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Compost or leaf litter are the best fertilizers for Japanese tree lilacs (Syringa reticulata).

Specifically, Japanese tree lilacs fluorish in a range of environmental and soil conditions. In fact, they may not need fertilizer applications when they grow in grass, ground cover, lawn or turf that is on a regular fertilizer schedule. But for those who prefer fertilizer treatments, Japanese tree lilacs respond well to the slow but direct and steady release of nutrients back into the soil that is afforded by fertilizing along the drip line or mulching with compost or the tree's own leaf litter.

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14y ago

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