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Product Description
Brighten your garden with the tropical beauty of Yellow Allamanda seeds, producing vibrant yellow trumpet-shaped flowers that thrive in sunny spots. This hardy perennial is easy to grow and adds a striking display to borders, containers, and trellises.
Features & Specifications:
Plant Type: Perennial flowering plant
Flower Color: Bright yellow
Growth Habit: Upright, climbing or sprawling
Height/Spread: 90–150 cm (36–60 in)
Blooming Season: Summer to autumn
Seed Type: Heirloom, GMO-free
Sun Requirement: Full sun
Soil Preference: Good, well-draining soil
Maintenance: Easy to grow, low-maintenance
Planting & Sowing Instructions:
Sowing Time: Start indoors 6–8 weeks before last frost or sow outdoors in warm conditions.
Depth: Sow seeds lightly on soil surface and press gently.
Spacing: 60–90 cm (24–36 in) apart.
Watering: Keep soil lightly moist until seedlings establish.
Germination: 14–28 days under warm, consistent conditions.
Care: Trim faded flowers to encourage continuous blooming and maintain tidy growth.

Life Cycle
Perennial tropical shrub or vine
Planting Season
Warm season
Growth Habit
Vigorous climbing or bushy growth
Flavor Profile
Not applicable
Plant Characteristics
Large bright yellow trumpet-shaped blooms with glossy green foliage
Use
Trellises, fences, tropical gardens, landscape accents
Growing Conditions
Rich, well-drained soils with full sunlight and warmth
Harvest Advantages
Long blooming season with bold ornamental display
Plant Resistance
Heat tolerant, moderately drought tolerant once established
Scientific Name: Allamanda cathartica
Seed Names
Yellow Allamanda Seeds
Seed Type
Heirloom open-pollinated (GMO Free)
Yellow Allamanda, commonly known as Golden Trumpet, is admired for its vibrant trumpet-shaped blooms and lush tropical appearance. Thriving in sunny warm climates, this heirloom plant produces abundant bright yellow flowers throughout the season. Its bold color and sun-loving nature make it a striking addition to home garden landscapes.
Light Requirement
Full sun
Planting Depth
½ inch
Sowing Method
Start indoors in warm conditions or direct sow in tropical climates
Plant Spacing
36–60 inches
Days to Maturity
120–180 days
Soil Preparation
Soak seeds in warm water for 12–24 hours before sowing
Hardiness Zones
USDA 10–12 (grown in containers in cooler climates)
Water Needs
Moderate moisture; well-drained fertile soil
Planting Season
Spring / Early Summer
Seed Count
Recommended Coverage
100
Up to 25 sq ft
500
Up to 50 sq ft
1000
Up to 250 sq ft