Pentas
Pentas is a flower in the Rubiaceae family. It grows best in full sun with medium moisture, and is listed for USDA zones 10-11. Plants sit about 12 inches apart.
Varieties
1 · sorted by days to maturity▸Pentas
PROPAGATION CATEGORY: Tender perennial (annual) (not in original seed catalog). Use: Star-shaped flower clusters; butterflies & hummingbirds.
Pentas (Pentas lanceolata) is a heat-loving tender perennial grown as an annual, blooming in domed clusters of star flowers that are magnets for butterflies and hummingbirds.
Growing notes: Botanical name: Pentas lanceolata|Hardiness zones: 10-11|Propagation: seed or cutting|Light: Full sun|Water: Medium|Mature size: 1-3 feet
Plant spacing
In a square-foot bed, space pentas about 12 in apart — that fits 1 plant in each 1-foot square (1×1). Wider rows or containers space the same.
Plan your pentas planting
Add pentas to a free GardenDraft plan and get sow, transplant, and harvest dates computed for your ZIP code — with a drag-and-drop bed layout and reminders when it’s time to plant.
Start your free plan →At a glance
Growing timeline
Care & troubleshooting
No curated care & troubleshooting advice for pentas yet. Our extension-sourced library currently focuses on common edible crops; we're expanding it over time.