Hi ohio grower,

Cross polination will only affect the resulting seed. If you want to harvest "true" seed for next year you'll need to insulate the different varities from each other.

Bill

Here is a link that might be useful: Seed saving / Cross pollination link

How far apart should plants be to avoid cross pollination?

500 feet- you need to cover branches or plants with fine netting called tulle which you can find cheaply at Wal Mart

So even if you cover the plants with the netting, they have to be 500 ft away?

No, John means they need to be 500 feet away if you do not use tulle.

Chris

Correct-as Chris says