Hardheads,Knapweed. Dense mat-forming perennial with grey-woolly leaves. Buds covered in brown, white-tipped bracts, open to clear blue and reddish violet flowerheads. Max Height 30cm. Max Spread 60cm. Flowers May to June. Full sun. Hardy. Water thoroughly before planting.
Centaurea triumfettii ssp. stricta
Dense mat-forming perennial with grey-woolly leaves. Buds covered in brown, white-tipped bracts, open to clear blue and reddish violet flowerheads.
Additional information
| Generic | Centaurea |
|---|---|
| Species | triumfettii |
| Varietry | ssp. stricta |
| Common Name | Hardheads, Knapweed |
| Flower Colour | blue, violet |
| Soil | |
| Aspect | Full sun |
| Foliage | Herbaceous |
| Height | 30cm |
| Family | Asteraceae |
| Spread | 60cm |
| Growth Speed | |
| Growth Habit | Mat-forming |
| Fragrance | FALSE |
| Foliage Colour | green |
| Flowers From | May, June |
| Colour Fruit | |
| Fruits When | |
| Moisture | Well drained |
| Protection | |
| Hardiness | Hardy |
| Planting | Water thoroughly before planting |
| Care | Keep moist in first year |
| Border | Border |
| Toxicity | |
| Pruning | |
| Pruning Time | |
| Pests and diseases | |
| Maintenance | |
| Propagation |
Related products
Achillea ageratifolia
A clump forming perennial with evergreen silvery grey leaves. Flat yellow flowerheads.
Acanthus spinosus Spinosissimus
A clump-forming perennial with prickly deeply cut, greyish green leaves. Spikes of pinkish mauve flowers.
Achillea filipendulina ‘Cloth of Gold’
A perennial with light green aromatic ferny leaves. Clusters of golden yellow flowerheads produced in summer.
Achillea ptarmica
A perennial with dark green finely cut leaves. Bears loose off-white flowerheads.
Achillea ageratum ‘W B Childs’
A spreading perennial with green leaves White daisy-like flowerheads produced in summer.
Achillea ‘Moonshine’
Evergreen, clump-forming, with grey-green leaves Flowerheads are flat light yellow.
Achillea ‘Credo’
Mat-forming with greyish green leaves with creamy yellow flowers.
Achillea ‘Apfelblüte’ APPLEBLOSSOM
Delicate filigree foliage with light lilac-pink flowers.