Coleus is an annual foliage plant that grows in USDA zones 4 through 10. While they do flower, coleus plants are most famous for their impressive and vivid leaves that remain an attraction outside of the growing season.
It is ideal to start coleus seeds indoors for the best establishment. Sow seeds into cell packs with a sterile starter mix. Press seeds into the soil but do not cover them: light is needed for germination. Keep soil at a temperature of 70-75F degrees and keep moist until germination.
Under these conditions, seeds will germinate in 10-14 days. After all danger of frost has passed, seedlings can be transplanted directly into the garden 12 inches apart or into containers. Grow in rich and moistened soil in an area of partial sun. If growing indoors, coleus plants prefer a bright window.
USDA Zones: 4 - 10
Height: 12 inches
Bloom Season: Spring through fall
Environment: Partial shade to full shade
Soil Type: Moist, well-drained, pH 5.6 - 7.5
Deer Resistant: Yes
House Plant: Yes
Latin Name: Coleus
Temperature: 70 - 75F
Average Germ Time: 10 - 14 days
Light Required: Yes
Depth: Do not cover
Sowing Rate: 2 - 3 seeds per plant
Moisture: Keep seeds moist until germination
Plant Spacing: 6 - 9 inches