HelpfulGardener.com

Just wondering if green tomatoes are good enough for seed saving, or do red tomatoes work better?

Seeds are not mature in green tomatoes, may not be viable.

IF the green tomato “ripens” indoors, then the seeds will have better chance of being viable. I believe you are still likely to find greater number of “floaters” [= non-viable / immature / empty seeds] and even the “sinkers” [= viable may seeds ] have lower germination % or be less vigorous as seedlings.

Best seeds for saving would be from unblemished fully mature colored (not necessarily ‘red’ BTW)/ripe, full-sized (not runty) fruit from vigorous healthy plant and preferably from more than one plant of the same variety for genetic variation/vigor. And if I were to be even pickier, from fruits that developed from bagged blossoms to isolate them against accidental cross pollination.

(...that’s not to say these are what I save seeds from every time... )

thanks