The Josee lilac (Syringa vulgaris 'Josee') is a three-way cross between S. meyeri, S. patula and S. microphylla. This dwarf lilac is advertised as a reblooming variety. However, it is more inclined to rebloom in cooler c... More »

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The Albert F. Holden lilac is a perfect shrub for early spring bloom. The dark purple-colored petals have a silvery blush, giving the flowers a bi-colored hue. Often reaching a mature height of 15 feet, this lilac variet... More »

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Pruning Persian lilacs is essential for keeping the plants healthy and encouraging growth. Without regular pruning, new blooms are slow to form and the lilac bush may begin to look messy or unattractive. Using a pair of ... More »

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The Vanhoutte spirea, or S. vanhouttei, commonly known as a bridal wreath spirea, is a flowering, deciduous shrub native to China, Canada and the United States. The Vanhoutte spirea is a hybrid cross between the Three-lo... More »

www.reference.com Home & Garden Gardening & Landscapes Outdoor Plants & Flowers

Lilacs fail to bloom when they receive too little sun or water, excess fertilizer or too much pruning, according to Gardens Alive! Climate also affects lilacs, which need cold weather to thrive. More »

www.reference.com Home & Garden Gardening & Landscapes Outdoor Plants & Flowers

Lack of sufficient sunlight and too much nitrogen in the soil are reasons a lilac blush does not flower. Another reason a lilac bush does not flower is an incorrect amount of pruning at the wrong time. More »

www.reference.com Home & Garden Gardening & Landscapes Outdoor Plants & Flowers

Dwarf lilac bushes require less pruning than standard-sized shrubs and trees. They should be pruned throughout the year. Items needed to prune a dwarf lilac bush include rubbing alcohol and pruning shears or loppers. More »