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Chalk Milkwort Wikimedia Commons
Polygalaceae

Chalk Milkwort

Polygala calcarea

Steadfast faith.

Family
Polygalaceae
Genus
Polygala
Native to
Western Europe
Bloom season
Spring, Summer
Type
perennial herb
Height
0.1-0.3 ft
Sunlight
full sun
Soil
chalky, alkaline, well-drained
Water
low
Hardiness
6-8
Lifespan
perennial

Did you know

  • Chalk milkwort grows exclusively on chalk and limestone grasslands, making it an indicator species for calcareous habitats.
  • The genus name Polygala means 'much milk,' from an ancient belief that cows eating milkwort would produce more milk.
  • Its bright blue flowers are disproportionately large for such a tiny, ground-hugging plant.
  • Chalk milkwort is threatened across Europe due to the decline of traditional chalk grassland management.
  • The flowers have a complex structure resembling a tiny butterfly, with wing-like sepals and a fringed keel petal.

Color meanings

0

spiritual devotion

1

hermitage

Uses

  • chalk grassland conservation
  • rock gardens
  • wildflower collections