Allamanda Seeds – Allamanda cathartica

Grow vibrant, tropical-style blooms right at home with Allamanda Seeds – Allamanda cathartica, a non-GMO variety known for its glossy green foliage and bright, trumpet-shaped flowers. Commonly called Golden Trumpet, this vigorous plant is ideal for warm outdoor gardens, trellises, fences, and large containers.

Allamanda cathartica thrives in full sun and well-drained soil, producing abundant blossoms throughout the warm season. Its fast-growing, vining habit makes it a beautiful choice for adding height, color, and lush structure to landscapes. Easy to grow in suitable climates, it brings long-lasting ornamental value and a tropical feel to any garden.

Features

• Non-GMO Allamanda cathartica seeds

• Produces bright, trumpet-shaped blossoms

• Vigorous, fast-growing plant with glossy foliage

• Ideal for trellises, fences, and large containers

• Adds a tropical look to warm-climate gardens

• Long seasonal flowering period

Specifications

• Common Name: Allamanda / Golden Trumpet

• Scientific Name: Allamanda cathartica

• Plant Type: Perennial vine (in warm climates)

• Sun Exposure: Full sun (6–8 hours daily)

• Soil Type: Well-drained, fertile soil (pH 6.0–7.5)

• Germination Time: 21–35 days

• Days to Maturity: Several months for full growth

• Plant Height: 4–10 feet depending on support

• Spacing: 24–36 inches apart

• Watering Needs: Moderate; prefers consistent moisture

• Hardiness Zones: USDA Zones 9–11 (annual or container-grown in cooler zones)

• Planting Season:

  • Indoor Sowing: February–April

  • Outdoor Planting: April–June after frost

• Blooming Season: Late spring through fall (May–October)