Agnes Smith is an elegant variety of Canadian lilac with snow white flowers. They are sweetly scented, tubular, formed in more or less upright panicles. The difference between these and common lilacs is that panicles of Canadian lilac are not as clustered as on common lilac, flower 2-3 weeks later and thanks to the open flowers they make a nice and relaxed appearance on the first hot summer days.
Growing slower than common lilac they can be used as substitutes in areas where tall shrub would be a problem. Pruning is usually not recommended but if you need to trim or re-juvenile the plant do so immediately after flowering. Deadheading will increase number of flowers for the following year.
Canadian lilacs come from several hybridizing of syringe reflexa and syringe villosa, plus other varieties.
Lilacs can be grown in many soil types. For best result use reasonably fertile, moist but well-drained soil, preferably neutral or alkaline. Full sun for profuse flowering. Fully hardy to -45°C