Landscape Uses
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South Florida Growing Guide
Light Requirements
Water Requirements
Once established (12–18 months), Simpson's Stopper is drought-tolerant and requires minimal supplemental irrigation in South Florida.
Drought tolerant once established (12-18 months). Water 2x per week during establishment. Once established, minimal supplemental irrigation needed in South Florida's rainfall pattern.
Soil and Fertilization
Fertilizer: Low-phosphorus native plant fertilizer
Schedule: February and September. Low-phosphorus native plant fertilizer.
Salt Tolerance
Suitable for coastal planting across all 5 South Florida counties.
- Mature Height
- 8–20 ft
- Mature Width
- 6–12 ft
- Growth Rate
- slow
- Water Demand
- 2/10
- Florida Grade
- Florida
- Installed Cost
- $$
- USDA Zones
- 10a, 10b, 11
- FLEPPC Status
- None
- Iguana Rating
- 7/10
Where to Buy in South Florida
Find Simpson's Stopper at South Florida nurseries — check availability and pricing at nurseries near you.
Frequently Asked Questions
How fast does Simpson's Stopper grow in South Florida?
Simpson's Stopper has a slow growth rate. In South Florida's warm, humid climate it typically establishes quickly with proper watering and fertilization.
Is Simpson's Stopper safe for pets?
Yes, Simpson's Stopper is considered pet-safe. Non-toxic to dogs and cats.
How much water does Simpson's Stopper need in South Florida?
Low water needs (2/10). Once established (12–18 months), Simpson's Stopper is drought-tolerant and requires minimal supplemental irrigation in South Florida.
Can Simpson's Stopper tolerate salt air in South Florida?
Simpson's Stopper has high salt tolerance (7/10) and is well-suited for coastal South Florida, including areas with salt air in Miami-Dade, Broward, Palm Beach, Collier, and Monroe counties.
Is Simpson's Stopper available in Miami-Dade County?
In Miami-Dade County, Simpson's Stopper is classified as: protected. Florida native — HOA cannot prohibit.
County Availability in South Florida
Miami-Dade County
Florida native — HOA cannot prohibit. Preferred for Miami-Dade native landscape mitigation requirements.
✓ Coastal OK
USDA Zone 10a–11. Tropical climate, year-round warmth and humidity.
View County Guide →Broward County
Florida native — protected. Preferred for native buffer zones.
✓ Coastal OK
USDA Zone 10a–10b. Subtropical with warm winters and wet/dry seasons.
View County Guide →Palm Beach County
Native — protected. Used in Palm Beach County native plant requirements.
✓ Coastal OK
USDA Zone 9b–10b. Transitional zone with occasional winter cold in north.
View County Guide →Collier County
Native — protected. Preferred understory species.
✓ Coastal OK
USDA Zone 10a–10b. Subtropical Gulf Coast with seasonal flooding.
View County Guide →Monroe County
Native Keys species — protected. Critical for Monroe County habitat.
✓ Coastal OK
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 Simpson's Stopper
Get answers grounded in UF/IFAS research and South Florida landscape data.