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Common knapweed Bella in the GardenTags plant encyclopedia

Centaurea 'Bella'

 

Common knapweed 'Bella'

Centaurea is a genus of herbaceous, thistle-like flowering plants that may be annuals, perennials or subshrubs. It is a tallish plant with raggedy-petalled flowers from late Spring into late Summer. . There are many common names for this genus. 'Cornflowers' is often used for a few species, but it is generally reserved for varieties of Centaurea cyanus, which is also sometimes also 'basket flower'. 'Bella' is a common knapweed with woolly white stems which arise in Summer bearing pale to purple-pink spikey flowerheads,

Contributed by @tal2lifshitz

 
plant Features
  • Common knapweed Bella likes full sun

    Full sun

  • Common knapweed Bella likes very little water

    Very little water

  • Common knapweed Bella is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Common knapweed Bella likes free draining and fertile

    Free draining and fertile

 
plant information

Common name

Common knapweed 'Bella'

Latin name

Centaurea 'Bella'

type

Flowering plant

family

Asteraceae

ph

5.0 - 8.5 Acid - Neutral

  • Light

    Common knapweed Bella likes full sun

    Full sun

  • Frost

    Common knapweed Bella is full frost hardy: 5f (-15°c)

    Full Frost Hardy: 5F (-15°C)

  • Soil

    Common knapweed Bella likes free draining and fertile

    Free draining and fertile

  • Water

    Common knapweed Bella likes very little water

    Very little water

Plant & bloom calendar

  •  
    Best time to plant
  •  
    When the plant will bloom

full grown dimensions

The size of a fully grown Common knapweed Bella is 0.35meters x 0.50meters 0.35 M 0.50 M

Centaurea 'Bella'

Centaurea is a genus of herbaceous, thistle-like flowering plants that may be annuals, perennials or subshrubs. It is a tallish plant with raggedy-petalled flowers from late Spring into late Summer. . There are many common names for this genus. 'Cornflowers' is often used for a few species, but it is generally reserved for varieties of Centaurea cyanus, which is also sometimes also 'basket flower'. 'Bella' is a common knapweed with woolly white stems which arise in Summer bearing pale to purple-pink spikey flowerheads,


Planting Outdoors

From Early Spring TO Late Spring

Plant container grown plants into site having dug compost into the soil first.

 

Propagation by seed Spring

From Early Spring TO Mid Spring

Sow cornflower seeds outdoors where they are to grow from early spring. Choose a position in full sun on well drained soil which has been raked to a fine tilth. Sow seeds thinly, at a depth of 3mm (1/8") in drills spaced 30cm (12") apart. Water the ground regularly, especially during dry periods. Germination usually takes 14-21days. When cornflower seedlings are large enough to handle, thin them out to 15cm (6") apart. Alternatively, grow cornflowers indoors in early spring for early summer flowering next year. Sow cornflowers on the surface of a good quality seed compost at a temperature of 18-23C (65-73F) and cover with a very fine sprinkling of compost or vermiculite. Do not exclude light as this helps germination. When seedlings are large enough to handle, transplant and grow them on in cooler conditions until large enough to move outdoors.

 

Flowering

From Late Spring TO Late Summer

The flowers appear from late Spring to late Summer

 
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