catalog > Garden Flowers > Knapweed, Star Thistle, Cornflower

Knapweed, Star Thistle, Cornflower

Latin name: Centaurea

blue	light blue	purple	burgundy
pink	lilac	white

click photo to enlarge

flower color	burgundy, lilac, pink, purple, blue, light blue, white
life span	annual
landscape use	flowerbed, specimen, border
timing of flowering	august, july, june
soil acidity	alkaline soil, neutral soil
soil type	sandy loam soil, loamy soil
water needs	moderate
light needs	full sun
cold hardiness zone	no data
method of cultivation	non seedlings
poisonous or toxic	not poisonous plant
type of stem	erect
fragrant flower	no fragrance
shelter in winter	shelter is not required
plant height (cm)	30-70 cm
flower size	large
frost resistance	frost resistance

*Some characteristics are relevant for a temperate climate

Knapweed, Star Thistle, Cornflower photo

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