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PlantFiles: Marsh Gentian
Gentiana pneumonanthe

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Family: Gentianaceae (jen-shun-AY-see-ee) (Info)
Genus: Gentiana (jen-shee-AN-uh) (Info)
Species: pneumonanthe (new-mon-AN-thee) (Info)

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Category:
Ponds and Aquatics

Height:
6-12 in. (15-30 cm)

Spacing:
6-9 in. (15-22 cm)

Hardiness:
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)

Sun Exposure:
Full Sun

Danger:
Unknown - Tell us

Bloom Color:
Medium Blue

Bloom Time:
Mid Spring
Late Spring/Early Summer

Foliage:
Smooth-Textured

Other details:
Very high moisture needs; suitable for bogs and water gardens

Soil pH requirements:
5.1 to 5.5 (strongly acidic)
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)

Patent Information:
Unknown - Tell us

Propagation Methods:
From seed; direct sow outdoors in fall
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors

Seed Collecting:
Allow pods to dry on plant; break open to collect seeds

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Profile:

No positives
1 neutral
No negatives

Gardeners' Notes:

RatingAuthorContent
Neutral Baa On Aug 30, 2001, Baa wrote:

Perennial erect plant from most of Europe, often found on bog land and wet heath where it avoids lime-rich soils.

Bright blue, trumpet shaped flowers with a green longitudinal stripe along the centre outside of each petal. Leaves are linear - ovate lanceolate and have just one vein upto 2 inches long.

Flowers July-September.

Not the easiest plant to keep happy

Regional...

This plant has been said to grow in the following regions:

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