How to Grow Lisianthus – Eustoma


Lisianthus, botanical name Eustoma, produces broad, bell-shaped, satin-textured flowers in shades of blue, rose, pink, purple, and white. Flowers appear in summer on long stalks either singly or in clusters above oblong gray-green leaves.

Flowers appear singly or in clusters; they gradually open from slender, furled buds. Flowers appear gray-green foliage in summer and are long lasting. Plants will rebloom if if old blooms are cut off.

There are just three species in the Eustoma genus. All are tap-rooted biennials usually grown as annuals. Eustoma is native to the prairies and fields of the central United States.

Eustoma grandiflorum
Eustoma grandiflorum

Get to Know Lisianthus

  • Plant type: Biennial usually grown as an annual
  • Growing Zones and range: Zones 8 to 11
  • Hardiness: Tender
  • Height and width: 15 to 20 inches (38-50cm) tall; 12 inches (30cm) wide
  • Foliage: Ovate to oblong-lance-shaped leaves are stalkless
  • Flowers: Ivory, pink, and purple deeply cup-shaped blooms on long, sturdy stems
  • Bloom time: Mid- to late summer
  • Uses: Cut flower; cutting garden; some varieties have double blooms
  • Garden companions: roses, snapdragons, delphiniums
  • Common name: Lisianthus
  • Botanical name: Eustoma grandiflorum (Lisianthus grandifolia)
  • Family: Gentiananceae
  • Origin: Prairies of North America

Where to Plant Lisianthus

  • Plant lisianthus in full sun; in not summer regions plant lisianthus in partial shade.
  • Plant lisianthus in average, well-drained soil.
Lisianthus, Eustoma grandiflorum
Lisianthus, Eustoma grandiflorum

When to Plant Lisianthus

  • Set established plants in the garden in spring after all danger of frost is passed.
  • Sow seed in autumn or late winter.

Planting and Spacing Lisianthus

  • Space Lisianthus 12 inches (30cm) apart.
  • Seeds are dust-like; sprinkle seeds on the surface of the soil and don’t cover them.

How to Water and Feed Lisianthus

  • Lisianthus requires ample moisture.
  • Fertilize lisianthus every 4 weeks or add a 9-month, slow-release fertilizer at planting time.

Lisianthus Care

  • Mulch around lisianthus to conserve soil moisture.
  • Pinch out tops at planting time to encourage bushier growth and more flowers.
  • Remove spent flowers to encourage more flowers.
  • Lisianthus is usually pest-free.

Lisianthus Pests and Diseases

  • Lisianthus is often affected by virus diseases, gray mold, stem cankers, and Fusarium wilt.

Lisianthus Propagation

  • Sow seed in warm soil in autumn or late winter; seeds are dust-like and do not need soil cover; transplant them at the four-leaf stage.
  • Seedlings are initially slow-growing.

Lisianthus Varieties to Grow

  • Eustoma, grandiflorum, lisianthus: clumps of gray-green foliage send up 18 inch stems topped with tulip-shaped, 2 to 3-inch flowers in purplish-blue, pink, or white; plants bloom all summer; dwarf cultivars grow 6 inches tall; grow tall cultivars for cutting; cultivar ‘Flamenco’ is drought tolerant.

Leave a Reply

Your email address will not be published. Required fields are marked *

This site uses Akismet to reduce spam. Learn how your comment data is processed.

Euphorbia cushion spurge

How to Grow Cushion Spurge – Euphorbia polychroma

Filipendula rubra

How to Grow Filipendula — Queen-of-the-Prairie