Ixora
Ixora coccinea
📖 About this plant
Ixora (Ixora coccinea) is one of the most popular flowering shrubs in tropical and subtropical gardens, prized for its large, dense clusters of small, star-shaped flowers that bloom almost year-round in warm climates. Native to southern India and Sri Lanka, Ixora is a staple in Indian gardens, used as a hedge, specimen plant, foundation planting, and in containers. The flowers appear in rounded clusters (corymbs) 8-15 cm across at the branch tips, with each cluster containing dozens of small, four-petalled flowers. Bloom colours range from the classic brilliant red (I. coccinea) to orange, pink, white, yellow, and salmon, depending on the cultivar. In Indian gardens, Ixora is particularly valued for its long blooming season (often 9-10 months of the year in warm regions), its compact size, and its tolerance of pruning — making it ideal for formal hedges and topiary. The plant also attracts butterflies and hummingbirds, adding wildlife value. Ixora has cultural significance in India — the flowers are used in religious ceremonies and garlands, particularly in South India where the plant is called “Idli Poo” (Idli flower) or “Vedchi” in Tamil. Beyond ornamental use, Ixora has medicinal properties in Ayurveda — the roots are used to treat fever, leaves for skin conditions, and flowers for digestive complaints.
🧑🌾 Care requirements
Full sun to partial shade
2-3 times per week
High (60-80%)
20-32°C
Well-draining acidic soil rich in organic matter; pH 5.0-6.0. Add peat or compost.
Heavy feeder — apply acid-loving plant fertilizer (for azaleas/camellias) every 4-6 weeks during growing season
📋 Plant facts
- 🌍 Origin
- Southern India, Sri Lanka, Southeast Asia
- 📏 Max height
- 1-2 m (3-6 ft) as a shrub; dwarf forms 30-60 cm (1-2 ft)
- 📐 Spread
- 60-120 cm (2-4 ft)
- 🕰️ Bloom time
- Year-round in tropics; peak spring to autumn
- 🎨 Bloom color
- Red (most common), also orange, pink, white, yellow, salmon
- 🍃 Foliage color
- Dark glossy green, leathery, oblong leaves 5-10 cm long
- ⏳ Lifespan
- 10-20 years
- 📈 Growth rate
- Moderate — 30-60 cm per year
- ☠️ Toxicity
- Mildly toxic — may cause stomach upset if ingested; generally considered safe for humans and pets
- 🌱 Propagation
- Stem cuttings (semi-hardwood, 10-15 cm, root in 6-8 weeks), air layering, seeds (slow)
🛡️ Health & Safety
Mildly toxic — may cause stomach upset if ingested; generally considered safe for humans and pets
Common issues
- Chlorosis (yellow leaves with green veins) in alkaline soil from iron deficiency, aphids on new growth, mealybugs, scale insects, spider mites in dry conditions, sooty mold from aphid honeydew, bud drop from irregular watering
💡 Care tips
- Plant in acidic soil (pH 5.0-6.0) — Ixora suffers chlorosis in alkaline soils. Add peat, compost, or sulfur to lower soil pH. Apply an acid-loving plant fertilizer (formulated for azaleas, camellias, gardenias) every 4-6 weeks during the growing season. Water regularly — Ixora does not tolerate drought well. Mulch heavily to retain soil moisture and feed the roots. Prune in early spring to control size and shape — Ixora tolerates pruning well and can be shaped into hedges or topiary. Remove faded flower clusters to encourage reblooming. The plant is perfect for containers (use a 12-14 inch pot with acidic potting mix). Ixora makes a stunning hedge when planted 60-90 cm apart. In cold regions, grow in containers and bring indoors before frost. Watch for yellow leaves with green veins — this is iron chlorosis and indicates the soil is too alkaline; treat with chelated iron or sulfur.
