Image of Gentiana andrewsii
Source: OWSL
image of Flowering plant
Gentiana andrewsii
Closed Bottle Gentian
Gentiane d'Andrews

Obsolete Names

Andrews' gentian
bottle gentian
closed blue gentian
closed bottle gentian
closed gentian
prairie closed gentian
Seeds available at table Mixed Sun, Medium
We currently accept seeds for this plant
Bloom colour: Blue Bloom period: Aug - Oct
Max Height: 2.0 feet
Max Width: 2.0 feet
Light condition:
Full sun More than 6 hours of direct sun a day
Part shade More than 2 or 3 hours but less than 6 hours of direct sun a day
Soil conditions:
Moisture medium Tolerates medium soil condition
Lifespan: Perennial plants that will that come back year after year
Gardener Experience:
beginner friendly Suitable for beginner gardeners
does not spread Does not spread uncontrollably
Landscape uses:
rain garden Suitable for rain gardens
school garden Suitable for school gardens
Ecological Benefits: No ecological benefits information available.
Tolerates:
Deer Resistant Deer resistant
rabbit resistant Rabbit resistant
limestone Tolerant Tolerates limestone conditions
sand Tolerant Tolerates sandy conditions
juglone Tolerant Tolerates juglone conditions
Special Features and Considerations:

Plant Location

Native to Ottawa region: Yes

Distribution according to VASCAN

Distribution: Gentiana andrewsii
Ephemeral Native Introduced Excluded Extirpated Doubtful Absent
View taxonomy on Canadensys

View on iNaturalist

Thrives in Ecozones

  • Atlantic Maritime
  • Boreal Shield
  • Mixed Wood Plains

Ecological Benefits

Butterflies Supported by Gentiana andrewsii

No butterfly data available for this plant.

Specialized Bees Supported by Gentiana andrewsii

No bee data available for this plant.

Plants that grow in similar conditions, that bloom at the same time.

Complementary Plants

Substitute For Non-Native Plants

  • Linum usitatissimum (Common Flax)
  • Ajuga reptans (Bugleweed)
  • Buddleia (Butterfly Bush)
  • Delphinium (Delphinium)
  • Salvia (Non-Native Sage)
  • Iris pseudacorus (Yellow Iris)
  • Iris (Iris Cultivars)
  • Hyacinthus (Non-Native Hyacynth)
  • Myosotis sylvatica (Forget-me-not)
  • Baptisia (False Indigo)

Sowing Information

Download Sowing Label (PDF)
  • Sowing depth: Surface sow
  • Sow by February
  • Stratification duration: 60 days

Harvesting and Seed Sharing

  • Harvest start month: September
  • Harvesting indicator: Pods are open
  • Harvesting mean: Cut stem (including pods), let air dry in paper bag, then shake seeds off after a few days
  • Seed viability test: No test needed before donating
  • Packaging measure: 1 rounded 1/32 teaspoon
  • Seed storage: Air dry in paper bag or open container, for a few days until crisp, shaking seeds to move them once in a while to prevent molding
  • At least one cultivar: No, you can donate without knowing the source as there are only straight species
  • Remove non seed material
  • Harvesting video: Watch here

Toxicity Notes

Inadequate information on toxicity found.