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Gentiana septemfida lagodechiana (photo courtesy of Denver Botanic Gardens)
Gentiana septemfida lagodechiana (photo courtesy of Denver Botanic Gardens)

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Zone
Zones 2-6, 14-17
Full SunPartial Sun
Full, Partial
Regular Water
Moderate

Gentiana septemfida

Gentian
Gentianaceae
Perennials

GENTIANA

Gentians are prized for their tubular flowers in intense blue shades. Many are considered difficult to grow, but G. asclepiadea needs little more than consistent moisture and humus-rich soil with excellent drainage. Some require lime-free soil, as noted. Well worth the extra care, as they produce some of the richest blues in the garden.

Gentiana septemfida (photo courtesy of Denver Botanic Gardens)
Gentiana septemfida (photo courtesy of Denver Botanic Gardens)

Click to Enlarge

Gentiana septemfida

From Turkey and Iran to central Asia. Arching or sprawling stems 9–18 in. long form a spreading leafy mass about 8 in. high and 1 ft. wide. Clusters of 2-in., dark purplish blue flowers appear in late summer. G. s. lagodechiana, the form commonly sold, is similar but has more widely spaced flowers. 

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