Radish leaves turning red

livelydirt(Zn 4, Lively, ON)March 19, 2013

Playing with growing radish indoors under lights while there is too much snow outside yet. Plants are starting to bulb up, but the borders of the leaves are turning red. Any soil doctors out there with solutions? Thanks

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It could be a phosphorus deficiency...especially if it's mostly under the leaf or you notice the green of the leaf going to a green/blue hue along with the red.

    Bookmark   March 19, 2013 at 9:50PM
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That would be my guess too. Are they cold? Some plants have a difficult time absorbing P if they are young and to cold. It happens to a few of my annuals every year if I plant them out a to early. They recover when they warm up.

    Bookmark   March 20, 2013 at 8:41AM
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livelydirt(Zn 4, Lively, ON)

The little critters aren't cold. 70F Thought I might add a photo for clarification

Here is a link that might be useful: Lively Dirt - The Garden Blog

    Bookmark   March 20, 2013 at 9:06AM
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Those look like beets to me.

    Bookmark   March 20, 2013 at 3:06PM
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flora_uk(SW UK 8/9)

No - the leaves are clearly rough and lobed at the bottom of the leaf blade, unlike beets. They're just discoloured radishes.

    Bookmark   March 20, 2013 at 3:57PM
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jean001a(Portland OR 7b)

Have they had any fertilizer? I ask because the pale color often says "We need nitrogen."

    Bookmark   March 20, 2013 at 5:23PM
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Looks like low P to me too, notice it's on the older leaves?

    Bookmark   March 20, 2013 at 10:55PM
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