I used to be a big fan of grafting, when the gardening wasn't glitched, but the problem with grafting is the amount of produce is drastically reduced, like my sim harvests one each from every grafted plant. My sims used to have huge gardens, grafted plants for the less needed produce and single plants for the most used, like onions. I had a great mod that increases the number of harvestables for each plant but I think it needs updating as it doesn't work for me anymore...phooey.
Again, thanks for all the discussions and ideas. <3