Trumpet Vine plant photo (Campsis radicans)
Photo: David Hebert · CC BY 4.0
vine
Updated May 2026·Southeastern United States

Trumpet Vine

Campsis radicans

Trumpet vine is the single most attractive plant for ruby-throated hummingbirds in the eastern US — the flower's geometry, depth, and color saturation evolved specifically for hummingbird pollination over millions of years.

USDA Zones
4-9
Sun
full sun
Water
moderate
Mature Size
20-40 ft long (climbing)
Growth Rate
fast
Family
Bignoniaceae
Care guide

How to care for trumpet vine

Plant ONLY where you can mow ALL escape suckers — trumpet vine sends underground runners 50+ ft from the original plant and is nearly impossible to remove once established. The hummingbird draw is unmatched though.

Garden uses & design ideas

Best garden use

Give it a trellis, arbor, fence, or wall where vertical growth can soften hard edges without crowding nearby plants.

Pair it with

Honeysuckle, Wisteria (NOT — they'll wrestle) make easy companion choices because they share similar light, water, or visual texture needs.

Layout tip

Match it with full sun exposure, place it in a moderate-water bed where soil can stay evenly damp but not soggy, and check USDA zones 4-9 before planting. Use the garden planner to test spacing around its mature size: 20-40 ft long (climbing).

Gardener note — Double-check local invasive, edible, and toxicity guidance with your county extension office before planting around pets, children, or natural areas.

Companion plants

Trumpet Vine grows well alongside these — similar light, water, and texture needs.

HoneysuckleWisteria (NOT — they'll wrestle)

Common pests & problems

essentially pest-free; deer-resistant

Where it grows best

Native to Southeastern United States; thrives in USDA hardiness zones 4-9.

Frequently asked about trumpet vine

What USDA zones does Trumpet Vine grow in?+

Trumpet Vine is hardy in USDA zones 4-9. Outside these zones, it can usually be grown indoors or as a seasonal annual.

How much sun does Trumpet Vine need?+

Trumpet Vine prefers full sun. Place it where it gets that light most of the day for best growth and flowering.

How often should I water Trumpet Vine?+

Trumpet Vine has moderate water needs. Keep soil consistently moist but not soggy. Plant ONLY where you can mow ALL escape suckers — trumpet vine sends underground runners 50+ ft from the original plant and is nearly impossible to remove once established. The hummingbird draw is unmatched though.

How big does Trumpet Vine get?+

Trumpet Vine reaches a mature size of 20-40 ft long (climbing). Growth rate is fast, so plan spacing accordingly when planting.

What plants grow well with Trumpet Vine?+

Trumpet Vine pairs well with Honeysuckle, Wisteria (NOT — they'll wrestle). These companions share similar care requirements and don't compete aggressively for resources.

What pests affect Trumpet Vine?+

Common Trumpet Vine problems include essentially pest-free; deer-resistant. Catching early signs in routine inspection prevents most damage.

When does Trumpet Vine bloom?+

Trumpet Vine blooms in mid to late summer in orange-red trumpet flowers (3 in long). Deadheading spent flowers (where applicable) often encourages a longer bloom window.

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