Orange-fruited Horse Gentain, Horse Ginseng, Wild Coffee

Triosteumaurantiacum

Family
Caprifoliaceae (cap-ree-foh-lee-AY-see-ee)
Genus
Triosteum (try-oh-SEE-um)
Species
aurantiacum (aw-ran-ti-AYE-kum)
Synonym
Sun Exposure
Sun to Partial Shade
Foliage
Herbaceous
Height
36-48 in. (90-120 cm)
Spacing
9-12 in. (22-30 cm)
Hardiness
USDA Zone 3a: to -39.9 °C (-40 °F)
USDA Zone 3b: to -37.2 °C (-35 °F)
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)
Danger
N/A
Bloom Color
Red
Bloom Time
Late Spring/Early Summer
Other Details
Category
Perennials
Water Requirements
Drought-tolerant; suitable for xeriscaping
Foliage Color
Where to Grow
Bloom Characteristics
This plant is attractive to bees, butterflies and/or birds
Bloom Size
Other details
Soil pH requirements
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)
7.6 to 7.8 (mildly alkaline)
Patent Information
Propagation Methods
From seed; winter sow in vented containers, coldframe or unheated greenhouse
From seed; stratify if sowing indoors
Seed Collecting
Seed does not store well; sow as soon as possible
Regional

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

Wilkes Barre, Pennsylvania

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Gardener's Notes:

0
positive
1
neutral
0
negative
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M
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Ewing, KY (Zone 6a) | August 2001 | neutral

This herbaceous plant grows in dry, rocky, wooded areas and can reach 48 inches in height, with leaves 10 inches in length. Each leaf is...Read More

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