Q. I have two lavender plants by our front porch. I’m not sure when to trim them. One time in the fall, I pruned them back and it killed them. I replaced those and the plants are now about two years old. Should I trim/prune them in the fall or spring? If so, how much? – C.G., Knox County A. Since lavender is only marginally hardy in our area, I would wait to prune them […]
Q. This plant came up in my back yard last summer. It grew to over 13 feet tall. I would like to know if you can identify it. – R.D., Lanesville, Ind. A. That is an impressively tall volunteer! It is difficult to tell much detail in the photo about the flower structure, but considering the size, stem color and foliage, one possibility would be giant ironweed, Veronia gigantea. While this plant commonly reaches up […]