Answer: Cucumbers will grow best in full sunshine, in rich soil, with ample water. It's important to provide a trellis or some other support for the vines, to keep the fruits up off the ground (both for easier harvesting and to keep the fruits clean). Cukes that turn yellow indicate either a cultural or an insect problem. I'd remove the affected cucumers to allow the plant to produce new fruits. Make sure you water your plants well, and inspect the vines to make sure there are no insects feeding on the leaves or fruits. If you find any, squish them, or hose them off the plants. Harvest your cucumbers when they're still small and tender. Better luck with future crops of cukes!
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