
Rainier pleated gentian
Gentiana calycosa
Rainier pleated gentian is a stunning alpine wildflower that produces vivid deep-blue trumpet blooms in late summer and requires cool temperatures and consistently moist, humus-rich, well-drained soil to thrive. It is best suited to rock gardens or alpine garden settings that mimic its natural mountain habitat and can be challenging to establish outside its native Pacific Northwest and Rocky Mountain regions. Avoid transplanting once established and protect from hot afternoon sun and drought str
Care Level
High
Sun
Partial Shade
Water
Moderate
Growth Rate
Fast
Mature Height
12″ – 48″
Soil
loam
Life Cycle
Perennial
Spacing
12″
Flowers
blue
Watering Schedule
Every 5-7 Days • Keep Soil Consistently Moist But Not Waterlogged; Never Allow To Dry Out Completely
Soil pH
5.6 – 7.5
Temperature
-25° – 95°F
Mature Spread
up to 48″
Root Depth
Medium
Foliage
Fine
Propagation: Seed, Division, Cutting
Native to
Attracts
Sources
Data: trefle, usda
Image: trefle.io — Taken Aug 10, 2019 by Callie (cc-by-sa)
No nurseries currently have this species in stock.