common lilac

Common lilacs need to be watered consistently to ensure best growth. Water the plant in the morning, and soak the soil thoroughly until water runs out of the bottom of the pot. Within a week of planting, and then at least once every 1-2 weeks after that, water deeply to saturate the soil down to a depth of 8” or more. It is best to irrigate slowly as a drench and avoid spilling water onto the leaves. During extreme drought, water more frequently to keep the soils moist but not soggy.

Common lilac (Syringa vulgaris 'Président Grévy') requires full sun for 6-8 hours each day in order to stay healthy. Ideally, the plant should receive sunlight in the morning, when the intensity of the sunlight is lower, as direct, strong sunlight can cause wilting or stress. Additionally, common lilacs prefer some afternoon shade to protect them from the intense heat and sunburn.

The common lilac (Syringa vulgaris 'Président Grévy') should be pruned during the late winter or early spring before the buds break dormancy. Pruning should be limited to removing weak and damaged stems, any overcrowded or overly-long branches, and stems crossing each other. Pinch or cut the tips of the stems to the desired size and shape. Prune the main branches back to no more than 1-third their length. This will encourage dense branches and better blooming in the future. Replenish mulch around the base of the plant if needed.