Now is the time to enjoy the fragrance and color of Winterthur’s lilacs in full flower in the Sundial Garden. This garden area was developed in the mid 1950s to create an April display of lilacs, quince, spiraea, and magnolia. The lilacs in flower now are hybrids of the common lilac, Syringa vulgaris.  Their colors range from light yellow and pink through many shades of lavender and blue, all with a delightful fragrance.