Microsteris gracilis — a medium houseplant, prefers full sun light
SPECIMEN · FROM THE LIBRARY
Microsteris gracilis

Microsteris Gracilis

Updated · 16 observations
ON THIS PLANT

Microsteris is a monotypic genus of flowering plants in the phlox family containing the single species Microsteris gracilis, known by the common name slender phlox. The segregation of this species into a genus of its own is controversial, and many botanists continue to include the plant in genus Phlox. Genetic analysis is continuing.

A note from PlantMom

Slender phlox is fairly resistant to disease and generally not prone to illnesses. Still, it can be vulnerable to pests and diseases found in its environment, although these problems are typically mild. Regarding care, the plant needs a moderate level of attention. Regular pruning is necessary to preserve an attractive appearance and healthy growth. Applying fertilizer can also encourage more blooms. Slender phlox is appropriate for anyone with outdoor space—such as a garden or patio—and does not require extensive plant-care experience. It may need extra attention when grown indoors.

— PlantMom
CARE GUIDE

How to keep Microsteris Gracilis.

Light

Slender phlox requires plentiful light to grow best. It can tolerate reduced light, but this may impair its overall health. Native to areas that usually receive ample light, slender phlox may develop stunted growth or discoloration if it does not get enough. Too much light, on the other hand, can cause wilting or leaf burn.

Temperature

Slender phlox is native to temperate regions and does best in temperatures between 68 and 95 °F (20 to 35 ℃). Its optimal growth relies on adjusting to seasonal temperature changes. Monitor temperature fluctuations closely to maintain the plant's health.

Fertilizer

When most of the Slender phlox flowers have fully opened, resume fertilizing. At the height of bloom production, apply fertilizer every three to four weeks, weather permitting. Once the plant begins producing fewer new flowers, stop fertilizing, since there's no need to feed it when it can no longer set additional blooms.

CHARACTERISTICS

Botanical profile.

Plant Type
Herb
Life Cycle
Annual
Genus
Microsteris
Family
Polemoniaceae
Hardiness Zone
6-9
Mature Height
5 cm to 20 cm
Mature Spread
3 cm to 5 cm
Leaf Color
Green
Leaf Type
Deciduous
Flower Color
Pink, White
Flower Size
0.51 cm to 1.52 cm
Bloom Time
Spring
Planting Time
Spring, Summer, Autumn
Harvest Time
Late spring, Early summer, Mid summer
Native Area
Mexico, Bolivia, Peru
ALSO KNOWN AS

Other names.

en Slender phlox en Pink microsteris en Pink twink
PLATES
Microsteris gracilis flower
PLATE 01 · flower
Microsteris gracilis flower
PLATE 02 · flower