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Heather

Calluna vulgaris · Ericaceae

The gardener's calendar

The right move for September

In autumn, ease off feeding and take the chance to clean up around heather and prepare for winter.

JFMAMJJASOND Planting

ID card

Foliage
Evergreen, small scaly gray-green leaves
Flowering
August to November, purple, pink or white flowers in clusters
Adult size
0.3 to 0.8 m tall × 0.4 to 1 m wide
Growth
Slow to moderate
Hardiness
Very hardy, down to -20°C
Origin
Europe (heathlands and calcareous areas)
Soil type
Acidic, well-drained, low in limestone

Care

Watering

Water regularly during the growth and flowering period, especially in summer. Keep the soil slightly moist but never waterlogged. Reduce watering in winter. A layer of mulch helps retain moisture.

Light exposure

Place heather in full sun or partial shade. It develops best with at least 6 hours of direct sunlight daily. Partial shade suits regions with very hot summers.

Soil and potting mix

Heather requires acidic soil (pH 4.5 to 6). Enrich the soil with ericaceous soil or acidic substrate. Ensure excellent drainage to prevent root suffocation.

Pruning and cutting

Prune lightly after flowering (November-December) to maintain a compact shape and encourage foliage renewal. Avoid cutting into old wood, as the plant heals poorly.

Fertilizing

Apply a specialized fertilizer for ericaceous plants in spring. Keep fertilizing to a minimum as heather prefers poor soils. Excess nitrogen harms flowering.

Diseases and pests

Heather is generally robust. Watch for spider mite damage in dry conditions. Powdery mildew may appear in excessive humidity. Improve ventilation and avoid overhead watering.

Did you know?

Heather is the floral emblem of Scotland, where it has covered the heathlands for millennia. Its scientific name Calluna comes from ancient Greek 'kalluno' meaning 'to clean', as it was once used to make brooms. It can live over 30 years, becoming a landscape cornerstone in northern regions.

Where to buy it

Best planted in autumn so the roots settle in before summer, or in early spring once the frost has passed. Pick a plant with healthy foliage and roots that are not exposed. Best time: March, October, November.

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Tips generated and checked by Viridia — adapt them to your local climate.