Stachys officinalis 'Alba' (also called common white betony, bishop's wort, wood betony)
Hardy herbaceous perennial, this is a white version of a UK wildflower which can be found in open woodland, heaths and meadows; the wild version has pink-purple flowers. The basal leaves form a fairly dense clump while the flower stems are upright. Easy to grow, makes a good edging plant and can also be used for banks, gravel gardens, raised beds and rock gardens.
Noted for attracting wildlife, especially bees, so essential for wildlife gardens.
Flowers from early summer to autumn.
Habit - upright, clump-forming. H: 50cm S: 1m.
Stems - upright, slender, four-sided, slightly hairy.
Leaves - mid to dark-green, scalloped, oblong with rounded ends.
Flowers - borne in dense terminal spikes, white with pink shading, from early summer to autumn.
Full sun to partial shade.
Well drained. Acid, Alkaline or Neutral.
Deadhead throughout summer to encourage further flowering or leave on for the seed heads. Divide plant every couple of years or so to keep them robust.
May be attacked by slugs but otherwise fairly trouble free (I haven't had any trouble with my plants so far, and they've been in the ground for three years)
Collect and sow seed in spring, or divide in spring.
Garden Plant Information list of plant care info by botanical name