trefle.io · Taken Nov 9, 2019 by Reinhard Bachmann (cc-by-sa)
Gentianaceae
Cross gentian
Gentiana cruciata
Also known as Gentiana cruciata, Star gentian, Four-leaved gentian, Tretorrhiza cruciata
Native Plants · Gentian · Alpine · Perennial · Blue Flowers · Wildflower · Medicinal · Rock Garden · European Native · Pollinator
Cross gentian thrives in well-drained, slightly alkaline soil with consistent moisture and partial to full sun exposure. It prefers cool temperate conditions and does not tolerate prolonged drought or waterlogged roots. Plant in a rock garden or meadow border and avoid over-fertilizing, as lean soils encourage better flowering.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Water thoroughly until moist, allow top inch of soil to dry between waterings · Every 7-10 days
- Maintenance
- Moderate
- Soil
- loam
- Soil pH
- 6.5–7.5
- Temperature
- -30°F to 85°F
- Cycle
- Perennial
Hardiness
USDA 4a-8b
Form & growth
Mature size and habit
- Mature height
- 12 in – 2 ft
- Spread
- 18 in
- Spacing
- 12 in apart
- Growth rate
- Moderate
- Root depth
- Deep
- Flowers
- No
- Foliage
- Medium
Ecology & origin
Where it belongs and what it brings
- Native to
- Albania, Austria, Baltic States, Belarus, Belgium, Bulgaria, Central European Rus, Czechoslovakia, East European Russia, France, Germany, Greece, Hungary, Iran, Italy, Kazakhstan, Krym, Masachusettes, Netherlands, North Caucasus
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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