General Plant Information (Edit)
| Plant Habit: |
Shrub
|
| Sun Requirements: |
Full Sun
|
| Water Preferences: |
Wet
Wet Mesic
Mesic
Dry Mesic
Dry
|
| Soil pH Preferences: |
Moderately acid (5.6 – 6.0)
Slightly acid (6.1 – 6.5)
Neutral (6.6 – 7.3)
|
| Minimum cold hardiness: |
Zone 6a -23.3 °C (-10 °F) to -20.6 °C (-5 °F)
|
| Maximum recommended zone: |
Zone 8a
|
| Plant Height: |
3 to 6 feet |
| Plant Spread: |
3 to 6 feet |
| Leaves: |
Deciduous
|
| Fruit: |
Other: dry brown 3-celled capsules
|
| Fruiting Time: |
Fall
Late fall or early winter
Winter
|
| Flowers: |
Showy
|
| Flower Color: |
Yellow
|
| Bloom Size: |
Under 1"
|
| Flower Time: |
Summer
|
| Wildlife Attractant: |
Bees
|
| Pollinators: |
Various insects
|
| Miscellaneous: |
Tolerates poor soil
Monoecious
|
Posted by
ILPARW (southeast Pennsylvania - Zone 6b) on Aug 16, 2018 8:49 PM concerning plant:
The Dense St. Johnswort has a native range from far southeast Texas to northwest Florida up to southeast Oklahoma & Arkansas to far southern Illinois to southern Pennsylvania & New Jersey in wet to wet mesic bogs, wet meadows, stream banks, roadside ditches, and borders of ponds and lakes. The leaves are about 1 to 2 inches long. The flowers are small of about 1/2 inch across and these flowers have little stamens in the middle and more dominant sepals (petals) around them. The dry brown capsules are 3-parted. I've never seen this species.
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