Syringa vulgaris, the Common Lilac has flower colors ranging from white to purple. These are some of the largest grown lilacs and the flower panicles are ones that we common reminisce about when we think lilacs. Single white flowering (Common White Lilac) and single purple flowering (Common Purple Lilac) are the old varieties that we find in the trade. The purple flowering common lilac may not always be purple, but may be shades from lilac blue to purple. Hybrids of Common Lilac are called French Hybrids. If you are looking for a true dark purple variety, chose Yankee Doodle Lilac, a French Hybrid that most often will exhibit true dark purple flowers.
Miss Kim Lilac is a hardy lilac from Korea that grows 6 to 8 feet tall and 5 to 6 feet wide. It exhibits purple buds that open to single pale lilac blue flowers. It is fragrant and does not grow as much sucker growth as the Common Lilac varieties. It is one of very few lilacs that have the burgundy-red fall color.
Dwarf Korean Lilac only grows 4-5 feet in height and 5-7 feet wide. It has a nice uniform growing habit. The plant flowers profusely and the flowers are fragrant. The flowers are pale lilac in color. There are also grafted tree forms of Dwarf Korean Lilac with rounded heads that grow to around 8 feet tall.
In recent years, there are other small grown lilacs that have been introduced. There is a Fairytale series that consists of a group of very hardy small lilacs that grow from 4 to 6 feet tall and up to 7 feet wide. (Some are wider than tall -depending on variety). Thumbelina Lilac and Tinkerbelle Lilac have single light pink flowers. Prince Charming Lilac has single, lavender-pink flowers, Sugar Plum Lilac has single, rose-pink flowers, and Declaration Lilac grows a little larger and has reddish-purple flowers. All have a distinct lilac fragrance.
Ivory Silk Lilac can be grown as a large shrub or small tree. We grow it mostly as a tree form. It grows only up to 25 feet high and 15 feet wide and has creamy white flowers in early July when most other lilacs are done blooming.
Josee Lilac is a unique small growing lilac that flowers mid-spring and then flowers sporadically throughout the rest of the summer. The flowers are fragrant and are light lavender in color.