Prunella grandiflora Alba - seeds

Prunella grandiflora 'Alba', also known as white selfheal or large-flowered selfheal, is the white-flowered form of the wild type. This perennial can flower in the year of sowing. Originating from mountainous areas, it is a vigorous and hardy plant that is well-suited for rock gardens and sunny borders. It spreads through creeping stems in moist, even rocky and limestone soils, forming a pleasant semi-evergreen ground cover in winter.

Prunella grandiflora 'Alba' is a relative of dead nettles (Lamiums), sages, and thymes, belonging to the mint family. It is native to mountainous areas of central and southern Europe, where it can be found growing on limestone soils in fairly dry and rocky environments. This small perennial plant grows from a running root, producing climbing or erect stems that root at the nodes when in contact with the ground. It forms a spreading, branched basal tuft, reaching a height of 20 cm and slowly spreading over a minimum of 80 cm over time. Flowering occurs from May to August, approximately 100-150 days after sowing, depending on the sowing date. The plant produces compact spikes of pure white flowers, measuring 2 cm wide, prominently above its foliage. The leaves are ovate, hairy, 3 cm wide, petiolate, entire or toothed, strongly ribbed, and a beautiful dark green. They partially persist in winter.

Prunella grandiflora 'Alba' is perfect as a ground cover, in borders, rock gardens, as well as in containers and pots. The only requirement for successful cultivation is soil that is not too dry and well-drained. It thrives in sunny or partially shaded locations. It can be paired with alpine plants such as androsaces, erodiums, or Geranium cinereum.