How long do I have to wait to plant cucumber plants outside?

Check with your local nursery.

Cucumbers like warm weather and soil. I wait until my soil is close to fifty degrees before planting most of my veggies and that works really well for me. You at least want the soil to warm up and not have a chance of frost or freeze and have to cover them and hope they don't get bit, cucumbers have a lot of water in the vine.

When your Evening low is 50 degrees in the shade, that is when you plant. Cucumbers like shade

Hi there, check your local extended weather forecast and once you see that the low temperatures are going to be above 50 for the next 10 days or so, it's probably safe to plant your cucumber plant outside. Keep an eye on the weather though and if it looks like you might have a frost, be sure to cover your plant.

This is the ultimate and super easy guide to determine your plant hardiness zone, your frost dates, and also when to start planting indoors and outdoors. Plus lots of great resources. Hope this helps and happy gardening! Hugs, Holly

https://pinkfortitude.com/sow-and-plant-seeds/