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).

Alcea rosea Ex. 'Jet Black'
Hollyhock, Ex. 'Jet Black'
Type/Hardiness Perennial, Biennial, Hardy
Flowering period All summer
Height 5-8ft/1.5-2.5m
Light preference Full sun
Soil preference Any, free-draining
Sowing time/depth Late summer, mid-winter, spring, barely cover
Deepest, deepest red-purple - as close to black as you can get! Although strictly speaking a perennial, this very popular cottage garden plant is best treated as a biennial, particularly since it can be susceptible to rust. These are very tall plants and some support is recommended.

NOTE: Since other hollyhocks are grown in the garden there is the possibility of some cross-breeding. This applies both to seeds and to plants, when offered.

Sowing and/or growing instructions
Can be direct sown in late summer or spring. Alternatively sow on the surface, barely covering with compost, under glass in mid-winter, either singly in modules or small pots, or in seed trays for transplanting when the first true leaves have developed. Although best treated as biennials, hollyhocks will often survive for a number of years. However, they are prone to rust so it is best to replace plants regularly. Cut back after first flowers are almost spent to encourage new, albeit shorter, flower spikes.
Seed
1 packet - 100 seeds approx. £1.95

Latest additions to Norfolk Cottage Garden Seeds & Plants
Helianthus annus Ex. 'Valentine' Melothria scabra Antirrhinum majus 'Black Prince' Cenolophium denudatum Borago officinalis 'Bianca'
Helianthus annus Ex. 'Valentine' Melothria scabra Antirrhinum majus 'Black Prince' Cenolophium denudatum Borago officinalis 'Bianca'  
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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