Syringa vulgaris in commerce today. Lemoine's "French lilacs" extended the limited color range to include deeper, more saturated hues, and they also introduced double-flowered "sports", with the stamens replaced by extra petals. These cultivars have gained the Royal Horticultural Society's Award of Garden Merit: Syringa vulgaris Syringa vulgaris (lilac or common lilac) is a species of flowering plant in the olive family Oleaceae, native to the Balkan Peninsula, where it grows on rocky hills. This species is widely cultivated as an ornamental and has been naturalized in other parts of Europe (including the United Kingdom, France, Germany, and Italy), as well as
Trial garden flowering season, and disease or pest tolerances or resistance. Vegetables are judged looking for such traits as speed to harvest, total yield, fruit taste, fruit quality, ease of harvest, plant habit, disease, and pest resistance. Trial garden A garden grown specifically for the purpose of testing and evaluating plants is called a trial garden. Universities, plant breeders, and garden-industry companies frequently have trial gardens, as do many private and public botanical gardens and professional garden journalists. In the classic trials model, newly developed varieties of plants are compared with the closest similar industry standard plant throughout their life cycle—from germination/propagation