Gentiana, Stemless Gentian, Trumpet Gentian, Blauer Enzian 'Undulatifolia'

Gentianaacaulis

Family
Gentianaceae (jen-shun-AY-see-ee)
Genus
Gentiana (jen-shee-AN-uh)
Species
acaulis (a-KAW-liss)
Synonym
Gentiana acaulis var. undulatifolia
Sun Exposure
Full Sun
Foliage
Smooth
Height
under 6 in. (15 cm)
Spacing
3-6 in. (7-15 cm)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
USDA Zone 4a: to -34.4 °C (-30 °F)
USDA Zone 4b: to -31.6 °C (-25 °F)
USDA Zone 5a: to -28.8 °C (-20 °F)
USDA Zone 5b: to -26.1 °C (-15 °F)
USDA Zone 6a: to -23.3 °C (-10 °F)
USDA Zone 6b: to -20.5 °C (-5 °F)
USDA Zone 7a: to -17.7 °C (0 °F)
USDA Zone 7b: to -14.9 °C (5 °F)
USDA Zone 8a: to -12.2 °C (10 °F)
USDA Zone 8b: to -9.4 °C (15 °F)
USDA Zone 9a: to -6.6 °C (20 °F)
Bloom Color
Dark Blue
Bloom Time
Late Spring/Early Summer
Other Details
Category
Alpines and Rock Gardens
Water Requirements
Average Water Needs; Water regularly; do not overwater
Foliage Color
Where to Grow
Bloom Characteristics
Bloom Size
Other details
Soil pH requirements
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
By dividing the rootball
Seed Collecting
Allow pods to dry on plant; break open to collect seeds
Regional

This plant is said to grow outdoors in the following regions:

Newcastle, California

Winnetka, Illinois

Canby, Oregon

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Gardener's Notes:

1
positive
0
neutral
0
negative
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P
Winnetka, IL | October 2011 | positive

The most beautiful, vivid blue in my garden. Ee-wee tiny, but still visible from yards away.

It blooms in mid spring, an...Read More

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