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Drying leaves on (lemon) cucumber plants

Cucumber    NYC

These are my (lemon)cucumber plants. The one on the left is a cucumber plant. The other two pots are lemon cucumber plants. I've noticed the leaves are drying out from bottom up. The middle one looks like it's dying. I also noticed the female flowers are drying out before blooming. How can I help save them? What to look for? How long is their growing season? I live in NYC and watered them twice a day.


Posted by: michelle (5 points) michelle
Posted: August 6, 2015




Answers

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Can you get some close up pictures of some of the leaves - the plant on the right looks very blotchy like it may have downy mildew - a fungal infection which will need treated but it is hard to tell without seeing some close ups


Posted by: Lindsay McMenemy (9 points) Lindsay McMenemy
Posted: August 7, 2015




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Yes, some close up images would be good. From the provided images I think this plant is nutrient stressed. There is a lot of yellowing along the veins. And since the plant is in a pot I think it is likely root bound (meaning the roots are growing to the side of the container).

So, it needs nutrients. But as Lindsay said, it could be fungal diseases so close up images please


Posted by: David Hughes (68 points) David Hughes
Posted: August 9, 2015




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I agree that this is likely nutrient stress, from the light coloring on the leaves. Your pot may be too small, and it is constraining the root system. This happens a lot when big plants are grown in pots, because the root system simply doesn't have enough space to grow and take up the amount of nutrients needed to support the whole plant (even if the nutrients are there in the soil).

In other words: The size of the root system directly affects the amount of nutrients the plant can take up. Adding fertilizer to the pot will help to some extent, but the best way to increase the nutrients that the plant gets is to transplant it to a bigger pot (with fertile soil) so that those roots can really spread out to take advantage of the nutrients that are there. Happy gardening!!


Posted by: Annie Klodd (2 points) Annie Klodd
Posted: August 16, 2015




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