trefle.io · Taken Jul 14, 2018 by 1 (cc-by-sa)
Asteraceae
Alpine thistle
Carduus defloratus
Also known as Carline thistle, Alpine Carduus, Mountain thistle, Pternix deflorata
Native Plants · Alpine Thistle · Carduus · Wildflower · Pollinator · Rocky Soil · European Alpine · Perennial · Asteraceae · Mountain Plant
Alpine thistle is a tough, low-maintenance perennial suited to well-drained, rocky, or lean soils in full sun to partial shade. It requires minimal watering once established and is particularly well adapted to cool mountain climates. Plant it in a naturalistic or wildflower garden where its spiny foliage and purple blooms can be enjoyed by pollinators.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water lightly; allow soil to dry between waterings as it tolerates lean conditions · Every 10-14 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 7.5–8
- Temperature
- -25°F to 85°F
- Cycle
- Perennial
- Propagation
- Seed, Division
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 3 ft
- Spread
- 2 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Austria, Czechoslovakia, France, Germany, Hungary, Italy, Poland, Romania, Spain, Switzerland, Ukraine, Yugoslavia
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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