Centaury
Centaury
Centaurea
Plant family
Daisy family (Asteraceae)
Also known as
Centory, Starthistles, Knapweeds, Bluets, Loggerheads
Season Overview
Propagating
Planting
Harvest
Harvest
J
F
M
A
M
J
J
A
S
O
N
D
1ST YEAR
FOLLOWING YEARS
Details
Light requirement
Sunny
Water requirement
Wet
Soil
Medium (loamy)
Nutrient requirement
Medium
Light germinator
Seeding distance
20 cm
Row spacing
20 cm
Seeding depth
1 cm
Instructions
Description
Knapweed belongs to the daisy family (Asteraceae). There are about 500 species. They are annual, biennial or often perennial perennials or plants that grow between 20-300 cm tall and form rhizomes. They bloom in white, yellow, pink, purple or blue. A well-known knapweed is the cornflower. Insect friendly.
Origin:
Europe, Mediterranean and Central Asia
Growing tips
Germination after 14-21 days at 15-20°C. Direct sowing possible. Remove withered regularly. Fertilize 2 times a month. The soil should not be too dry. Blooms until the 1st frost. Rejuvenate by division after a few years. Some plants self-seed. Planting distances, sowing depth and location requirements are species and variety dependent.
Antagonistic Plants
No antagonistic plants
Diseases
Powdery mildews
Pests
Aphids
