Firespike (Odontonema callistachyum)
Care, watering, light and tips for Firespike on Floravia.
Quick facts
- Family: Acanthaceae
- Difficulty: Easy to care for
- Watering: every 4 days
- Light: Partial shade
- Temperature: 10–30 °C
About Firespike
Odontonema callistachyum, commonly known as firespike, is an evergreen shrub with glossy foliage and vibrant, tubular red flowers clustered in long spikes. Its striking appearance makes it ideal for adding a dramatic splash of color in tropical and subtropical gardens, or as a focal point in large pots on patios and terraces. It attracts hummingbirds and butterflies, making it an excellent addition to pollinator gardens.
Native range
Mexico and Central America
Care tips
It prefers a location with partial shade or morning sun and afternoon shade in hot climates for optimal flowering. It requires regular watering to keep the soil moist but not waterlogged, especially during active growth and blooming periods. It thrives in rich, well-draining, slightly acidic soil. A common mistake is neglecting to prune, which can result in a less dense plant with fewer blooms; prune annually after flowering to encourage bushier growth.
How to save a dying Firespike
- Warning signs
- Yellowish or droopy leaves, limp or soft stems, lack of flowering.
- First aid
- Check watering (moist but not soggy soil), move to partial shade, fertilize if not done in 2-3 months.
- What kills it
- Overwatering leading to root rot, or complete lack of water and intense direct sun scorching its leaves.
- Can it be saved?
- Yes! It's resilient. With quick adjustments to watering, light, and nutrients, it will recover.