Clustered Mountainmint - Pycnanthemum muticum

 Category: Shrub

Common Name: Cedarglade St. John's Wort

Scientific Name: Hypericum frondosum

Sun Conditions:Full Sun/Partial Shade

Soil Conditions: Dry to Medium; well-drained (avoid waterlogged soil)

Height Range: 2-4 ft

Width Range: 3-4 ft

Growth Habit: Upright, dense rounded shrub

Growth Rate: Medium to Fast

Bloom Color: Yellow

Bloom Time: Early to Mid Summer (June-July)

Seed/Fruit Production: Yes

Foliage Color: Green

Hardiness Zones: 5 to 8

Evergreen: Semi-evergreen to evergreen in the southern part of its range; deciduous farther north

Deer Resistant: Yes (deer and rabbit resistant, though it may be nibbled occasionally)

Forage: Not a preferred browse; may be nibbled occasionally by deer and rabbits

Poisonous: Low concern — the genus contains hypericin (photosensitivity in livestock that eat large amounts of some St. John's worts); H. frondosum is not documented as a problem plant

Wildlife Value Highlights: Hedges, foundation plantings, borders, pollinator gardens, rock gardens, dry slopes and glade/limestone-soil plantings; flowers on new wood so it can be sheared back in spring

Ecological/Landscape Use: Big golden flowers are a magnet for native bees, bumblebees and butterflies; foliage hosts Gray Hairstreak larvae; red seed capsules persist into winter

Lepidoptera Supported by Family/Group: Larval host for the Gray Hairstreak butterfly

Lepidoptera Supported by Species: Strymon melinus

For More Info: https://plants.ces.ncsu.edu/plants/hypericum-frondosum/common-name/st-johns-wort/