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Square Foot Gardening Forum
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Tomato Leaves Turning Purple Toplef10Tomato Leaves Turning Purple 1zd3ho10

Hello Guest!
Welcome to the official Square Foot Gardening Forum.
There's lots to learn here by reading as a guest. However, if you become a member (it's free, ad free and spam-free) you'll have access to our large vermiculite databases, our seed exchange spreadsheets, Mel's Mix calculator, and many more members' pictures in the Gallery. Enjoy.

Tomato Leaves Turning Purple I22gcj10Tomato Leaves Turning Purple 14dhcg10

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Tomato Leaves Turning Purple

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Post  CapeCoddess 3/31/2013, 3:16 pm

I just noticed while potting up my tomato seedlings of 7 different types, that all of them are purple on the undersides of the leaves. When I looked it up I found a few possibilities: a phosphorus deficiency, a nitrogen overload, a common trait to the type, or they are cold which they will grow out of.

They live in mid 50's at nite and when I'm at work. If I know they will grow out of that I can live with it. But if it's a deficiency or overload I really need to something.

Has anyone else had this happen? What did you do?

CC



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Post  camprn 3/31/2013, 3:40 pm

If you have used a good compost blend in your Mel's mix in your garden, it should not be a problem once you transplant them. If you must wait quite some time to transplant your tomatoes into the outside garden, perhaps a small amount of weak liquid fertilizer will see them through.

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Post  CapeCoddess 3/31/2013, 4:11 pm

Hmm...don't have any fertilizer, and they won't be going out for 3 or 4 more weeks. But I just potted them up into an brandy new batch of MM, so maybe the fresh compost hit will help? If not, maybe they'd like a very diluted compost/seaweed/urine smoothie? Or how would you make a fertilizer out of household ingredients?

CC
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Post  Turan 4/1/2013, 12:48 am

Skim chocolate milk is pretty high in phosphorus.

http://kidneyschool.org/pdfs/mod9/PhosphorusInFoods.pdf

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Post  walshevak 4/1/2013, 8:06 am

CapeCoddess wrote:Hmm...don't have any fertilizer, and they won't be going out for 3 or 4 more weeks. But I just potted them up into an brandy new batch of MM, so maybe the fresh compost hit will help? If not, maybe they'd like a very diluted compost/seaweed/urine smoothie? Or how would you make a fertilizer out of household ingredients?

CC

I expect it will give them a boost. I just up potted all my peat pods into cups of MM for the same reason, nutrients.

Kay

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