Answer: Small, young lilacs naturally tend to be a bit sparse. They should increase in size and have more leaves each year. They may also take four or five years to become well established and bloom. In the meantime, make sure they are planted in a full sun location and are watered as needed to keep the soil moist but not soggy until they become established. A year round layer of several inches of organic mulch such as shredded bark along with an application of compost and/or a complete fertilizer such as 5-10-5 according to the label instructions each spring should help them along.
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