Odontonema tubaeforme
Cardinal's guard flower · Fire spike
Description
Source: leafsnapOdontonema tubaeforme, commonly known as Firespike, is a tropical evergreen shrub belonging to the Acanthaceae family. Native to Central and South America, this plant can grow up to 6 feet tall. Firespike features glossy, dark green leaves that range from 4 to 8 inches in length and 2 to 4 inches in width. Its bright red, tubular flowers bloom in clusters at the ends of the stems, typically from late summer through fall. Firespike thrives in partial shade but can also tolerate full sun, provided it receives adequate moisture. The plant prefers well-draining soil and requires regular watering during dry periods, though it can withstand short droughts once it is well-established. Often used as an ornamental shrub in tropical gardens, Firespike is valued for its attractive foliage and vibrant flowers that attract hummingbirds and butterflies. Additionally, the plant has medicinal properties; traditionally, its leaves have been used to treat fever, coughs, colds, headaches, and stomach aches, among other ailments. Overall, Odontonema tubaeforme is an appealing ornamental plant with medicinal benefits, making it a popular choice for gardeners who seek both beauty and functionality in their gardens.
Care Guide
💧 Water Every 7 days
☀️ Light Full sun
Firespike does best with plenty of sunlight, which encourages healthier growth. It originates from sunny areas, indicating a natural affinity for sun. Its sunlight needs can vary a bit at different growth stages, but overall it can tolerate lower light. Excessive sun can cause damage, while too little light can limit its growth.
🌡️ Temperature 15–37.8°C
Firespike is naturally adapted to temperate climates, preferring a temperature range of 59 to 100 °F (15 to 38 °C). Seasonal adjustments may be necessary if local temperatures fall outside this range.
💨 Humidity
🪴 Soil 6-7
🌱 Fertilizer
Timing is essential when fertilizing Firespike. Apply fertilizer in early spring and repeat monthly through early summer. Fertilizer encourages attractive blooms and supplies energy during both dormant and active growth periods.
🪴 Pot & Repot
✂️ Pruning
🌿 Propagating
🐛 Diseases & pets
☠️ Toxicity
Characteristics
- Plant Type
- Shrub
- Life Cycle
- Perennial
- Genus
- Odontonema
- Family
- Acanthaceae
- Hardiness Zone
- 8-11
- Mature Height
- 2.44 m
- Mature Spread
- 1.52 m
- Leaf Color
- Green
- Leaf Type
- Evergreen, Deciduous
- Flower Color
- Red
- Flower Size
- 2.54 cm to 5.08 cm
- Bloom Time
- Early spring, Mid spring, Mid summer, Late summer, Fall, Winter
- Planting Time
- Spring, Autumn
- Harvest Time
- Early spring, Mid spring, Mid summer, Late summer, Fall, Winter
- Native Area
- Colombia, Belize, Honduras, Mexico, Guatemala, El Salvador, Nicaragua, Costa Rica, Panama