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Hypericum Species, Dwarf St. John's Wort, St. Johnswort

Hypericummutilum

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Family

Hypericaceae (hy-PER-ee-KAY-see-ee)

Info

Genus

Hypericum (hy-PER-ee-kum)

Info

Synonym

Sun Exposure

Sun to Partial Shade

Light Shade

Foliage

Deciduous

Herbaceous

Smooth

Height

6-12 in. (15-30 cm)

12-18 in. (30-45 cm)

18-24 in. (45-60 cm)

Spacing

3-6 in. (7-15 cm)

6-9 in. (15-22 cm)

Hardiness

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)

USDA Zone 7a: to -17.7 °C (0 °F)

USDA Zone 7b: to -14.9 °C (5 °F)

USDA Zone 8a: to -12.2 °C (10 °F)

USDA Zone 8b: to -9.4 °C (15 °F)

USDA Zone 9a: to -6.6 °C (20 °F)

USDA Zone 9b: to -3.8 °C (25 °F)

USDA Zone 10a: to -1.1 °C (30 °F)

USDA Zone 10b: to 1.7 °C (35 °F)

USDA Zone 11: above 4.5 °C (40 °F)

Danger

Unknown - Tell us

Bloom Color

Pale Yellow

Bloom Time

Late Spring/Early Summer

Other Details

Gardener's Notes:

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bdavtab7

Wimauma, FL | June 2010 | positive

Found a thick patch growing in a shaded streambed.
The bed was gravelled, so they may like their soil less acidic than usual....

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