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Plants that fill a similar niche:
Canna Flower
Dianthus Flowers
Lantana camara 'Miss Huff' Close up of leaves and flowers in the fall, Pitt County.
Cuphea hyssopifolia has some common insect problems:
Mealybugs
Greenhouse Thrips

Cuphea hyssopifolia

Phonetic Spelling
KOO-fee-ah hiss-sop-ih-FOH-lee-ah
Description

Mexican heather is a small, flowering, evergreen shrub native to Mexico, Guatemala and Honduras. It has naturalized to Hawaii and is considered weedy there.The small lavender flowers appear singly in the leaf axis along the stem and bloom profusely until frost. This compact plant tends to grow to 2 feet tall and wide in a rounded shape with multiple stems and is evergreen in warm climates or indoors. 

The plant has the appearance of heather, but is not a member of the heather family. Some white- and pink-flowered cultivars are available. The genus name comes from the Greek for curved or humped referring to the shape of its seed capsules. The species name means leaves like hyssop.

It is moderately salt-tolerant, adaptable to various soils with good drainage in full sun and tolerates high summer heat and some drought, but grows best with regular moisture. In cooler climates, it is usually grown as a perennial container plant or houseplant.  If grown indoors, place the plant in a warm, sunny location. In the garden, it is typically grown as an annual.

You can grow the plant from seed started indoors 8 to 10 weeks before the last frost date, or propagate from tip cuttings. 

Insects, Diseases, and Other Plant Problems:

Mealybugs, thrips, and whiteflies can be a problem, particularly on indoor plants.

See this plant in the following landscape:
Cultivars / Varieties:
Tags:
#purple#hummingbird friendly#full sun tolerant#heat tolerant#drought tolerant#pink flowers#salt tolerant#summer flowers#long bloom time#border planting#spring interest#subshrub#humidity tolerant#butterfly friendly#container plant#annual#patio#walkway#HS304
 
Cultivars / Varieties:
Tags:
#purple#hummingbird friendly#full sun tolerant#heat tolerant#drought tolerant#pink flowers#salt tolerant#summer flowers#long bloom time#border planting#spring interest#subshrub#humidity tolerant#butterfly friendly#container plant#annual#patio#walkway#HS304
  • Attributes:
    Genus:
    Cuphea
    Species:
    hyssopifolia
    Family:
    Lythraceae
    Uses (Ethnobotany):
    The leaves and flowers are used as a tonic and in the treatment of fevers and coughs. They are also used as an insecticide
    Life Cycle:
    Annual
    Perennial
    Recommended Propagation Strategy:
    Root Cutting
    Stem Cutting
    Country Or Region Of Origin:
    Mexico, Guatemala and Honduras
    Distribution:
    Venezuela, Columbia, Hawaii, Florida.
    Wildlife Value:
    Flowers attract butterflies and hummingbirds.
    Dimensions:
    Height: 1 ft. 0 in. - 2 ft. 0 in.
    Width: 0 ft. 9 in. - 2 ft. 8 in.
  • Whole Plant Traits:
    Plant Type:
    Annual
    Ground Cover
    Perennial
    Shrub
    Woody Plant Leaf Characteristics:
    Broadleaf Evergreen
    Habit/Form:
    Multi-stemmed
    Rounded
    Spreading
    Growth Rate:
    Medium
    Maintenance:
    Low
    Texture:
    Medium
  • Cultural Conditions:
    Light:
    Full sun (6 or more hours of direct sunlight a day)
    Partial Shade (Direct sunlight only part of the day, 2-6 hours)
    Soil Texture:
    Clay
    Loam (Silt)
    Sand
    Soil Drainage:
    Good Drainage
    Moist
    Occasionally Dry
    Available Space To Plant:
    12 inches-3 feet
    USDA Plant Hardiness Zone:
    9a, 9b, 10a, 10b, 11a, 11b
  • Fruit:
    Fruit Type:
    Capsule
    Fruit Description:
    Small seeds.
  • Flowers:
    Flower Color:
    Pink
    Purple/Lavender
    White
    Flower Inflorescence:
    Solitary
    Flower Value To Gardener:
    Showy
    Flower Bloom Time:
    Fall
    Summer
    Flower Shape:
    Trumpet
    Flower Petals:
    6 petals/rays
    Flower Size:
    < 1 inch
    Flower Description:
    Lavender-purple trumpet-shaped flowers with 6 petals and green calx tubes grow singly in the leaf axils. Blooms profusely from summer until frost.
  • Leaves:
    Woody Plant Leaf Characteristics:
    Broadleaf Evergreen
    Leaf Color:
    Green
    Leaf Feel:
    Glossy
    Leaf Value To Gardener:
    Long-lasting
    Leaf Type:
    Simple
    Leaf Arrangement:
    Alternate
    Leaf Shape:
    Lanceolate
    Leaf Margin:
    Entire
    Hairs Present:
    No
    Leaf Length:
    < 1 inch
    Leaf Width:
    < 1 inch
    Leaf Description:
    3/4 inch glossy green leaves are lance-shaped and crowded along the stem. In warm climates or indoors they are evergreen.
  • Stem:
    Stem Color:
    Green
    Stem Is Aromatic:
    No
    Stem Surface:
    Hairy (pubescent)
    Stem Description:
    Green stems with hairs
  • Landscape:
    Landscape Location:
    Container
    Hanging Baskets
    Houseplants
    Patio
    Walkways
    Landscape Theme:
    Butterfly Garden
    Pollinator Garden
    Design Feature:
    Border
    Attracts:
    Butterflies
    Hummingbirds
    Resistance To Challenges:
    Heat
    Humidity
    Salt