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PlantFiles: Great Waterleaf
Decemium appendiculatum

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Family: Boraginaceae
Genus: Decemium
Species: appendiculatum (ap-pen-dik-yoo-LAY-tum) (Info)

Synonym:Hydrophyllum appendiculatum

One vendor has this plant for sale.

4 members have or want this plant for trade.

Category:
Biennials

Height:
18-24 in. (45-60 cm)

Spacing:
15-18 in. (38-45 cm)
18-24 in. (45-60 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:
Sun to Partial Shade
Light Shade

Danger:
Unknown - Tell us

Bloom Color:
Violet/Lavender
Purple

Bloom Time:
Late Spring/Early Summer

Foliage:
Herbaceous

Other details:
This plant is attractive to bees, butterflies and/or birds
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings

Soil pH requirements:
6.6 to 7.5 (neutral)

Patent Information:
Non-patented

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
Properly cleaned, seed can be successfully stored

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Profile:

1 positive
No neutrals
No negatives

Gardeners' Notes:

RatingAuthorContent
Positive henryr10 On May 6, 2009, henryr10 from Cincinnati, OH (Zone 6b) wrote:

This lovely native plant was growing on our dappled shade urban lot when we moved in 20 years ago.
We have done absolutely nothing to it and every May we are rewarded w/ a lavender show.
By mid July it is basically gone and forgotten.
It is invasive but well mannered never seeming to bother the surrounding plants.
Believe it or not I just today finally ID'd it.

Regional...

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

Patoka, Indiana
Vincennes, Indiana
Louisville, Kentucky
Taylorsville, Kentucky
Cincinnati, Ohio
Rock Hill, South Carolina



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