knapweed
Centaurea dealbata
Cycle:
Herbaceous Perennial
Watering:
Average
Propagation:
Seed Propagation
Hardiness Zone:
4 - 8
Flowers:
Rosy pink Flowers
Sun:
Full sun
Soil:
Well-drained
Fruits:
purple,pink,white Fruits Ready In Summer
Leaf:
Yes
Leaf Color:
silver,green
Growth Rate:
Moderate
Maintenance:
Low
Drought Tolerant:
Yes
Salt Tolerant:
Yes
Invasive:
Yes
Care Level:
Medium
watering
Knapweed (Centaurea dealbata) needs to be watered deeply but infrequently. During the growing season (spring and summer), water the plant once every 10-14 days, making sure to saturate the soil and allow it to dry out completely between waterings. In the fall, reduce watering frequency to once every 2-4 weeks. In the winter, water the plant only if the topsoil feels dry to the touch; otherwise, the plant doesn't require additional water.
sunlight
Knapweed (Centaurea dealbata) requires full sun exposure to thrive, around 8-10 hours of direct sunlight each day. It should be planted in a location that receives sunlight in the morning or late afternoon, but is shaded from direct, overhead sunlight during the hottest part of the day. When grown in partial shade, knapweed will not flower or produce seed.
pruning
Knapweed (Centaurea dealbata) should be pruned as soon as it is established in the planting area. Pruning should be done in late spring or early summer. Gardeners should remove any dead, weak or diseased branches, which allows for new growth to fill in the gaps. If the knapweed has grown over its desired height, it should be pruned back to the desired size. This will help to keep the shape of the plant and helps to keep it from taking over other plants in the garden. Overall, knapweed should be pruned regularly to keep its size and shape under control.
