Spermacoce glabra — a medium houseplant, prefers partial sun light
SPECIMEN · FROM THE LIBRARY
Spermacoce glabra

Spermacoce Glabra

Updated · 30 observations
ON THIS PLANT

Spermacoce glabra, smooth false buttonweed, is a New World species of plants in the coffee family.The species is widespread across much of North America and South America. In the United States, it is found in the southern part of the Mississippi Valley from Illinois to Louisiana, the range extending westward into Texas, Oklahoma and eastern Kansas, and eastward along the Ohio River. Isolated populations are reported from farther east, in Maryland, Virginia, South Carolina, Georgia and Florida. The species also occurs in southern Mexico (Tabasco and Campeche), Honduras, and South America (Colombia, Venezuela, Ecuador, Brazil, Paraguay, Uruguay and Argentina).

A note from PlantMom

Smooth false buttonweed has strong resistance to disease and is generally not susceptible to illnesses. Still, it can be affected by pests and diseases present in its environment; such infections are typically mild. Care-wise, this plant needs moderate maintenance. It requires regular pruning to retain an attractive appearance and healthy growth. Applying fertilizer can also aid in encouraging flowering. Smooth false buttonweed is appropriate for anyone with outdoor space, like a garden or patio, and does not demand extensive care experience. It may need more attention if cultivated indoors.

— PlantMom
CARE GUIDE

How to keep Spermacoce Glabra.

Light

Smooth false buttonweed occurs naturally in habitats like forest understories or rocky areas, where it is subject to natural shade. It prefers partial sun but can also tolerate full sun or full shade, reflecting its versatile and hardy nature.

Water

Smooth false buttonweed originates from tropical regions and thrives in environments with consistent moisture and high humidity. To maintain its evergreen foliage, it requires weekly watering that mimics its natural climate conditions. Adequate water is crucial for its growth, particularly when grown outdoors, where it can also take advantage of natural rainfall.

Temperature

Smooth false buttonweed comes from tropical areas, where the weather is typically warm and humid. Therefore it is well suited to high temperatures and humidity. It does not tolerate sudden temperature changes and prefers a steady temperature, so avoiding fluctuations indoors is important. It generally cannot withstand cold and needs higher temperatures to grow. If temperatures fall too low, the plant may stop growing or even die.

Fertilizer

Smooth false buttonweed requires the most fertilizer during its active growth period, which takes place mainly in spring, summer, and early fall. Fertilization supplies essential nutrients that the soil may be lacking, supporting healthy root and stem growth and encouraging attractive foliage, a key characteristic of this plant.

Pruning

To promote healthy growth in smooth false buttonweed, it's important to prune it at the right times, specifically in early and late spring. Make sure to remove any dead branches, maintain the plant's shape, and improve air circulation. This will help minimize pests. Always use sanitized tools to prevent the spread of disease. For more detailed pruning techniques, refer to gardening guides.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Perennial
Genus
Spermacoce
Family
Rubiaceae
Hardiness Zone
8-11
Mature Height
30 cm to 61 cm
Mature Spread
20 cm to 40 cm
Leaf Color
Green, Dark Green
Leaf Type
Evergreen
Flower Color
White
Flower Size
0.25 cm to 0.51 cm
Bloom Time
Summer, Early fall, Mid fall
Planting Time
Spring, Summer, Autumn
Harvest Time
Late summer, Fall, Early winter
Native Area
Colombia, Bolivia, Ecuador, Venezuela
ALSO KNOWN AS

Other names.

en Smooth buttonweed en Smooth false buttonweed en Buttonweed
PLATES
Spermacoce glabra leaf
PLATE 01 · leaf
Spermacoce glabra leaf
PLATE 02 · leaf
Spermacoce glabra flower
PLATE 03 · flower
Spermacoce glabra flower
PLATE 04 · flower
Spermacoce glabra habit
PLATE 05 · habit
ALSO IN THE LIBRARY

You might also like.