
Chalk milkwort
Polygala calcarea
Chalk milkwort is a delicate, low-growing wildflower that thrives in well-drained, alkaline or chalky soils and is best suited to rock gardens or native wildflower meadows. It needs full sun to partial shade and consistent but moderate moisture — never allow the soil to become waterlogged or too rich, as this will inhibit flowering. This is a specialist plant best for experienced gardeners recreating chalk grassland habitats.
Care Level
High
Sun
Partial Sun
Water
Moderate
Growth Rate
Moderate
Mature Height
12″ – 36″
Soil
loam
Life Cycle
Perennial
Spacing
6″
Watering Schedule
Every 7-10 Days • Water Lightly To Keep Soil Slightly Moist; Avoid Waterlogging
Soil pH
8 – 9
Temperature
-20° – 90°F
Mature Spread
up to 24″
Root Depth
Medium
Foliage
Medium
Propagation: Seed, Division
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Apr 18, 2018 by Guilhem Espert (cc-by-sa)
No nurseries currently have this species in stock.