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A Floridata Plant Profile #889 Solandra maxima
Common Names: chalice vine, cup of gold, goldcup vine, golden chalice vine
Family: Solanaceae (nightshade Family)
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Vine  Fast Growing Has evergreen foliage Flowers Fragrant

cup of gold vine
Chalice vine flowers start our yellow and turn to gold as they get old.
Cup of gold, sometimes called chalice vine, is a heavy, thick stemmed tropical liana with large shiny leaves and large bell shaped golden yellow flowers. The thick and woody ropelike stems branch frequently and root at their nodes, and can run for more than 200 ft (61 m), clinging with aerial rootlets and scrambling over everything in the way. The evergreen leaves are leathery, about 6 in (15.2 cm) long and elliptic, with prominent lighter colored midribs and lateral veins. The flowers are truly spectacular, shaped like a chalice, 6-10 in (15.2-25.4 cm) long, flaring open to 4-7 in (10.2-17.8 cm) across. The five lobes of the corolla are reflexed, and each lobe is marked with a narrow purplish brown ridge on the inside. The flowers start out yellow and turn deeper golden as they age. They are fragrant, especially at night, with a scent reminiscent of coconut. Cup of gold blooms intermittently through the year, but mainly in the winter dry season. The fruits, rarely seen in cultivation, are round berries, about 2 in (5.1 cm) in diameter.

There are eight species of chalice vines, and they often are confused in the trade. Solandra maxima is the most common species in cultivation and vines offered as S. guttata and S. grandiflora may in fact be this one. The differences are subtle.

Solandra maxima is native to Mexico, Central America and northern South America. Other species occur in the West Indies.

Cup of gold is a fast growing vine that thrives in most any well-drained soil. It tolerates severe pruning and blooms on new growth, so it can be cut back at any time of year. This is a heavy vine, and it requires a very sturdy support.
Light: Cup of gold thrives in full sun to partial shade.
Moisture: Cup of gold grows best with regular watering, but blooms best when water is withheld. Let the vine grow for a while, producing vigorous new shoots, then withhold water until the leaves begin to wilt.
Hardiness: USDA Zones 10 - 11.
Propagation: Cup of gold usually is propagated from stem cuttings taken in summer and rooted with bottom heat.

cup of gold vine
A cup of gold vine once grew on this pergola at the Fairchild Tropical Garden in Miami, Florida.
Cup of gold is often grown on large pergolas or trellises, or trained to grow up the side of a house where the spectacular flowers can spill down the walls over windows and doorways. Tolerant of salt spray and salty soils, all the chalice vines are excellent for seaside gardens. This is a large, rampant grower which requires plenty of space and a strong support.

The chalice vines are related to the angel trumpets (Datura spp. and Brugmansia spp.), and like them, have hallucinogenic properties. They are used in sacred ceremonies in Mexico.

The flowers, and probably all parts, of chalice vines are poisonous.

Steve Christman 12/15/00; updated 11/28/03

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