Growing Marigolds from Seed and Cross Pollination

How can I prevent my marigolds from cross pollinating with other marigolds of different varieties?  I want to harvest seeds that will grow and look just like their parents.  My yard is really small, so each of my marigolds (they…

What tomatoes do well in Toronto?

Hi, I have an allotment garden in Scarborough and have started tomatoes from seed. I have planted a variety however I was wondering which heirloom tomatoes generally do well in Toronto.…