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InsightHorizon Digest

How long does it take for a coleus to grow

Author

James Bradley

Updated on March 31, 2026

Coleus can benefit with bottom heat. Seedlings emerge in 12-21 days. As soon as seedlings emerge, provide plenty of light on a sunny windowsill or grow seedlings 3-4 inches beneath fluorescent plant lights turned on 16 hours per day, off for 8 hours at night.

Are coleus slow growing?

The plants are fast growers, even in midwinter, and they look best when stems are short and leaves are overlapping. Cut back a coleus any time, as much as you like. It will respond to pruning by growing even faster.

Is coleus hard to grow?

Coleus is probably one of the easiest plants to grow and propagate. … Coleus can be added to beds and borders for interest or grown in containers. They need fertile, well-draining soil and usually perform best in areas with partial shade, though many varieties can also tolerate sun.

How can I make my coleus grow faster?

Keep them indoors in a sunny window, and wait to move them outside until nighttime temperatures stay in the 50s. Coleus won’t grow any faster if you put them out early, and you could actually stunt their growth or they might die, even if temperatures stay above freezing.

How long does a coleus plant last?

While the lifespan of an average coleus plant is one year, you can prolong its life by pruning. Watch out for any small flower buds and prune it before the flower buds bloom. This is because once the plant starts producing flowers and seeds it will soon die.

Why is my coleus not growing?

Diseases and pests can stunt the plant’s growth. Poor drainage is the biggest threat because it causes root rot. Coleus can tolerate a drought, but it doesn’t tolerate being wet all the time. … If the plant is in a pot, then repot it in a container with more drainage holes and in a mixture of peat and perlite.

Does coleus grow fast?

If you plant coleus in containers, you may want to bring it indoors during the winter to help it survive. How fast does coleus grow? Coleus quickly grows to full size, potentially up to 36 inches high, in a single season.

Should you let a coleus flower?

Coleus plant flowering signals the end of the plant’s life cycle, and plants usually die soon after they are allowed to produce blooms. … You can just leave them on and enjoy the plant as an annual, or take steps to encourage thicker growth and continued life in a greenhouse or cold frame.

Does coleus like sun or shade?

Coleus thrive in cool, evenly moist, well-drained soil. Consistent moisture is good, but soggy conditions cause root disease. Watering should complement available sun. Some modern coleus varieties handle full sun, but most still flourish with at least dappled shade and direct sun limited to morning hours.

Is coleus a houseplant?

Coleus is a petite houseplant grown almost exclusively for its bold, colorful foliage. … Coleus plants are native to Asia and Australia and boast a variety of pigmented leaves, in shades of green, pink, white, cream, yellow, maroon, and purple.

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Is coleus indoor or outdoor plant?

Although coleus is typically grown outdoors as an annual, its vibrant leaves provide many months of enjoyment indoors if growing conditions are just right. In fact, coleus plants respond well to potted environments. Read on to learn more about growing coleus as an indoor plant.

Will coleus come back every year?

Taking a perennial to a location where cold winters kill it does not make it an annual. … Coleus is a perennial, a tropical shrub, that is not hardy except in warm, frost-free zones. Cannas are reliably hardy in the ground outside from around Zone 7 and upward (warmer.)

Is coleus toxic to dogs?

Like many other essential oils, the oil from the coleus is toxic to your dog and can be absorbed through the skin immediately, causing irritation and possible burns to the skin and depression of the central nervous system.

Why is my red coleus turning green?

Your coleus plant is most likely turning green because it isn’t getting enough light to maintain its original color. Coleus plants need lots of sunlight to keep their color, so if they aren’t getting enough, you’ll need to give it more to restore their beautiful hues.

Is coleus an outdoor plant?

Plant coleus in a sunny or partly shaded spot, in moist but well-drained soil. Coleus are low growing, so they look best at the front of a border, combined with other bedding plants, or in pot on a patio. If you’re growing coleus as a house plant, grow it in a bright spot that gets a little direct sun.

What grows well with coleus?

