They grow relatively quickly and can live for several years when kept inside.
Vibrant and low-maintenance, these plants are a popular choice.
When growing coleus, keep in mind that these plants are toxic to people and pets.
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Can You Grow Coleus Inside?
With proper watering, coleus plants thrive in typical indoor surroundings.
Temperature and Humidity
Coleus plants prefer an average temperature above 60 F in the summer.
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In winter, they can tolerate a slightly lower temperature, though they should always be kept about 50F.
A coleus plant’s soil should never be allowed to dry out.
To combat this, prune the plant by pinching off leggy growth.
The Spruce / Kara Riley
This should result in more growth toward the base of the plant and a more bushy look.
Terra-cotta could also be used with soil that retains some moisture.
Either way, a drainage hole is crucial.
The Spruce / Kara Riley
Potting Soil and Drainage
Plant your coleus in a soil mixture that is moist but well-draining.
Potting and Repotting
A large coleus plant can reach between two to three feet in height.
Typically, coleus plants will only grow as large as their currentpotallows, and will not outgrow their space.
They can also be harmed by temperatures above above 100F.
A few nights under 60F won’t kill the plant, but a hard frost might.
Look over your coleus carefully for outdoor pests before bringing it back into your home.
You may spot the occasional sign ofmealybugs, aphids, or spider mites on your plant.
Coleus can easily be grown from seed.
Once the seedlings are a few inches tall, transplant them into pots with regular potting soil.
Either method will work, but coleus leaves don’t like to be wet.
If you are watering from the top, avoid getting moisture on the leaves.
Otherwise, you canbottom waterthe plant to see to it the foliage stays dry.
North Carolina State Extension.
