
- Variegated
- No
- Scent
- Yes, fragrant
- Shape
- Cube
- Height
- 0.6m
- Spread
- 0.6m
- Season of interest
- Summer, Autumn
- Flowers in
- Summer, Autumn
- Evergreen
- Deciduous
- Garden style
- Wild flower meadow, Seaside garden, Scented garden, Cottage garden
- Sun or shade
- Likes full sun, tolerates part shade
- Soil type
- Gravelly soil, Loam (normal), Poor soil, Sandy soil
- Soil pH
- All types
- Drainage
- Well drained soil, Dry soil, Drought resistant
- Hardiness
- Colder than -20C (RHS H7)
- Borders & containers
- Borders
- Use for
- Bee attraction, Butterfly 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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