Lisianthus Flower Seeds

Lisianthus Flower Seeds

11 varieties

11 products

Learn how to plant

How to Plant Lisianthus Flower Seeds

Fast Facts

Planting season
Early Spring, Spring
Life cycle
Annual
Sowing method
Start Indoors
Light
Full Sun
Water needs
Average
Planting depth
1/8 inch
Spacing
4 to 8 inches
Mature height
24 to 36 inches, 27 to 36 inches, 36 inches
Hardiness zones
2 to 10
Bloom season
Spring through Fall, Summer through Fall

Ranges cover every variety in this group. Check the product page for the exact figures.

About Lisianthus Flower Seeds

Lisianthus Flower Seeds grow in full sun positions. Flowering runs spring through fall or summer through fall. The figures below are the ones on the packets in this group; each product page carries the exact numbers for that variety.

When to plant

Plant in early spring, spring. Start seed indoors and move the seedlings out once the danger of frost has passed. Hardy in zones 2 to 10 — your local frost dates decide the exact week.

Where to plant

Choose a site in full sun. Water needs are average once the plants are established. Free-draining soil matters more than rich soil; seed sown into ground that stays wet rots before it germinates. Allow 4 to 8 inches between plants so air can move between them.

How to plant

Sow 1/8 inch deep, spaced 4 to 8 inches apart. Water gently to settle the soil, then keep the surface evenly moist until seedlings or shoots appear. Indoor starts do best in warmth and bright light; harden the seedlings off over a week before planting out.

How to care

Keep watering average, at the base of the plant rather than over the leaves. Grown as an annual, so plan to sow again next season. Flowers appear spring through fall or summer through fall; cutting or deadheading regularly keeps more coming.

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