Hypericaceae
Hypericum boreale
Hypericum boreale
Also known as Hypericum mutilum subsp. boreale, Hypericum mutilum var. boreale, Sarothra borealis, Hypericum boreale f. callitrichoides
Flowering Plants · Native Plants · St Johns Wort · Hypericum · Native · Wetland · Yellow Flowers · Perennial · Rain Garden · Medicinal · Northeast · Low Maintenance
Northern St. John's wort is a compact native perennial that thrives in moist to wet soils and produces cheerful small yellow flowers in summer, making it a great choice for rain gardens or naturalized wet meadow plantings. It is easy to grow with minimal maintenance and spreads gradually to form a tidy colony. This plant is well-suited to naturalistic landscapes across the northeastern and midwestern United States and Canada.
Growing conditions
The details behind the basics
- Daily light
- 5 hours
- Watering
- Keep soil consistently moist; tolerates wet feet and is suitable near water features or rain gardens · Every 7-10 days
- Maintenance
- Low
- Soil
- loam
- Soil pH
- 4.4–6
- Temperature
- -25°F to 95°F
- Cycle
- Perennial
- Propagation
- Seed, Division, Cutting
Hardiness
USDA 4b-9b
Form & growth
Mature size and habit
- Mature height
- 12 in – 4 ft
- Spread
- 4 ft
- Spacing
- 18 in apart
- Growth rate
- Moderate
- Root depth
- Medium
- Flowers
- Yes
- Foliage
- Coarse
Ecology & origin
Where it belongs and what it brings
- Native to
- British Columbia, Connecticut, Delaware, Illinois, Indiana, Iowa, Maine, Manitoba, Maryland, Masachusettes, Michigan, Minnesota, New Brunswick, New Hampshire, New Jersey, New York, Newfoundland, North Carolina, Nova Scotia, Ohio
- Attracts
- Bees, Butterflies
Sources: trefle, usda
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