Common Name: betony
Type: Herbaceous perennial
Zone: 4 to 8
Height: 1.50 to 2.00 feet
Spread: 1.50 to 2.00 feet
Bloom Time: July to September
Bloom Description: Rose-lavender
Sun: Full sun
Suggested Use: Naturalize
Tolerate: Deer, Black Walnut
Easily grown in average, medium, well-drained soils in full sun. Appreciates some light afternoon shade in hot, humid climates. Soils should be kept evenly moist, but established plants have some drought tolerance. Spreads by creeping stems (stolons) that root as they go along the ground. Plant 12-18” apart for use as a ground cover.
‘Hummelo’ is a wood betony or stachys cultivar that features basal rosettes of ovate, glossy, dark green leaves and tiny, two-lipped, rose-lavender flowers which appear in dense spikes atop mostly leafless flowering stems rising well above the foliage mat to 1.5-2’ tall in summer. Clumps will spread over time to form a dense ground cover. Leaves are evergreen in warm winter climates, but will depreciate considerably in harsh winters. Although some species of Stachys are grown primarily for their gray woolly leaves (e.g., Stachys byzantina or lamb’s ears), this species is grown primarily for its vivid flowers which can provide a spectacular display, particularly when massed. Moreover, when plants are in flower, they somewhat more closely resemble some of the salvias than the fuzzy-leaved lamb’s ears. ‘Hummelo’ is sometimes sold in commerce as a cultivar of Stachys monieri.
No serious insect or disease problems. Snails and slugs are occasional visitors.
Borders, cottage gardens, informal naturalized areas. Interesting edging plant.