Crown Of Thorns
Q.

Why did my Crown of Thorns plant (potted) leaves turn white when I placed it outside?

Zone Picton, Ontario K0K 2T0 Zone 6a | beverleydaleboyd added on May 23, 2019 | Answered

This potted plant is several years old and was given to me in March 2019. I kept it indoors and it adjusted well. I placed it outside May 21 and the next morning the leaves had started to go white. Too cold? I have now brought it back in until I can find an answer. Thanks Dale

A.
A.Answers to this queston: Add Answer
Downtoearthdigs
Certified GKH Gardening Expert
Answered on May 24, 2019

If temperatures dropped too low; it certainly could be frost or cold damage.
Also when moving plants from indoors to outdoors you need to harden them off; gradually adjust them to the light change.
Give them a sheltered area to make the adjustment to outdoors; gradually increase it to a full sun location.
These articles will help you.

https://www.gardeningknowhow.com/houseplants/hpgen/move-houseplant-outside.htm
https://www.gardeningknowhow.com/houseplants/crown-of-thorns/crown-of-thorns-houseplant.htm
https://www.gardeningknowhow.com/houseplants/crown-of-thorns/growing-crown-of-thorns-outdoors.htm

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