Coleus plants

I have several potted coleus plants and the stalks are hardening and turning brown. What is causing this to happen?

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1 Comment To "Coleus plants"

#1 Comment By Downtoearthdigs On 07/27/2017 @ 8:05 pm

Coleus will eventually produce woody stems. Gardeners often turn these plants into standards.
You can pinch out the side shoots and support the stem with a stake.
When the plant reaches the desired height you can pinch out the top growth and continue pinching back any side growth.

https://www.gardeningknowhow.com/ornamental/foliage/coleus/coleus-plant-care.htm ^[1]
https://www.gardeningknowhow.com/ornamental/foliage/coleus/coleus-plant-blooms.htm ^[2]
https://www.gardeningknowhow.com/ornamental/foliage/coleus/growing-coleus-in-a-pot.htm ^[3]

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[2] https://www.gardeningknowhow.com/ornamental/foliage/coleus/coleus-plant-blooms.htm: https://www.gardeningknowhow.com/ornamental/foliage/coleus/coleus-plant-blooms.htm

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