Your search for lilac found the following advice articles...

10 Fun Facts About Lilacs

Considering Winter Conditions While Planting

Deer Resistant Trees & Shrubs

All About Astilbes

Dazzling Spring Blooming Shrubs Snubbed by Deer

Shady Characters: Awesome Astilbes

Heavenly Scented Lilacs

Enjoy Months of Blooms with 'Bloomerang' Lilac

Butterfly Gardens

Using Fragrant Plants in the Landscape

Plants for Clay and Moist Soils

Hedging & Screening with Trees and Shrubs