The Vajradanti plant (Barleria prionitis), also known as Porcupine Flower, Vajradanti herb, or Philippine Violet, is a hardy, shrub native to India. It’s well known in Ayurveda for promoting oral health (the name Vajradanti literally means “as strong as a diamond tooth”).
🌞 Light Requirements
- Prefers: Full sun to partial shade.
- Place it where it gets at least 4–6 hours of direct sunlight daily.
- If grown indoors, keep it near a bright south- or east-facing window.
- Too little light = weak growth and fewer flowers.
💧 Watering
- Water regularly but don’t overwater.
- Keep soil evenly moist, not soggy.
- Water when the top inch (2–3 cm) of soil feels dry.
- In winter, reduce watering frequency slightly.
💡 Tip: Vajradanti is somewhat drought-tolerant once mature, but young plants need consistent moisture.
🌱 Soil
- Needs well-draining soil.
- A good mix:
- 2 parts garden soil
- 1 part compost or cow dung manure
- 1 part sand or perlite
- Avoid heavy clay soils that hold water.
🌡️ Temperature & Humidity
- Thrives in warm climates (20–35°C / 68–95°F).
- Cannot tolerate frost — bring indoors or cover during cold weather.
- Moderate humidity is fine; it’s not fussy about air moisture.
🌸 Fertilizing
- Feed once a month during spring to monsoon with:
- Organic compost, or
- A mild liquid fertilizer (NPK 10-10-10) diluted to half strength.
- Avoid heavy feeding; this is a tough, low-maintenance plant.
✂️ Pruning
- Prune after flowering to maintain shape and encourage bushy growth.
- Remove dry, old, or yellowing leaves regularly.
- Light trimming also helps stimulate new shoots and more flowers.
🌼 Flowering
- Flowers usually appear from late summer to winter.
- Small, bright yellow-orange blooms form in clusters.
- More sun = more blooms.
🌿 Propagation
- Very easy to propagate from stem cuttings:
- Take a 4–6 inch cutting from a healthy branch.
- Remove lower leaves and dip the end in rooting hormone (optional).
- Plant in moist soil mix and keep in partial shade.
- Roots develop in 2–3 weeks.









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