Within 4 days, our vigorous Japanese Honeysuckle became 1/2 dried up. The leaves were curled and crispy, a few leaves with black spots. I don’t see the black vascular systems that are shown in online pictures. We are in Ontario and have experienced very hot days. I have cut back the plant where the leaves dried. There was a lot of leaf litter at the base of the plant, but the soil was not over-saturated, just moist. It is alkaline and compact soil which was amended with compost and Zeolite a year ago at planting. This plant experienced a huge growth spurt with the June rains. I am a Master Gardener from Eagle, ID and this soil is very different. I am puzzled. Can you help? Attached are some pictures of stem cross-cuttings and leaves.