Landscape Uses
Style Tags
South Florida Growing Guide
Light Requirements
Water Requirements
Water deeply 2–3 times per week during establishment, then reduce to weekly once roots are established.
Regular water 3x per week dry season. Consistent moisture for peak blooming.
Soil and Fertilization
Fertilizer: Monthly balanced fertilizer with micronutrients. Heavy feeder.
Schedule: Monthly balanced fertilizer Feb-Oct.
Salt Tolerance
- Mature Height
- 4–8 ft
- Mature Width
- 4–6 ft
- Growth Rate
- fast
- Water Demand
- 4/10
- Florida Grade
- Florida #1
- Installed Cost
- $$
- USDA Zones
- 9b, 10a, 10b, 11
- FLEPPC Status
- None
- Iguana Rating
- 4/10
Where to Buy in South Florida
Find Double Red Hibiscus at South Florida nurseries — check availability and pricing at nurseries near you.
Frequently Asked Questions
How fast does Double Red Hibiscus grow in South Florida?
Double Red Hibiscus has a fast growth rate. In South Florida's warm, humid climate it typically establishes quickly with proper watering and fertilization.
Is Double Red Hibiscus safe for pets?
Double Red Hibiscus is not safe for pets. Mild ASPCA listing. Hibiscus flowers cause vomiting in dogs/cats. Disclose.
How much water does Double Red Hibiscus need in South Florida?
Moderate water needs (4/10). Water deeply 2–3 times per week during establishment, then reduce to weekly once roots are established.
Can Double Red Hibiscus tolerate salt air in South Florida?
Double Red Hibiscus has moderate salt tolerance (4/10). It can handle some coastal exposure but should be protected from direct ocean spray.
Is Double Red Hibiscus available in Miami-Dade County?
In Miami-Dade County, Double Red Hibiscus is classified as: allowed. Allowed.
County Availability in South Florida
Miami-Dade County
Allowed. Standard tropical Hibiscus in Miami-Dade landscapes.
USDA Zone 10a–11. Tropical climate, year-round warmth and humidity.
View County Guide →Broward County
Allowed..
USDA Zone 10a–10b. Subtropical with warm winters and wet/dry seasons.
View County Guide →Palm Beach County
Allowed. Cold sensitive — protect in freezes.
USDA Zone 9b–10b. Transitional zone with occasional winter cold in north.
View County Guide →Collier County
Allowed..
USDA Zone 10a–10b. Subtropical Gulf Coast with seasonal flooding.
View County Guide →Monroe County
Allowed..
USDA Zone 11. Tropical maritime, highest salt exposure of all 5 counties.
View County Guide →Full ordinance references and permit requirements available to Professional subscribers. Always verify current county requirements before installation.
Need a Spec Sheet?
Export a client-ready PDF with Florida Grade specs, county legal status, maintenance schedule, and failure risks. Available to Professional subscribers.
Ask about Double Red Hibiscus
Get answers grounded in UF/IFAS research and South Florida landscape data.