Overview
White Plumbago is the white-flowering form of Cape Plumbago. Its flexible stems carry clusters of clean white flowers through much of the warm season, producing a softer look than the familiar blue form in South Tampa landscapes.
Mature Size and Habit
The plant develops a broad mounding to sprawling habit about 4 to 6 feet tall and wide. Long stems arch over walls or neighboring foliage and can be guided on support, though they do not cling by themselves.
Best Landscape Uses
Use it along foundations, on slopes, over retaining walls, in mixed borders, or in large containers. It also works as an informal hedge, but frequent shearing removes flowers and hides the naturally graceful branching.
Sunlight
Full sun produces the heaviest bloom and densest form. Partial sun remains suitable in Tampa, especially with strong morning light. Too much shade causes long weak stems and fewer flower clusters.
Soil, Drainage, and Irrigation
Plumbago adapts to many soils when drainage is good. Water deeply during establishment, then irrigate during extended dry periods. Established plants tolerate drought, while wet soil encourages root and stem rot.
Best Planting Season for Tampa and Central Florida
Fall through spring gives roots time to establish before summer heat. Warm-season planting succeeds with dependable irrigation. Space plants 4 to 6 feet apart when a broad natural mass is desired.
Pruning and Maintenance
Cut back long stems selectively after a major bloom flush or in late winter. Avoid constant shearing. Wear gloves because plant sap and leaf hairs can irritate skin, and monitor for scale, mites, whiteflies, and root rot.
Wildlife Value
Flowers supply nectar to butterflies and bees. Plumbago also serves as a larval host for certain blue butterflies in Florida, giving it more ecological value than many nonnative flowering shrubs when managed responsibly.
Cold and Heat Sensitivity
The plant handles Tampa heat and sun well after establishment. Frost may burn foliage or kill exposed stems, but mature roots usually recover. A protected wall or mulched root zone reduces winter damage.
Safety, Roots, and Placement Warnings
Sap can cause contact dermatitis, and plant parts should not be eaten by people or pets. Roots are not considered destructive, but sprawling stems can cover walks, vents, drains, and neighboring plants without routine control.
Invasive Concerns
Plumbago auriculata is nonnative and currently considered a low-risk landscape plant in Florida guidance. Continue to monitor spreading stems and seedlings, and never discard live prunings in natural areas or waterways.
Helpful Resources
See UF/IFAS Cape Plumbago guidance and UF/IFAS White Plumbago guidance.