Q.Why Do My Tomatillo Plants Flower, but Not Produce?
A tomatillo plant of mine was recently transplanted from a container to the ground and now sits in direct sunlight. It has many flowers and is spreading out and growing nicely, but I have yet to see an actual tomatillo on it. I saved it from a farm down the road (it sat in a potato patch and got yanked out), and when it was pulled, it had at least 8 good sized tomatillos with many other flowers. It looks happy but it just hasn’t produced and it’s been about two months. I don’t think it’s a pollination issue because this plant is standing beside two other tomato plants that are producing just fine. Thanks!

Certified GKH Gardening Expert
Most varieties of tomatillo are not self pollinating. They need another tomatillo plant to pollinate them. You may have a variety that is like this. Here is more information:
https://www.gardeningknowhow.com/edible/vegetables/tomatillo/growing-tomatillo-plants.htm