I have heard that adding sugar to the soil when planting tomatoes will make them sweeter. Is there any truth to this?
Certified GKH Gardening Expert
Not exactly. Sugar can help the tomato plant grow roots a little better. The sugar (much like in people) acts like a quick energy boost to the plant and can help give a quick shot to help grow roots. More roots means a healthier plant and this means better tasting fruit.
But, just like people, too much sugar can hurt the plant, so use this trick sparingly.