Formerly classified as Lisianthus, these long-stemmed gentian relatives (family Gentianaceae) are widely cultivated as cut flowers. Also commonly known as prairie gentians or Texas bluebells, there are 3 annual or short-lived perennial species in this genus, which are found from southern U.S.A. to northern South America. They form clumps of succulent oval to narrowly elliptical leaves, and from spring to summer produces showy funnel- to bell-shaped flowers. Specie sometimes carry their flowers singly, but the cultivated plants have long stems that produce a profusion of eye-catching blooms in a wide range of color. Lisianthus means "bitter flower;" this refers to the taste of the flowers, which were traditionally used in herbal medicine by Native Americans.
CULTIVATION
Eustoma plants are usually cultivated as annuals. Slow growing, they need lengthy warm conditions to flower well. Plant in full or half sun in fertile, moist, well-drained soil. The flower stems are best staked. Propagation can be from cuttings, but it is better to raise plants from seed. Sow in early autumn for spring flowers.
Top Tip
Although Eustoma species are classified as perennials, they do not perform very well beyond their first season. It is advised to replace the plants after flowering with fresh stock.
CULTIVATION
Eustoma plants are usually cultivated as annuals. Slow growing, they need lengthy warm conditions to flower well. Plant in full or half sun in fertile, moist, well-drained soil. The flower stems are best staked. Propagation can be from cuttings, but it is better to raise plants from seed. Sow in early autumn for spring flowers.
Top Tip
Although Eustoma species are classified as perennials, they do not perform very well beyond their first season. It is advised to replace the plants after flowering with fresh stock.
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