Roly-poly Care

Coleus plants grow best in soil that is consistently moist though not soggy. The soil should not remain wet all the time, but long dry spells will slow the plants’ growth, and the leaves will start to turn brown around the edges. Mulch will help the soil retain moisture longer, but don't use cedar mulch, which can be toxic to coleus. Also, don't let the mulch touch the stems, as it can promote rot and hide slugs.

To get full, bushy plants, pinch out the growing tips when the plants are about 6 inches tall. You can do this a few more times if you like, but after the plants start sending up flower stalks, you’ll be pinching out these stalks and getting the same results as pinching the tips.

If you have rich soil, you may not need to feed coleus plants at all. If you have poor soil use a balanced fertilizer mixed at half strength monthly. You’ll get the best color from your coleus leaves if you go easy on the fertilizer.

Coleus is a classic part shade to full shade plant, but light exposure depends on the variety. The old-fashioned seed-grown coleus does best in part shade to full shade, but the newer vegetatively cultivated varieties have their best color if grown where they can receive more sun. However, it also depends on your climate. If you live in a hot, dry area, all types will need some shade, especially in the afternoon. In cooler, shorter-season areas, the shade coleus will need more sun exposure to help them warm up.

Coleus prefers a consistently moist, rich, loose soil. Before planting, amend the soil with compost or another organic material. For potted plants, any good-quality peat-based potting mix will work fine.

As a tropical plant, coleus thrives in hot, humid conditions. In temperate climates, the barest hint of frost will spell the end of the plants. Make sure to take cuttings of any favorite plants before the weather turns cold.

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