Showy prairie gentian

Showy prairie gentian Care

Eustoma grandiflorum

What is the plant

Eustoma russellianum, is a species of flowering plant in the gentian family. Its previous binomial name was Eustoma grandiflorum. Common names include Texas bluebells, Texas bluebell, bluebell, showy prairie gentian, prairie gentian, and Lisianthus.

Eustoma grandiflorum, commonly called prairie gentian, bluebell gentian or lisianthus, is native to prairies and fields from northern Mexico north to Colorado and Nebraska. It is a biennial or annual that grows on erect single to sometimes branching stems rising to 3’ tall. Large gentian-like bell-shaped flowers (to 2” across) with flaring pale purple petal-like lobes bloom in summer from the upper leaf axils. Garden cultivars typically grow 18-30” tall, although some dwarf varieties (to 6-8” tall) are available. Additionally, cultivars offer a broader range of flower colors including various shades of pink, blue-violet and white. Some double-flowered varieties are also available. Ovate to oblong, 3-5 veined, stem-clasping, gray-green leaves (to 3” long). Excellent cut flower.

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Humidity

Normal

Lighting

Full Sun

Temperature

min -7°C

Hardiness zone

8 - 10

Difficulty

Medium

How to Care for the Plant

Water
Keep lisianthus plants moist, but never soggy. Overwatering encourages the development of fungal diseases. A drip irrigation system is ideal for giving your plants water right where they need it, at the roots.
Fertilizer
Lisianthus flowers like a constant nutrient stream to produce well-branched plants with abundant blossoms. Choose a flower fertilizer with 1 1/2 times the amount of potassium as nitrogen, and apply it according to package directions throughout the growing season.
Sunlight
Plant lisianthus in full sun. If you live in an area with very hot summers, the plants will benefit from some afternoon shade.

Disease diagnosis

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Soil
Choose a planting site with well-draining soil. Raised beds are ideal. The soil should be rich in organic matter such as manure, compost, or leaf mold. Lisianthus falls into that small category of flowers that cannot tolerate a very acidic soil pH. If you don’t maintain a soil pH between 6.5 and 7.0, your lisianthus plants will exhibit yellowing of the leaves and decreased vigor.
Temperature
The plant can be grown in the areas with the lowest winter temperature between 10°F and 20°F or -12.2°C and -6.7°C.
Popularity
1,213 people already have this plant 289 people have added this plant to their wishlists