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I fertilized and watered well today. It's early spring here. Had a look at the vegie patch at night to find some of the half grown brassicas are showing tiny drops of sea thru liquid at leaf margins where the veins meet the leaf margin. What is this phenomenon?

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This is called guttation. You can see it on plants grown indoors as well. The roots send water up to the leaves and under the right conditions the pressure is so much that water comes out of the leaves. You can find it occurring under conditions of high moisture levels in the soil. It is harmless and can be enjoyed rather than looked upon as something that needs fixing.

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