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Growing Trumpet Vine

Growing Trumpet Vine

Scarlet Trumpet Vine

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A vigorous, self-climbing woody vine with large tubular flowers that produce bean-like pods. Has clinging aerial roots that attach to surfaces, including stone, brick, and wood. Requires a sturdy structure to support plants. Its flowers are very attractive to hummingbirds. Scarlet Trumpet Vine (20226) is hardy in zones 4 to 9, and Yellow Trumpet Vine (20228) is hardy to zone 5. Campsis radicans is a southeastern North American native species. Plant bare root Trumpet Vine in spring up to 4 to 8 weeks before the last frost. Store bare root vines in a cool place out of sunlight until they are planted. Prepare a planting hole 12 to 18 inches wide and deep enriched with compost or other organic matter. Plant with the roots slightly deeper than when growing in the nursery.

Maintenance

Vigorous and easy-to-grow plants that tolerate heavy clay soils, heat, and drought. Can be grown in full sun or part shade. Flowers on new growth and can be cut back severely to control height. Best pruned in late winter to early spring. Trumpet Vine can be very aggressive and spreads by both roots and seeds.

Fertilizer Recommendations

Use low rates of Gromax Fertilizer Tablets 20-10-5 (51165), Algoflash All-Purpose Liquid Fertilizer 6-6-6 (51085), or Neptune Fish & Seaweed Fertilizer 2-3-1 (51221).

Alternative Products

Other hardy flowering vines are Clematis, Honeysuckle Vine, and Blue Moon Wisteria Vine (21236).

Complimentary Products

Trumpet Vine benefits from occasional fertilization. Monarda is a hardy perennial that attracts hummingbirds. Cardinal Climber (05566) is an annual vine that attracts hummingbirds.

Product Recommendations

Use 70% Neem Oil (50340) to control aphid problems.

Trumpet Vine Facts

Generally free from problems. Aphids sometimes feed on plants. May spread aggressively in gardens. Clinging air roots can damage painted structures when removed. Touching the leaves may cause redness and itching from a mild allergic reaction in susceptible people. This gives rise to the common name Cow-Itch Vine.

Growing Tips