Thevetia peruviana, commonly known as yellow oleander, is an evergreen ornamental shrub or small tree appreciated for its bright yellow, trumpet-shaped flowers and glossy green foliage. It is widely planted in warm and subtropical regions as a decorative garden and street plant.
Botanical Overview
Thevetia peruviana originates from Central and South America and has adapted well to tropical, subtropical, and Mediterranean climates. It belongs to the Apocynaceae family and is closely related to other oleander species.
Growth Habit and Appearance
This plant grows as a dense shrub or small tree with an upright form. It develops slender branches covered with narrow, lance-shaped leaves that remain green throughout the year in frost-free climates.
- Evergreen shrub or small tree
- Glossy, narrow green leaves
- Bright yellow, funnel-shaped flowers
- Decorative seed pods after flowering
Flowering
Thevetia peruviana is best known for its abundant and long-lasting flowers. Blooming can occur for extended periods in warm climates, especially during spring and summer. The flowers are highly ornamental and attract visual interest in gardens and urban spaces.
Light Requirements
This species performs best in full sun. Plenty of sunlight encourages compact growth and abundant flowering. In partial shade, flowering may be reduced.
Watering and Soil
Once established, Thevetia peruviana is drought-tolerant. It prefers well-draining soil and does not tolerate waterlogged conditions.
- Use well-draining soil
- Water regularly during establishment
- Reduce watering once mature
Climate and Resistance
This plant thrives in warm climates and is commonly used in coastal and urban environments. It tolerates heat, wind, and periods of drought, but it is sensitive to frost and prolonged cold temperatures.
Maintenance and Pruning
Thevetia peruviana is a low-maintenance ornamental. Light pruning can be done to shape the plant or remove damaged branches. Regular pruning is not required for healthy growth.
Uses in Landscaping
Thanks to its vivid flowers and evergreen foliage, this plant is widely used for:
- Ornamental gardens
- Street and avenue planting
- Hedges and screening
- Parks and public spaces
Safety Note
Ornamental use only. All parts of Thevetia peruviana are considered toxic if ingested. It should not be used for food or home medicinal purposes. Care should be taken in areas accessible to children or pets.
Conclusion
Thevetia peruviana is a striking and resilient ornamental plant that adds strong color and structure to warm-climate landscapes. With full sun, well-draining soil, and minimal care, it provides long-lasting visual impact while remaining easy to maintain.