Searching cultivars

Lilac (Syringa Purple Haze)
Common Lilac (Syringa vulgaris 'Adelaide Dunbar')
Common Lilac (Syringa vulgaris 'Agincourt Beauty')
Late Lilac (Syringa x josiflexa 'Agnes Smith')
White Persian Lilac (Syringa persica 'Alba')
Common Lilac (Syringa vulgaris 'Alba')
Common Lilac (Syringa vulgaris 'Albert F. Holden')
Preston Lilac (Syringa 'Alexander's Pink')
Lilac (Syringa 'Alice Eastwood')
Common Lilac (Syringa vulgaris 'Aline Mocqueris')
Lilac (Syringa vulgaris 'Aloise')
Common Lilac (Syringa vulgaris 'Alphonse Lavallee')
Common Lilac (Syringa vulgaris 'Ami Schott')
Hybrid Lilac (Syringa x hyacinthiflora 'Anabel')
Common Lilac (Syringa vulgaris 'Andenken an Ludwig Spath')
Hybrid Lilac (Syringa x hyacinthiflora 'Angel White')
Dwarf Korean Lilac (Syringa pubescens subsp. pubescens Flowerfesta® Purple)
Dwarf Korean Lilac (Syringa pubescens subsp. pubescens Flowerfesta® White)
Dwarf Korean Lilac (Syringa pubescens subsp. pubescens Flowerfesta® Pink)
Common Lilac (Syringa vulgaris 'Arch McKean')
Hybrid Lilac (Syringa x hyacinthiflora 'Asessippi')
Common Lilac (Syringa vulgaris 'Aucubaefolia')
Late Lilac (Syringa villosa 'Aurea')
Common Lilac (Syringa vulgaris 'Aurea')
Lilac (Syringa emodi 'Aureovariegata')
Common Lilac (Syringa vulgaris 'De Croncels')
Common Lilac (Syringa vulgaris 'Krasavitsa Moskvy')
Common Lilac (Syringa vulgaris 'Capitaine Baltet')
Common Lilac (Syringa vulgaris 'Charles X')
Common Lilac (Syringa vulgaris 'Charles Joly')
Common Lilac (Syringa vulgaris Crystal White™)
Hybrid Lilac (Syringa x hyacinthiflora 'Clarke's Giant')
Common Lilac (Syringa vulgaris 'Decaisne')