Spermacoce keyensis Plant Care
Spermacoce keyensis Small
Updated · Sources · How we source care data
Spermacoce keyensis, the Florida false buttonweed, is a species of plants in the family Rubiaceae, first discovered in the Florida Keys. It is found in southern Florida, Bahamas, and the extreme southern tip of Texas.
Partial shade to full sun
At a glance
How do you care for Spermacoce keyensis?
Plant Spermacoce keyensis in partial shade to full sun.
Where Is the Spermacoce keyensis Native To?
What Is the Spermacoce keyensis?
Spermacoce keyensis (Spermacoce keyensis) belongs to the Rubiaceae family within the Spermacoce genus. Spermacoce keyensis is native to southern Florida, Bahamas, and the extreme southern tip of Texas.
Spermacoce keyensis displays a low spreading groundcover growth habit, reaching up to tall with a spread of approximately . Spermacoce keyensis produces small white or pink tubular flowers in clusters.
What Light Does the Spermacoce keyensis Need?
Spermacoce keyensis thrives in partial shade to full sun.
Light Requirement
Partial shade to full sun
What Soil Mix Works Best for a Spermacoce keyensis?
Well-draining, loamy soil with added organic matter for moisture retention. Good drainage is essential for Spermacoce keyensis to prevent waterlogging, which leads to root rot and fungal issues.
Where Should You Plant a Spermacoce keyensis?
Choose a spot with partial shade to full sun and well-draining, loamy soil with added organic matter for moisture retention. Avoid low spots where water collects after rain.
Plant container-grown or balled-and-burlapped trees in spring or early autumn, setting the root flare at soil level, and water well after planting.
How Do You Prune a Spermacoce keyensis?
Prune Spermacoce keyensis while it is dormant in late winter: first remove dead, damaged and crossing branches, then thin lightly for shape.
If it flowers in spring, prune right after flowering instead so you don't remove next year's buds. Never take off more than about a quarter of the tree in one year.
How Do You Care for a Spermacoce keyensis in Winter?
Water deeply in late autumn before the ground freezes, and spread a 5–8 cm (2–3 in) layer of mulch over the root zone, keeping it away from the trunk.
Young and container-grown trees need extra protection: roots in a pot freeze much more easily than roots in the ground.
How Do You Propagate a Spermacoce keyensis?
Spermacoce keyensis can be propagated through seeds, stem cuttings. Similar propagation techniques also apply to winged buttonweed plant care, which shares the same genus.
Is the Spermacoce keyensis Toxic to Pets and Children?
Pet safety not verified
The ASPCA does not list Spermacoce keyensis, so we can't confirm whether it is safe for cats and dogs. Keep pets from chewing it as a precaution.
This is a general caution, not veterinary or medical advice. If your pet ate a plant, contact your vet or animal poison control.
See all plants toxic to cats and plants toxic to dogs.
What Pests and Diseases Affect the Spermacoce keyensis?
Spermacoce keyensis is susceptible to aphids, spider mites, whiteflies. Inspect the foliage regularly, especially along leaf undersides and stems. Treat infestations promptly with insecticidal soap or neem oil to prevent spread.
Yellow leaves, brown tips or drooping? See common plant problems and how to fix them.
Keep exploring plants
Spermacoce keyensis is one of many species covered in the complete plant care and identification guide, which groups plants by genus, attribute, and popularity.
It belongs to the Spermacoce genus — compare its care with other Spermacoce species on PlantoScan.
Spermacoce is part of the Rubiaceae plant family — browse all Rubiaceae genera and species.
Spermacoce keyensis thrives in bright light and direct sun — see other bright-light plants.
More Spermacoce Species
Other Spermacoce species in PlantoScan's care catalogue share similar watering, light, and soil preferences:
Sources
- Scientific name & taxonomy: Spermacoce keyensis Small, family Rubiaceae (first published in Fl. Florida Keys : 141 (1913)) — World Flora Online record, IPNI name record.
- Pet toxicity: Pet safety not verified: the ASPCA does not list Spermacoce keyensis, so we can't confirm whether it is safe for cats and dogs. Checked against the ASPCA plant list; any other toxicity note on this page comes from PlantoScan's plant database.
- Care values(watering, light, temperature, humidity, soil, fertilizing): PlantoScan's plant database, filtered by automatic plausibility checks — values that fail them are hidden. How we source and check plant data.
Spotted a mistake? Email info@upvision.media with the page link — we check and correct reported errors.
Identify Plants Like the
Spermacoce keyensis Instantly
Scan any plant with your phone camera and get instant ID, care tips, water and fertilizer reminders, and health checks — all in one app.
Free
to download
iOS & Android
platforms
Light & dark
mode
100,000+
species