Landscape Uses
Style Tags
South Florida Growing Guide
Light Requirements
Water Requirements
Once established (12–18 months), Cast Iron Plant is drought-tolerant and requires minimal supplemental irrigation in South Florida.
Soil and Fertilization
- Mature Height
- 1–3 ft
- Mature Width
- 2–4 ft
- Growth Rate
- very-slow
- Water Demand
- 2/10
- Florida Grade
- N/A
- Installed Cost
- $$
- USDA Zones
- 7, 8, 9, 10a, 10b, 11
- FLEPPC Status
- None
Where to Buy in South Florida
Find Cast Iron Plant at South Florida nurseries — check availability and pricing at nurseries near you.
Frequently Asked Questions
How fast does Cast Iron Plant grow in South Florida?
Cast Iron Plant has a very-slow growth rate. In South Florida's warm, humid climate it typically establishes quickly with proper watering and fertilization.
Is Cast Iron Plant safe for pets?
Yes, Cast Iron Plant is considered pet-safe. Non-toxic to cats and dogs per ASPCA. Safe for pet-accessible commercial spaces.
How much water does Cast Iron Plant need in South Florida?
Low water needs (2/10). Once established (12–18 months), Cast Iron Plant is drought-tolerant and requires minimal supplemental irrigation in South Florida.
Can Cast Iron Plant tolerate salt air in South Florida?
Salt tolerance data for Cast Iron Plant is not yet rated. Consult a coastal landscape specialist.
Is Cast Iron Plant available in Miami-Dade County?
In Miami-Dade County, Cast Iron Plant is classified as: allowed. Interior plant.
County Availability in South Florida
Miami-Dade County
Interior plant. Less common in South Florida's hot climate than in cooler US markets but performs well indoors.
USDA Zone 10a–11. Tropical climate, year-round warmth and humidity.
View County Guide →Broward County
Interior plant. No restrictions.
USDA Zone 10a–10b. Subtropical with warm winters and wet/dry seasons.
View County Guide →Palm Beach County
Interior plant. No restrictions.
USDA Zone 9b–10b. Transitional zone with occasional winter cold in north.
View County Guide →Collier County
Interior plant. No restrictions.
USDA Zone 10a–10b. Subtropical Gulf Coast with seasonal flooding.
View County Guide →Monroe County
Interior plant. No restrictions.
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 Cast Iron Plant
Get answers grounded in UF/IFAS research and South Florida landscape data.