• Tecoma Stans Golden Yellow Flowers
  • Tecoma Stans Golden Yellow Flowers
  • Tecoma Stans Golden Yellow Flowers
  • Tecoma Stans Golden Yellow Flowers
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EdenValleySeeds

Tronadora Seeds for Planting – Tecoma stans Golden Yellow Trumpet Flowering Garden Shrub

Tronadora Seeds for Planting – Tecoma stans Golden Yellow Trumpet Flowering Garden Shrub

$16.99 USD
$16.99 USD
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Key Features

  • Golden Yellow Flowers: Produces clusters of bright, trumpet-shaped yellow blossoms.

  • Attractive Green Foliage: Features compound leaves with pointed, toothed leaflets.

  • Branching Growth Habit: Develops upright woody stems and a spreading crown.

  • Warm-Climate Flowering: Produces flowers during favorable warm growing conditions.

  • Ornamental Landscape Character: Suitable for spacious, managed gardens and large containers.

Growing Benefits

  • Bright Seasonal Color: Golden-yellow flowers create a distinctive ornamental display.

  • Landscape Height: Branching stems add vertical structure to sunny garden borders.

  • Foliage Contrast: Green compound leaves complement the colorful flower clusters.

  • Container Cultivation: Young plants can be grown in large containers with adequate drainage.

  • Flexible Plant Form: Pruning can help maintain a shrub-like appearance in managed landscapes.

Seed Specifications

  • Common Name: Tronadora, Yellow Bells, Yellow Trumpetbush

  • Botanical Name: Tecoma stans

  • Plant Family: Bignoniaceae

  • Type: Ornamental Flowering Shrub

  • Plant Classification: Woody Perennial Shrub or Small Tree

  • Variety: Species Form; Cultivar Not Confirmed

  • Flower Color: Golden Yellow to Bright Yellow

  • Flower Shape: Tubular, Trumpet-Shaped

  • Flower Arrangement: Terminal Flower Clusters

  • Flower Size: Approximately 1.5–2.5 Inches Long

  • Foliage Color: Medium to Dark Green

  • Leaf Shape: Pinnately Compound With Toothed Leaflets

  • Leaf Arrangement: Opposite to Nearly Opposite

  • Plant Height: Approximately 3–25 Feet Depending on Climate and Plant Form

  • Plant Spread: Variable; Can Become Broadly Spreading

  • Growth Habit: Upright, Branching, Woody

  • Sunlight: Full Sun Preferred

  • Soil: Sandy, Loamy, or Other Well-Draining Garden Soil

  • Soil pH: Adaptable

  • Water Requirements: Moderate During Establishment; Lower Once Established

  • Germination Time: Variable Depending on Seed Lot and Growing Conditions

  • Germination Temperature: Warm Conditions Preferred; Exact Requirements Not Verified for This Seed Lot

  • Seed Preparation: Cold Stratification Generally Not Required

  • Sowing Depth: Lightly Cover With Fine Growing Medium

  • Plant Spacing: Allow Room for Mature Shrub Development

  • USDA Growing Zones: Approximately 10b–11 for Reliable Outdoor Overwintering

  • Planting Season: Spring to Early Summer After Frost Risk

  • Flowering Season: Spring Through Autumn; Longer in Frost-Free Climates

  • Maturity: Seed-Grown Plants May Begin Flowering Within Two Years Under Favorable Conditions

  • Native Region: Tropical and Subtropical Americas

  • Uses: Managed Ornamental Borders, Large Containers, Warm-Climate Landscape Plantings

  • Seed Count Per Pack: Confirm Actual Quantity

  • Special Characteristics: Golden Trumpet Flowers, Compound Leaves, Woody Stems, Elongated Seed Capsules

Botanical characteristics and growing ranges referenced from North Carolina State Extension and University of Florida IFAS.


North Carolina Extension Gardener Plant Toolbox+1

Growing Tips

  • Choose Full Sun: Bright sunlight generally supports stronger flowering.

  • Provide Excellent Drainage: Avoid planting in soil that remains saturated for extended periods.

  • Allow Adequate Space: Mature plants can become large shrubs or small trees.

  • Prune After Flowering: Trim excessive growth to manage plant height and branching.

  • Protect Young Plants From Frost: Container cultivation may be preferable in colder regions.

  • Manage Seed Dispersal: Remove developing capsules before they open where unwanted seedlings are a concern.

Seed Storage

  • Cool Storage: Keep seeds in a cool location away from excessive heat.

  • Dry Conditions: Store fully dried seeds in sealed, moisture-resistant containers.

  • Light Protection: Protect stored seeds from direct sunlight.

  • Proper Labeling: Record the botanical name, seed lot, and collection date.

  • Seed Rotation: Check older seed lots before planning larger planting projects.

Unique Facts About the Seeds

  • Winged Seed Structure: Mature capsules contain flattened seeds with thin, papery wings.

  • Distinctive Flower Throat: Yellow trumpet flowers may display fine reddish markings inside.

  • Compound Foliage: Leaves commonly contain several pairs of pointed, toothed leaflets.

  • Shrub or Small Tree Form: Mature plants may develop different heights and branching structures depending on growing conditions.

  • Elongated Seed Capsules: Narrow pods mature from green to brown before releasing their seeds.

Growing Instructions

1. Planting Season: Where cultivation is permitted, start seeds indoors in spring or sow outdoors after frost risk has passed and temperatures remain warm.
2. Soil Preparation: Prepare loose, well-draining soil. Remove weeds and incorporate finished compost when necessary.
3. Seed Preparation: Use correctly identified, mature seeds. Cold stratification is generally unnecessary for this species.
4. Sowing Method: Place seeds individually in seed-starting containers filled with lightly moistened growing medium.
5. Sowing Depth: Cover seeds lightly with a thin layer of fine growing medium. Avoid deep burial.
6. Plant Spacing: Provide adequate room for mature shrub growth and maintain suitable separation from buildings and underground utilities.
7. Sunlight Requirements: Choose a location receiving full sunlight. Young container plants should be gradually acclimated to outdoor exposure.
8. Watering: Keep the growing medium moderately moist during germination. Allow the upper soil to dry slightly between waterings after establishment.
9. Germination: Maintain warm growing conditions and consistent moisture. Emergence time varies with seed quality and environmental conditions.
10. Transplanting: Move established seedlings into larger containers as roots develop. Transplant outdoors only where the species is suitable and permitted.
11. Fertilizing: Apply finished compost or modest amounts of balanced fertilizer when soil conditions require it.
12. Plant Care: Prune after flowering to maintain shape, remove unwanted seedlings, and monitor developing seed capsules.
13. Flowering and Pollination: Mature plants produce clusters of yellow trumpet-shaped flowers during warm weather. Hummingbirds and insects may visit the blossoms.
14. Maturity and Seed Harvesting: Where collection is permitted, allow selected elongated capsules to turn brown. Collect before splitting and store the mature winged seeds in labeled containers.