  • For the shade-loving plant, choose hosta, fuchsia, fern, begonia, impatiens, sweet potato vine, coral bells.
  • For mix and match color, combine coleus with million bells, petunia, bacopa, lobelia, marigold, daisy, basically any flowering plants is an excellent choice.

Will coleus survive winter?

During the winter, coleus will lose its color. The plant that you brought indoors will lose some leaves and get straggly. This time of year the plant is entering its dormant stage and as tempting as it is, do not pinch it back. The goal at this point is to keep it alive by watering and monitoring for insects.

How long does it take coleus to root in water?

The easiest method is to root Coleus cuttings in water. 60 to 75 degree room temperature is ideal. BTW, here’s a super cool trick: how to grow lots of these shade loving plants indoors in glass bottles and water! Most of the time there’s no need to change water. Roots will start forming in 2-3 weeks.

Can coleus grow in pots?

Plant your coleus in a sturdy container that won’t tip over if it does get to be 2 feet tall. Fill your container with well-draining soil and fertilize moderately. Be careful not to over fertilize, though, or your coleus in pots may lose their brilliant color. Water regularly, keeping the soil moist.

Why is coleus red?

When you see a Coleus with foliage ranging from pink through red, pink and purple it’s because of pigments called anthocyanins.

Do butterflies like coleus?

Plants that attract butterflies Some of the many plants that butterflies prefer include those that you wouldn’t ordinarily think about. Gardeners generally harvest carrots before they go to flower or they pinch the terminal growth of coleus so it gets bushier rather than let it flower.

Are coleus plants annuals or perennials?

Coleus is technically a tender perennial and not cold hardy in much of the country, so many gardeners simply grow it as an annual. But even in wintry climes, you can keep favorite plants going by taking cuttings in early fall to propagate indoors.

Do coleus need to be pinched?

It’s easy: you just need to pinch them. It may seem counterproductive to cut back a plant that you want more of, but pinching many annual and tender perennial plants—like coleus—encourages branching and full, bushy growth.

How big does coleus get?

Coleus comes in three forms: upright, rounded and trailing. They range in height from 6 inches to 3.5 feet and grow 1 to 3 feet wide.

How do I make my coleus more colorful?

Morning sun and afternoon shade is the rule of thumb for any coleus. But breeders have been introducing lots of sun-tolerant varieties that can take a lot more light than many of the older hybrids. Most have “solar” or “sun” in their names, and sport brighter reds and more vivid greens in their foliage.

How long does it take for coleus seeds to germinate?

Sowing Seed Indoors: Coleus can benefit with bottom heat. Seedlings emerge in 12-21 days. As soon as seedlings emerge, provide plenty of light on a sunny windowsill or grow seedlings 3-4 inches beneath fluorescent plant lights turned on 16 hours per day, off for 8 hours at night.

Can I grow coleus in water?

As coleus plants have grown in popularity their prices have increased accordingly, but coleus plants are easy to propagate and grow in water, allowing you to create a colony of the handsome coleus houseplants. Take a six-inch cutting, and remove the leaves from the bottom four inches.

What is Coleus used for?

When taken by mouth, coleus is used to treat allergies, dry eye, skin conditions such as eczema and psoriasis, obesity, painful menstrual periods, irritable bowel syndrome (IBS), urinary tract infections (UTI), bladder infections, advanced cancer, blood clots, sexual problems in men, trouble sleeping (insomnia), and …

How long will coleus live outside?

In a frost-free area, coleus normally lives for several years. In USDA zones 10 through 11, the winter is mild enough to plant coleus in the ground. Coleus appreciates moist soil that drains well. Keep it out of intense sun, as it easily scalds.

Does coleus need a lot of water?

Coleus needs to be kept moist, and those planted in containers will need water more frequently than those in gardens. Where outdoor plants should be watered daily, especially in high heat or dry weather conditions, indoor plants should be watered every few days.

How do you prepare coleus for winter?

Start by placing your coleus in bright shade on days when temperatures are above sixty degrees. Bring them back in at night if temperatures drop below 55 degrees F. Gradually ease the plants into more sun, making sure to keep up with their increasing water needs. Don’t drown them, though.