trefle.io · Taken Sep 29, 2020 by Laura Sanders (cc-by-sa)
Hypericaceae
Orangegrass
Hypericum gentianoides
Also known as Brathys gentianoides, Orange grass St. Johnswort, Sarothra hypericoides, Hypericum sarothra
Flowering Plants · Native Plants · St. John'S Wort · Native Perennial · Sandy Soil · Dry Garden · Hypericaceae · Pollinator Plant · Wildflower · Eastern Us Native · Open Woodland · Low Maintenance
Orangegrass is a wiry, upright native perennial that thrives in open, sunny to partly shaded areas with sandy or well-drained, lean soils. It is very low maintenance, requiring minimal watering once established and no fertilization — rich soils can actually hinder its growth. Its tiny yellow flowers attract a variety of pollinators, making it a great addition to native plant gardens and disturbed habitat restorations.
Growing conditions
The details behind the basics
- Daily light
- 6 hours
- Watering
- Water lightly until soil is just moist; tolerates drier conditions between waterings · Every 7-10 days; reduce frequency once established
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 4.6–7
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 20 ft – 40 ft
- Spread
- 20 ft
- Spacing
- 12 in apart
- Growth rate
- Fast
- Root depth
- Medium
- Flowers
- Yellow
- Foliage
- Green · Fine
Ecology & origin
Where it belongs and what it brings
- Native to
- Alabama, Arkansas, Brazil South, Connecticut, Delaware, District Of Columbia, Dominican Republic, Florida, France, Georgia, Illinois, Indiana, Iowa, Kentucky, Louisiana, Maine, Maryland, Masachusettes, Michigan, Minnesota
- Attracts
- Bees, Butterflies, Moths
Sources: trefle, usda
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