Educational Story
The Fourpetal St. John’s Wort, Hypericum tetrapetalum, is a small woody shrub with few branches that can be found growing in pine flatwoods throughout Florida. It occurs only in Florida and limited areas of Georgia. This species can be identified by its brilliant yellow flowers, with four petals and heart shaped leaf bases that clasp around the stem. It enjoys full sun to part shade, in damp sandy soils of mesic flatwoods.
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Gardening Facts
| Scientific Name: | Hypericum tetrapetalum |
| Common Name: | Four-petal St. Johnwort |
| Description of facts and concepts: | Open branched species with small stems, with leaves that “clasp” around the stems. Leaves are blue/ green and the plant grows an irregular form. |
| Seed or division information: | Small black seeds form after the flower, about 0.5 mm. |
| Date of flower’s bloom (Month and week): | All year |
| Ecoregion: | Damp, sandy soils |
| Color of Flower: | Yellow |
| Height: | Up to 3 feet |
| Spread: | 1-2 feet |
| Family: | Hypericaceae (St. John’s-wort or garcinia) |
| Soil Type: Base to Acidic | Acidic to neutral |
| Soil: Dry to Wet | Moist |
| Light: Sun to Shade | Full sun to part shade |
| Zone: | 8B-10B |