Plant field guide
Trumpet Vine
Vigorous native vine with showy trumpet-shaped flowers that are magnets for hummingbirds. Fast growing and tough.
Growing requirements
- Scientific name
- Campsis radicans
- Sun
- full sun
- Water
- low
- Height
- 120 in (305 cm) – 480 in (1219 cm)
- Spread
- 48 in (122 cm) – 120 in (305 cm)
- Spacing
- 48 in (122 cm)
- Hardiness zones & minimum temperature
- USDA 4–9; average annual extreme minimum from -30°F (-34.4°C). Hardiness does not predict local frost dates.
- Difficulty
- easy
Planting & seasonal timing
Northern Hemisphere planting months: not yet verified in our database.
Northern Hemisphere pruning months: February, March.
For the Southern Hemisphere, these seasonal windows shift approximately six months. Check your local frost forecast, soil temperature, and species requirements; calendar months are not a guarantee of planting safety.
Can be extremely aggressive - suckers freely. Plant in contained area. Aerial roots can damage wood and masonry.
Pruning
Prune hard in late winter to control size. Remove suckers aggressively. Cut back side shoots to 2-3 buds.
Fertilizer
None needed
Does not need fertilizer (too much promotes leaves over flowers)
Mulch
Not needed. Control suckers around base.