Hydrophyllum Species, Great Waterleaf

Hydrophyllumappendiculatum

Genus
Hydrophyllum (hy-droh-FIL- um)
Species
appendiculatum (ap-pen-dik-yoo-LAY-tum)
Synonym
Decemium appendiculatum
Nemophila paniculata
Sun Exposure
Sun to Partial Shade
Light Shade
Foliage
Herbaceous
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)
Bloom Color
Lavender
Medium Purple
Bloom Time
Late Spring/Early Summer
Other Details
Category
Biennials
Water Requirements
Average Water Needs; Water regularly; do not overwater
Requires consistently moist soil; do not let dry out between waterings
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
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
Regional

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

Patoka, Indiana

Vincennes, Indiana

Louisville, Kentucky

Taylorsville, Kentucky

Cincinnati, Ohio

Columbus, Ohio

Rock Hill, South Carolina

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Gardener's Notes:

1
positive
0
neutral
0
negative
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Cincinnati, OH (Zone 6b) | May 2009 | positive

This lovely native plant was growing on our dappled shade urban lot when we moved in 20 years ago.
We have done absolutely nothing...Read More

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