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How to stop Black Peppermint foliage from turning green

Mint    None Given

I bought a Black Peppermint plant a few weeks ago. It's very healthy but all the new growth is green rather than the purple-black foliage it had originally. Does anybody know how to retain the darker leaves?


Posted by: James Edwards (1 point) James Edwards
Posted: June 17, 2016


Dr. Ravishankar Narayana commented,
It will be easy for us to diagnose if you upload images of plant and leaves. Thanks
over 3 years ago.

James Edwards commented,
It's not a disease or anything, just a kind of reversion I guess. I'm wondering if the leaves will darken as they mature.
over 3 years ago.



Answers

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I believe the new foliage will always be a lighter color and while it matures they become darker. Give it time and it should grow in nicely. Either way, the flavor should be the same no matter what.


Posted by: Kathryn Fiedler (72 points) Kathryn Fiedler
Posted: June 17, 2016


James Edwards commented,
Thanks Kathryn, I'm going to leave it for now and see what happens.
over 3 years ago.



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Another factor is light and fertilizer. nutrient deficient plants tend to produce more alternative colors. Where I work we have found that more fertlizer (primarily N and P) means less purple from purple leaved plants. if they are in a low light situation they will also produce less anthocyanins (purple/black or brown coloration).


Posted by: Gregory Inzinna (3 points) Gregory Inzinna
Posted: June 22, 2016


James Edwards commented,
Thanks Gregory. I might try some in depleted soil in the future then. I've noticed the leaves aren't as pungent since I potted it on so I guess using less rich soil could help with the intensity of the smell too.
over 3 years ago.



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