Thunbergia gregorii

Orange Clock Vine, Thunbergia gibsonii

These vigorous flowering vines drape arbors and porches in a lush tapestry of dense foliage and brilliant blossoms. Their name honors Swedish botanist Karl Peter Thunberg, who found them on his travels to Java and Japan. Though native to tropics and subtropics, some species flourish as outdoor annuals much farther north. These include Thunbergia alata (Black-Eyed-Susan Vine), and the delicate Thunbergia fragrans with scented white flowers. The hardiest, Thunbergia natalensis, with pale blue, yellow-throated flowers, survives brief frost. Spread rapidly by tuber and seedling. Many grow fast enough to bloom their first season, and may bloom year-round in milder climates. Thunbergia grandiflora has become a serious pest in Australia, smothering rainforest trees. Most need full sun, especially in coastal areas, but others like partial shade. Grow in any well-drained, moderately fertile soil. Water generously spring to fall, less in winter. Prune to shape and control spread before new growth starts, in late winter or spring. Grow from seed or cuttings.
Thunbergia gregorii, Orange Clock Vine, Thunbergia gibsonii
Bright orange single flowers bloom nearly all year in mild climates. Plant 3 to 4 feet apart to cover fence, 6 feet apart for ground cover. Stems have stiff bristly hairs.

Attributes - Thunbergia gregorii

Plant Type: Annual

Bloom Season: Early Summer through Late Summer

Flower Color: Orange

Height: 4 ft. to 6 ft.

Width: 6 ft.

Sunlight: Full Sun, Partial Sun

Climate: Zones 10, 11

Notes: Thrives in Hot Climates. Low Maintenance, Showy Flowers.

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