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About Dwarf St. John’s Wort
Dwarf St. John’s wort (Hypericum mutilum) is a small native wildflower with tiny yellow flowers, opposite leaves, and a low, delicate growth habit. It may grow as an annual or short-lived perennial, depending on the site. Even though it is much smaller than many other St. John’s worts, it still has the bright yellow flowers and many stamens that make the genus easy to recognize.
The flowers are small, usually with five yellow petals and a little burst of yellow stamens in the center. The leaves are simple, opposite, and often pale green to yellow-green. The whole plant can stay quite short, making it easy to miss unless you are looking closely in wet meadows, muddy shorelines, or damp open ground.
Dwarf St. John’s wort is a good plant for a coloring page because it shows that native plant beauty is not always large or dramatic. Sometimes the interesting plants are tiny wetland sparks: little yellow flowers, fine stems, small seed capsules, and a whole miniature world of insects around them.
Where Dwarf St. John’s Wort Grows
Dwarf St. John’s wort is native to much of eastern North America. It is commonly found in moist to wet habitats, including wet meadows, marshes, bogs, fens, shores, wetland margins, ditches, damp fields, stream edges, pond edges, and exposed muddy or sandy places where water levels have dropped.
This plant often prefers sunny to lightly shaded conditions and acidic, moist soil. It can appear in open wetlands, floodplain edges, wet prairies, seepage areas, and sandy depressions. Because it is small, it does best where taller, more aggressive plants do not completely shade it out.
In a native planting or restoration setting, dwarf St. John’s wort fits best in wet meadow gardens, pond edges, rain garden margins, damp sandy soils, and naturalized wetland plantings. It is not a bold centerpiece plant. It is more like a tiny golden punctuation mark in the wetland sentence.
Pollinators It Supports
Dwarf St. John’s wort flowers do not offer nectar, but they do offer pollen. That makes them useful to pollen-seeking insects, especially small bees and other tiny flower visitors that can work the small yellow blooms. Bumble bees, sweat bees, syrphid flies, and beetles may visit the flowers for pollen.
Good examples to show on a coloring page include bumble bees such as Bombus species, sweat bees such as Lasioglossum species, hover flies in the syrphid fly family, and small pollen-feeding beetles. These visitors may be small, but they are perfect for a plant this size. Dwarf St. John’s wort is not running a giant nectar restaurant. It is more of a pollen kiosk with excellent yellow signage.
The plant also supports insects beyond flower visitors. The gray half-spot moth (Nedra ramosula) has been recorded feeding on dwarf St. John’s wort, and the gall midge Dasineura toweri can form small galls in the axillary buds. These relationships make the plant part of the wetland food web, even though its flowers are easy to overlook.
For a coloring page, dwarf St. John’s wort pairs well with a tiny sweat bee, a bumble bee, a hover fly, a small beetle, a gray half-spot moth, or a minuscule gall on the stem. It is a good species for showing that even small wetland plants can support busy insect life.
Coloring Tips
Color the flowers bright yellow, lemon yellow, or golden yellow. The stamens can be a slightly deeper yellow or yellow-orange so the center looks full and pollen-rich. Because the flowers are small, use tiny star-like shapes or dots rather than large petals.
The leaves are usually light to medium green, sometimes with a yellow-green or slightly bluish tint. Add darker green along the leaf edges and central vein for definition. The stems can be pale green, reddish-green, or bronze-green, especially late in the season.
Seed capsules can be green when young and tan, reddish brown, or brown as they mature. In fall, the whole plant may take on red or reddish-bronze tones, which can make a beautiful late-season coloring page. For the background, place dwarf St. John’s wort along a pond edge, wet meadow, muddy shoreline, ditch, bog, or damp sandy path. Add sedges, rushes, moss, shallow water, dragonflies, hover flies, or a tiny sweat bee visiting one of the yellow flowers.