Trichostema dichotomum
Common Name(s):
- Phonetic Spelling
- try-ko-STEM-uh dy-KAW-toh-mum
- Description
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Blue Curls are annual, native wild flowers that can be found in dry, open, sandy woodlands and around rock outcrops. Its native habitat runs from southern Maine south to Florida, west to Texas and north to Missouri and Michigan.
This plant has curled stamens that help make this plant showy. Its turn tan in the fall, making it a nice addition in dried arrangements.
The flowers are in the form of a panicle of cymes, as well as several flowers at the tips of the branches. Each cyme and each individual, single flower is enfolded by a pair of leaves. As you ascend the cyme, the size of the flowers decrease. Each cyme will contain three to seven flowers. A healthy plant can produce hundreds of cymes, with resulting numerous seeds. These seeds make the plant a self-seeder, which may cause a maintenance issue to keep the plant under control. Opening in the early morning, the flowers will drop their petals and stamens by mid-day. The lowest petal is somewhat cupped and may be shaded in white with some dark spots. The other 4 petals are shorter, rounded and minimally pointed, and are typically all the same color.
Insects, Disease, and Other Plant Problems: No issues noted. This self-seeding plant can require some effort to keep under control.
- See this plant in the following landscape:
- Cultivars / Varieties:
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- Tags:
- Cultivars / Varieties:
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- Tags:
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Attributes:
- Genus:
- Trichostema
- Species:
- dichotomum
- Family:
- Lamiaceae
- Life Cycle:
- Annual
- Recommended Propagation Strategy:
- Seed
- Country Or Region Of Origin:
- United States
- Distribution:
- Dry open woods and clearings.
- Wildlife Value:
- Native bees and beetles are attracted to this plant.
- Dimensions:
- Height: 1 ft. 0 in. - 3 ft. 0 in.
- Width: 1 ft. 0 in. - 2 ft. 0 in.
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Whole Plant Traits:
- Plant Type:
- Herbaceous Perennial
- Native Plant
- Wildflower
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Erect
- Growth Rate:
- Medium
- Maintenance:
- Medium
- Texture:
- Medium
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Cultural Conditions:
- Light:
- Full sun (6 or more hours of direct sunlight a day)
- Soil Texture:
- Sand
- Soil pH:
- Neutral (6.0-8.0)
- Soil Drainage:
- Good Drainage
- Moist
- Occasionally Dry
- Available Space To Plant:
- 12 inches-3 feet
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 7a, 7b, 8a, 8b, 9a, 9b, 10a, 10b, 11a, 11b
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Fruit:
- Fruit Color:
- Brown/Copper
- Green
- Fruit Type:
- Nut
- Fruit Length:
- < 1 inch
- Fruit Width:
- < 1 inch
- Fruit Description:
- Fruits are available September-December. The fruits appear after the flowers drop. Four green nutlets will be exposed. As they mature, they will turn a dark brown.
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Flowers:
- Flower Color:
- Blue
- Purple/Lavender
- White
- Flower Inflorescence:
- Cyme
- Panicle
- Flower Value To Gardener:
- Showy
- Flower Bloom Time:
- Fall
- Summer
- Flower Shape:
- Star
- Flower Petals:
- 4-5 petals/rays
- Flower Size:
- < 1 inch
- Flower Description:
- Deeply curved blue-stalked stamens. Each two-lipped flower has four lobes above and one larger lobe below. Flowers bloom August-November.
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Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Green
- Leaf Value To Gardener:
- Fragrant
- Leaf Type:
- Simple
- Leaf Arrangement:
- Opposite
- Leaf Shape:
- Elliptical
- Leaf Margin:
- Entire
- Hairs Present:
- Yes
- Leaf Length:
- 1-3 inches
- Leaf Width:
- 1-3 inches
- Leaf Description:
- The hairy, toothless leaves are deeply veined on the upper side, creating a slight crease. They can be slightly sticky, however, when crushed give off a lemony scent.
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Stem:
- Stem Is Aromatic:
- No
- Stem Cross Section:
- Square
- Stem Form:
- Straight
- Stem Surface:
- Hairy (pubescent)
- Stem Description:
- The stems are pubescent.
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Landscape:
- Landscape Location:
- Meadow
- Naturalized Area
- Patio
- Small Space
- Walkways
- Woodland
- Landscape Theme:
- Native Garden
- Pollinator Garden
- Design Feature:
- Border
- Mass Planting
- Small groups
- Attracts:
- Bees