
trefle.io · Taken Jun 24, 2021 by nicolas pecqueux (cc-by-sa)
Boraginaceae
Alkanet
Anchusa officinalis
Also known as Anchusa officinalis var. macrantha, bugloss, Anchusa officinalis var. angustior, dyer's alkanet
Native Plants · Blue Flowers · Pollinator Plant · Cottage Garden · Borage Family · Medicinal Herb · European Wildflower · Perennial Border · Shade Tolerant · Wildlife Garden
Alkanet is a hardy cottage-garden perennial that produces vivid blue flowers beloved by pollinators. It grows best in partial shade to dappled sun with well-drained soil, and is tolerant of average fertility — avoid overly rich soils that encourage leafy growth at the expense of flowering. Deadhead spent blooms to extend the flowering season and cut back hard after flowering to promote fresh basal growth.
Growing conditions
The details behind the basics
- Daily light
- 4 hours
- Watering
- Water moderately; allow the top 1-2 inches of soil to dry between waterings · Every 10-14 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 6–7.5
- Temperature
- -30°F to 95°F
- Cycle
- Perennial
Hardiness
USDA 4a-9b
Form & growth
Mature size and habit
- Mature height
- 18 in – 3 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Deep
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Albania, Argentina Northeast, Austria, Baleares, Baltic States, Belarus, Belgium, British Columbia, Bulgaria, California, Central European Rus, Colorado, Connecticut, Corse, Czechoslovakia, Denmark, East European Russia, Finland, France, Germany
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
More Anchusa
Related plants from the same genus
Buy this plant
No nurseries currently list it
No nursery lists Alkanet right now.