Grow Yellow Campsis radicans from heirloom non-GMO seeds for vibrant trumpet-shaped flowers and vigorous climbing growth. A striking perennial vine for trellises, fences, arbors, cottage gardens, and sunny landscape spaces.
Key Features
- Produces cheerful yellow to golden trumpet-shaped flowers.
- Heirloom, non-GMO seed choice for home gardeners.
- Vigorous climbing growth creates attractive vertical garden interest.
- Ideal for trellises, fences, arbors, pergolas, and cottage gardens.
- Established plants can provide a low-maintenance ornamental display.
Growing Benefits
- Adds bright golden color to vertical garden spaces.
- Creates natural screening along suitable fences and structures.
- Brings a classic cottage-garden feel to landscapes.
- Provides attractive flowers for warm-season ornamental displays.
- Offers lasting perennial growth once well established.
Seed Specifications
- Common Name: Trumpet Vine
- Botanical Name: Campsis radicans
- Plant Type: Deciduous perennial woody vine
- Flower Color: Yellow to golden-yellow
- Flower Shape: Trumpet-shaped
- Foliage: Green, compound leaves
- Growth Habit: Vigorous climbing vine
- Sunlight: Full sun to partial shade
- Soil: Fertile, well-drained soil
- Water: Moderate; maintain consistent moisture during establishment
- Germination Time: Approximately two to four weeks under favorable conditions
- Sowing Depth: Approximately ¼ inch
- Spacing: Approximately three to six feet between young plants, depending on intended use
- Growing Zones: Generally USDA Zones 4–9, depending on local conditions
- Flowering/Maturity: Mature vines generally flower during summer; seed-grown plants may require several seasons to reach flowering size
- Uses: Trellises, fences, arbors, pergolas, cottage gardens, vertical landscapes, and ornamental borders
Growing Tips
- Start seeds indoors or sow outdoors after severe frost has passed.
- Choose a sunny location with sturdy support for climbing growth.
- Keep the seed-starting medium lightly moist without creating soggy conditions.
- Give mature vines plenty of room because trumpet vine can spread vigorously.
Seed Storage
Store unused seeds in a cool, dry, dark location. Keep them sealed in their original packet or an airtight container away from moisture, heat, and direct sunlight.
Important Growing Note
Campsis radicans is a vigorous perennial vine that can spread beyond its original planting area under favorable conditions. Provide sturdy support and adequate space, and check local recommendations before planting because trumpet vine can be invasive in some regions.
The yellow flower color may also vary depending on the specific seed line. Seed-grown plants can show natural variation in flower color, growth habit, and flowering time.
Unique Facts About Seeds
- Campsis radicans is commonly known as trumpet vine because of its distinctive trumpet-shaped flowers.
- The plant develops woody stems that can climb using aerial rootlets.
- Mature vines can create substantial vertical coverage when given suitable support.
- Trumpet-shaped flowers can be attractive to hummingbirds and other nectar-feeding pollinators.
