If you do want to try your hand at propagating sweet violets from seed, start by buying a packet of seeds from a reputable seed company and check on the manufacturer’s growing recommendations before you start. Generally the seed should be planted early in the spring and kept in a warm place.

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Sow in well drained pots or trays of fresh compost and keep damp but not too wet. Seeds may take some time to germinate.

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Although violets can tolerate very low temperatures, they should be kept indoors until the outside temperature is fairly warm if starting from seed.

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When the seedlings are large enough to handle, and all danger of frost has passed, either re-pot or plant outside in their permanent positions. Allow about 12 inches (30cm) of growing space per plant.

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From runners:

In spring or autumn, cut the runner from the main plant and transplant to its new position if necessary, in full sun or semi-shade. Water plants well after transplanting, and firm down carefully with your heel.

Root division:

In the autumn, plants can be gently lifted and divided into two or more pieces. Dig carefully around the plants to avoid damaging the roots, then re-plant the undamaged and healthy pieces. Plant out in well-drained pots or containers and transplant into the garden during the following spring or autumn when they are growing well.

Cuttings:

Violets can also be started from cuttings taken from healthy plants in the autumn. Push cuttings into well drained pots of fresh compost and water.

Look after them during the winter months and plant out the following autumn when the cuttings have developed roots and are starting to grow.