Answer: Based on your description I am not sure what happened to your shrubs. It is possible that cold damage or other stress somehow prevented it from leafing out normally in the spring. But since I would have expected it to have releafed. It is possible they have not rooted well and so are not establishing the way they should. I would suggest you consult with the retailer where you purchased them and/or your county extension to trouble shoot. In the meantime, make sure the soil is evenly moist like a wrung out sponge, not sopping wet and not dried out. Do not be tempted to overfertilize to try to make them grow more, this would add more stress. Good luck with your dwarf lilacs, these are terrific plants.
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