Hollyhock - Alcea rosea

Hollyhocks like rich, free draining soil in a sunny position. They are perennials, but are usually grown as biennials.

They can suffer from rust, there's not too much that you do about this, apart from remove the plant after flowering. However, companion planting with Achilla millefolium (common yarrow), the leaves and roots are rich in copper which is a natural fungicide, which may help.

They will self-set freely or pick off the seed heads and sow the seeds as soon as the are ripe in pots or open ground in autumn, they will flower the following year.

Suggested sowing time:


(Key: sow indoors,   sow outside,   sow outside under cover.)

Cultivars and varieties:

Alcea rosea 'Chater's Double' - has a double flower and is named after the nurseryman W. Chater who grew hollyhocks in his garden in the 1840-50's.

Alcea rosea 'Nigra' - Has a deep red/maroon flower.

Seeds to plant now:

Indoor or in a heated greenhouse

Coriander

Cress

Cucumber

Forget-me-not

Ornamental pepper

Tomato

Outside

Alyssum

Amaranthus

Antwerp hollyhock, Fig-leaved hollyhock, hollyhock

Aster

Aubretia, Rock cress, Aubrieta, Aubrietia

Basil, Sweet basil, Common basil

Beet, Beetroot, Chard

Beetroot, Garden beet

Borecole, Kale

Bristly hollyhock

Broccoli

Cabbage

Candytuft

Cardoon

Carrot

Cauliflower

Celery

Common hollyhock

Cornflower

Courgette

Delphinium

French bean, fine bean

Hollyhock

Italian beetroot, Beetroot, Garden beet

Kohl rabi

Lettuce

Love-in-a-mist

Marrow

Nasturtium

Normandy sorrel

Ornamental winter kale

Radish

Runner bean

Spinach

Spinach, Summer spinach

Spring onion

Sweet corn

Sweet pea

Swiss chard, Ruby chard, Rhubard chard

Turnip

Outside under cover

Cucumber

Sweet corn