Senai / Swarnapatrika plant, which usually refers to Senna alata, also known as the Candle Bush, Ringworm Cassia, or Golden Candle Plant.
It’s a beautiful ornamental shrub with striking yellow candle-like flowers and is also valued in traditional (especially for skin conditions like ringworm).
🌼 Basic Profile
- Botanical name: Senna alata (formerly Cassia alata)
- Common names: Senai, Swarnapatrika, Candle Bush, Ringworm Bush, Golden Candle Plant
- Type: Perennial shrub
- Height: 1.5 – 3 m (5 – 10 ft) outdoors
- Native: Tropical regions (South America, widely grown in India, SE Asia, Africa)
🌞 Light Requirements
- Loves full sunlight — at least 6–8 hours per day.
- Outdoors: Best in full sun spots.
- Indoors: Keep near a bright south- or west-facing window. If light is low, supplement with a grow light.
⚠️ Without enough sun, the plant becomes leggy and won’t flower well.
💧 Watering
- Keep soil moist but not waterlogged.
- Water 2–3 times per week during hot months or when topsoil feels dry.
- Reduce watering in winter or rainy seasons — let the top inch of soil dry before watering again.
💡 Tip: Overwatering can cause root rot; underwatering makes leaves wilt quickly.
🌡️ Temperature & Humidity
- Prefers warm, tropical conditions:
- Ideal temperature: 25–35°C (77–95°F)
- Minimum tolerance: 15°C (59°F)
- It loves humidity but can tolerate normal indoor humidity. Mist occasionally if air is very dry.
🌱 Soil
- Use well-draining, fertile soil.
- Ideal mix for pots:
- 2 parts garden soil
- 1 part compost or cow manure
- 1 part sand or cocopeat
- pH: Slightly acidic to neutral (6.0–7.0)
🍽️ Fertilizing
- Feed every 3–4 weeks during growing season (spring to monsoon) with:
- Organic compost, or
- Liquid NPK (10-10-10 or 20-20-20) at half strength.
- Avoid overfertilizing in winter.
✂️ Pruning
- Prune after flowering to control size and encourage bushy growth.
- Remove old, yellowing leaves or seed pods regularly.
- Deadheading (removing spent blooms) promotes continuous flowering.
🌸 Flowering & Fruiting
- Blooms mainly in late summer to winter.
- Tall yellow spikes (candle-like) appear — very attractive to butterflies and bees.
- Produces long seed pods after flowering — you can collect seeds for propagation.
🌿 Propagation
- From seeds:
- Soak seeds in warm water for 12–24 hours.
- Sow in moist soil, keep warm (25–30°C).
- Germination takes 1–2 weeks.
- From cuttings:
- Take semi-hardwood cuttings, dip in rooting hormone, and plant in moist soil.









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