
Alkanet
Anchusa officinalis
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.
Care Level
Low
Sun
Partial Shade
Water
Moderate
Growth Rate
Moderate
Mature Height
18″ – 36″
Soil
loam
Life Cycle
Perennial
Spacing
18″
Watering Schedule
Every 10-14 Days • Water Moderately; Allow The Top 1-2 Inches Of Soil To Dry Between Waterings
Soil pH
6 – 7.5
Temperature
-30° – 95°F
Root Depth
Deep
Foliage
Medium
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Jun 24, 2021 by nicolas pecqueux (cc-by-sa)
No nurseries currently have this species in stock.