PLEASE NOTE: Since plants are often sourced from the garden to order, sizes do vary a little, depending on how they come out of the ground, but I always endeavour to give a little more rather than less! They are sometimes shipped bare-rooted, but will approximate the size specified (e.g. a 9cm pot).

Centaurea cyanus 'Black Ball'
Black cornflower
Type/Hardiness Annual, Hardy
Flowering period Summer
Height 18-24in/45-60cm
Light preference Sun
Soil preference Moist, well-drained
Sowing time/depth Autumn or Spring, 0.25in/6mm
An annual that ticks all the boxes! The unusual deep purple - almost black - double blooms on tall stems are a wonderful cut flower and also attract all kinds of pollinators.
Sowing and/or growing instructions
Very simple - sow direct in autumn or spring, raking in gently so that seeds are covered. Thin plants to a foot or so apart. Autumn-sown plants can reach a final height of well over a metre. Can also be sown thinly in modules, 6mm deep, thinning to one plant per cell and planting out when large enough.
Seed
1 packet - 100 seeds approx. £1.95

Latest additions to Norfolk Cottage Garden Seeds & Plants
Billbergia x windii Papaver sominferum, true red Lysimachia vulgaris Allium hollandicum Syn. aflatunense Scabiosa atropurpurea 'Beaujolais Bonnets'
Billbergia x windii Papaver sominferum, true red Lysimachia vulgaris Allium hollandicum Syn. aflatunense Scabiosa atropurpurea 'Beaujolais Bonnets'  
Norfolk Cottage Garden - Free Seeds!
Choose a packet of seeds from the three varieties below and it will be added to your order absolutely FREE!
 Nicotiana langsdorfii
Nicotiana 'Lime Green'
 Agrostis nebulosa
Agrostis nebulosa
 Nicandra physalodes
Nicandra physalodes Shoo-fly plant

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