How-to Guide
How to Grow Coleus
The short answer
Grow coleus for its leaves: most varieties color up best in partial shade (sun-bred cultivars excepted — non-sun-tolerant types bleach in full sun), in moist, well-drained soil. It is completely frost-tender, so plant out only after nights are reliably warm.
Two habits keep plants looking good: pinch the growing shoots of young plants often to force branching and dense foliage, and shear or pinch off the flower spikes that appear in late summer — if coleus is allowed to set seed the plant declines. Before the first fall frost, take cuttings of favorites; they root easily in a glass of water and overwinter on a bright windowsill as next year's stock.
Light: read the tag
Classic coleus is a part-shade plant — it even tolerates full shade, though deep shade makes growth leggy and colors duller. Many newer cultivars are bred for sun, but varieties that are not sun-tolerant will bleach and discolor in full sun.
The practical rule: unknown or older varieties go in bright shade or morning-sun spots; only plant labeled sun-series coleus in all-day sun, and give sun-grown plants steady moisture.
Coleus is killed outright by frost, so wait until after the last frost — and warm nights — to plant out, whether in beds, containers, or hanging baskets.
Pinching: tips and flower spikes
Pinch the growing shoots of young plants frequently to encourage branching; an unpinched coleus runs up as a sparse single stem, while a pinched one builds the dense mound the plant is grown for.
In late summer, spikes of small blue flowers appear. Most gardeners find they detract from the foliage, and if the plant is allowed to go to seed it declines — so shear or pinch flower spikes off as they form to extend performance into fall.
Overwinter it as cuttings
Coleus roots easily from stem cuttings at any season, which makes overwintering trivially cheap: before the first fall frost, cut 4–6 inch shoot tips from your favorite plants, strip the lower leaves, and stand them in water or stick them in moist potting mix.
Pot the rooted cuttings and keep them in a bright window through winter — Clemson specifically recommends taking cuttings from especially prized cultivars since the parent plants will be killed by the first frost. Pinch the indoor plants occasionally so they stay compact.
In spring, once nights are warm again, take fresh cuttings from the overwintered stock or harden off the plants themselves and set them out. One windowsill plant can supply a whole bed.
Sources
Reviewed 2026-07-18. We cite university Extension, government, and established horticultural sources — and never invent pesticide rates or dangerous treatments.
- Clemson Cooperative Extension HGIC — Coleus — Most coleus prefer partial shade and non-sun-tolerant varieties bleach in full sun; tender annuals killed by the first frost; pinch growing shoots frequently to encourage branching; shear or pinch back flowers or the plant declines after seeding; roots easily from stem cuttings at any season; take cuttings of prized cultivars before the first fall frost.
- North Carolina Extension Gardener Plant Toolbox — Coleus scutellarioides — Thrives in part shade and tolerates full shade though full shade can lead to leggy growth; may wilt in full sun (some cultivars bred for sun tolerance); hardy only in zones 10a–11b; pinching stem tips makes plants bushier; cuttings root easily in water or potting soil; needs bright light indoors.