If you are planing to save seeds, bag and hand pollinate cukes you are going to let mature. If you not saving seeds, don't worry about it. Cross pollination only affects seed saving. Insect pollinated plants need a at least a quarter mile of isolation.

Holy cow!!
I can't possibly separate them that far.
I guess I'll grow one variety per year.
Thanks.

Holy cow!! I can't possibly separate them that far.
I guess I'll grow one variety per year.

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So I guess you want to save seeds??? Are they hybrid varieties or non-hybrid varieties that will breed true?

As said above, CP doesn't affect the fruit. It only affects the seeds. So if not saving seeds you can grow as many varieties as you wish.

Dave

If you are saving seeds, you need to make sure no one else is growing cukes nearby if you don't want to bag blooms and hand pollinate. Doesn't matter if you only grow one variety in your garden, bees can easily cross yours with the ones your neighbor's growing five houses down.

As everyone's said and I agree with, this won't affect this year's cukes themselves. Just the seeds. You won't see anything different until you save the seeds from this year's cukes and grow them next year.

Yes, I have 3 heirloom varieties.
One is a really strange one I wanted to try for fun.
One is for eating and the other for pickling.
I wanted to save the seed and grow them out again and hopefully share some seeds with family.
I've always maintained 50' distances with my tomatoes but had no idea cukes were so different.
Appreciate the info.
Is there a chart somewhere that gives recommended distances of vegetables?
Thanks

Is there a chart somewhere that gives recommended distances of vegetables?
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Recommended growing distances

hi there gr8atweeds, i think you might find some of the pollination postings at the "squash and gourds" forum helpfull to your project, especially one by macmex with a pictorial on how to get pure pollination with squash, i think u can adapt it to cukes, lot of work but if you are dedicated, macmex's methods should work for you.
i wonder if other vines such as pumpkin or zuc can compromise pollination with cukes?