Sun: partial shade or full sun

Soil: rich, loamy soil; grows wild on limestone cliffs

Growth rate: medium to fast (1-2 ft/yr)

Mature size: 3-4 ft. tall

Landscape use: ornamental (flowering), not the medicinal species of St. John’s wort

Fruit: reddish small capsules ripen in Sept, persist into winter

Flower: showy yellow flowers in June and July

Fall color: brilliant display of red, orange, purple, and yellow

Seasonal interest: showy yellow flowers; blue-green foliage; exfoliated reddish/brown on mature bark; semi-evergreen; reddish seed capsules persist into winter

Sustaining wildlife: host of Gray Hairstreak butterfly; flowers feed butterflies