How to Grow Florida Cardinal
Wikimedia Commons
Florida Cardinal
Iresine herbstii
shrubFlorida Cardinal is a tender ornamental shrub prized for its striking deep red to burgundy foliage with prominent veining. It's a heat and humidity-loving plant that thrives in warm climates and is commonly grown as a houseplant or annual bedding plant in cooler regions. The delicate foliage provides dramatic color contrast in garden beds and containers.
When should you plant Florida Cardinal in your zone?
Get a personalized planting timeline — when to start seeds, transplant, and harvest — based on your USDA zone and local frost dates. Free to start.
Example Florida Cardinal timeline · Pittsburgh, PA (Zone 6b)
-
Plant Florida Cardinal
Around Apr 17Near Pittsburgh's average last spring frost.
-
Tend & protect
Late spring–summerWatering, feeding, and pest-watch reminders.
-
Harvest Florida Cardinal
Around May 17≈ 30 days after planting
Sample dates for Pittsburgh, PA. Sign up to get exact Florida Cardinal dates for your own zip code.
Growing Conditions
Soil
Growing Zones
Find your zone →Thrives year-round in zones 10-11; grown as annual or container plant in cooler zones
Sign up free to see if Florida Cardinal grows in your zone — and get a personalized planting timeline.
Get my Florida Cardinal timeline →Growth Stages
Seedling
2-3 weeksTiny plants with simple leaves emerge from soil; foliage begins showing hints of red coloration.
Maintain high humidity and warm temperatures (70-75°F). Use grow lights if indoors. Keep soil consistently moist.
Vegetative Growth
4-6 weeksPlant develops multiple stems and branches with expanding heart-shaped leaves showing deep red veining and burgundy coloring.
Pinch back growing tips to encourage bushier growth. Provide bright indirect light. Feed weekly with balanced or high-nitrogen fertilizer. Maintain warmth and humidity.
Establishment
3-4 weeksPlant reaches desired size and shape with full, dense foliage displaying rich color; small insignificant white or pale flowers may appear.
Continue pinching to maintain shape. Reduce nitrogen fertilizer slightly. Continue regular watering and misting. Ensure good air circulation.
Mature
OngoingFully developed ornamental shrub with lush, colorful foliage at peak aesthetic appeal. Occasional small flowers form but are not ornamentally significant.
Maintain consistent moisture and humidity. Apply balanced fertilizer bi-weekly. Prune to maintain shape and remove any reverted green growth. Protect from temperatures below 50°F.
Companion Planting
Plan your garden →Plant with:
Avoid planting near:
Common Pests
-
Increase humidity through regular misting. Spray with water to dislodge mites. Use neem oil or insecticidal soap if severe.
-
Remove with cotton swab dipped in rubbing alcohol. Spray with insecticidal soap or neem oil. Isolate infested plants.
-
Use yellow sticky traps. Spray with horticultural oil or insecticidal soap. Improve air circulation.
-
Spray with strong water stream. Apply neem oil or insecticidal soap. Encourage beneficial insects.
Uses
Not typically culinary
CulinaryFlorida Cardinal is ornamental only and not recommended for consumption. [source]
Ornamental Foliage Display
HouseholdPrized as a colorful houseplant and outdoor accent plant for tropical and subtropical gardens. The striking burgundy foliage adds dramatic color to containers, borders, and interior spaces. [source]
Container and Bedding Plant
HouseholdExcellent for mixed container gardens, hanging baskets, and annual flower beds. Works well in shaded or partially shaded locations where other colorful plants struggle. [source]
Floral Arrangements
CraftColorful foliage stems are used in fresh arrangements and bouquets to provide texture, color, and visual interest. [source]
Decorative Landscaping
WildlifeWhile not a primary wildlife plant, provides some shelter and structure in warm-climate gardens as part of diverse plantings. [source]
Harvest Tips
Florida Cardinal is grown primarily for foliage rather than harvest. Pinch back stems and leaf tips as needed to maintain shape and promote bushiness. Cuttings can be propagated in water or moist soil for propagation.
Fun Facts
- 🌱 The intense red coloration of Florida Cardinal foliage develops best in cooler temperatures and with adequate light; excessively warm conditions or deep shade can reduce the vibrant red color.
- 🌱 Florida Cardinal is also known as Bloodleaf or Chicken Gizzard due to its distinctive red veining pattern resembling those anatomical features.
- 🌱 The plant can be easily propagated from stem cuttings placed in water, making it simple for gardeners to create multiple plants for sharing or filling garden spaces.
Gardening Terms
New to gardening? Learn about terms used in this guide:
Join 30,000 gardeners planning their gardens with LizPlants.
Get your personalized Florida Cardinal planting timeline
Tell us your zip code and we'll calculate exactly when to start Florida Cardinal seeds, transplant seedlings, and harvest — based on your USDA zone and local frost dates. Includes calendar reminders and printable task lists. Free to start.
Get my Florida Cardinal timeline →