Large-flowered selfheal (Prunella grandiflora)

Care, watering, light and tips for Large-flowered selfheal on Floravia.

Large-flowered selfheal

Quick facts

About Large-flowered selfheal

Prunella grandiflora, commonly known as large-flowered selfheal or "storblåkoll" in Swedish, is a low-growing perennial herbaceous plant, ideal for ground cover. Its spikes of violet or blue flowers, appearing from late spring to early autumn, make it perfect for borders, rockeries, or as part of a wild garden. It's a robust plant that attracts pollinators.

Native range

Central and Southern Europe, and the Caucasus

Care tips

It prefers full sun to partial shade and well-drained soil, though it tolerates a wide range of conditions. Watering should be moderate, allowing the substrate to dry out slightly between waterings, and it's quite drought-tolerant once established. A common mistake is planting it in excessively wet or poorly drained soils, which can lead to root rot. It does not require much fertilization.

How to save a dying Large-flowered selfheal

Warning signs
Wilting, yellowing or spotted leaves, lack of flowering, stunted growth.
First aid
Check drainage, adjust watering (they prefer humidity, but not waterlogging), place in partial shade.
What kills it
Overwatering that rots roots or prolonged extreme drought. Also intense direct sun.
Can it be saved?
Yes, if roots are not completely rotted and green stems remain. It's quite resilient.

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