🌿 Cardinal Flower (Lobelia cardinalis)
🌿 Cardinal Flower (Lobelia cardinalis)
Bold Upright Stem Plant • Bright-Green Rounded Leaves • A Structured, Architectural Centrepiece
📋 Cardinal Flower is a striking stem plant with bright-green, rounded leaves held on strong, upright stems. Its clean, architectural shape contrasts beautifully with fine-leaved and red plants, making it an elegant feature from the midground to the background, while smaller plants also work well in the foreground. It's a natural fit for Dutch-style aquascapes, nature layouts and planted community tanks.
Originally a North American marsh plant, it's wonderfully versatile and grows just as happily in paludariums as it does underwater. Ours is grown emersed (above water), so plant it in a nutrient-rich substrate and give it moderate to strong light; as it adjusts to life underwater, fresh submerged leaves take over and it settles into compact, lush growth.
It's a freshwater plant, suited to freshwater aquariums and paludariums.
💡 Highlights
🌿 Bright-Green Rounded Leaves: A fresh, clean look
🏛️ Bold, Upright Structure: An architectural centrepiece
🎨 Great Contrast Plant: Stands out beside fine-leaved and red plants
🏝️ Paludarium Friendly: A natural marsh plant above or below water
✂️ Easy Propagation: Trim and replant the tops
🧾 A Quick Look at Cardinal Flower
📛 Common Name: Cardinal Flower
🔬 Scientific Name: Lobelia cardinalis
👨👩👧 Family: Campanulaceae
🌍 Origin: North America
📏 Max Size: Typically 10-20cm submerged; taller in large tanks
🧂 Water Type: Freshwater; suits freshwater aquariums and paludariums
💧 pH Range: 6.0-7.5
🌡️ Temperature Range: 20-28°C (68-82°F)
🧠 Care Level: Beginner
💖 Growth Rate: Slow to moderate
💡 Lighting Needs: Moderate to high; stronger light gives more compact growth
🌱 CO2 Required: ❌ No, though recommended for denser growth
🏠 Placement: Foreground • Midground • Background • Groups
🧬 Tissue Culture: ✅ Yes
🌿 Grown Form: Emersed (above water)
⏳ Lifespan: Long-lived with regular trimming
🍽️ Nutrient Needs: Moderate; water column feeder, root tabs help
🐣 Propagation: Stem cuttings

















