[–] 9598073? 0 points 3 points 3 points (+3|-0) ago
I've heard that while the tomatoes are beginning to ripen, depriving the plant of water will cause the sugars to concentrate in the fruit and therefore, be sweeter once picked.
It could be something else in the soil, like heavy metals, or something that's sprayed on the plants. It could also the tomato varietal you're growing. What type of cherry tomato is it?
[–] BilltheFlowerPotMan [S] ago
Pot grown in a standard mix, no sprays. I can't remember the name of it, round red bout as big as a thumbnail.
[–] 9600187? 0 points 1 point 1 point (+1|-0) ago
If nothing is amiss, it's probably environmental. Tomatoes like acidic soils to grow, but I've heard that once the tomatoes are ripening, slightly more alkaline soils will produce sweeter tomatoes.
Maybe add a pinch of lime to the pot, and cut back on the watering when there's a nice size cluster ripening. And, of course, report back with your findings!
[–] DependasaurusRex 0 points 2 points 2 points (+2|-0) ago
Perhaps too much nitrogen in the soil if not using weed killer. Something I read a long time ago, but could be wrong.
[–] Le_Squish 0 points 2 points 2 points (+2|-0) ago
Weed killer will definetly do it. Doesn't have to be direct application, could blow in from another yard or run off. Have you noticed any yellowing or spots on the leaves?
[–] BilltheFlowerPotMan [S] ago
They were in a very windy spot and yes there could have been weed killer used on the street nearby.