Spiræas.—Of these, S. bella, bullata, canescens, decumbens, cantoniensis,* discolor,* japonica, var. Bumalda,* tomentosa, var. alba.
Staphylea colchica.
Symphoricarpus racemosus (Snowberry).
Syringa (Lilac).—S. persica* (Persian Lilac), and S. vulgaris* and varieties.
Tamarix.—T. gallica, T. hispida, and T. odessana,* a very fine August flowering shrub.
Tilia (Lime).—T. argentea, T. cordata, T. platyphyllos, and T. vulgaris,* the best of all.
Ulex (Furze).—U. europæus and var. fl. pl.*
Ulmus (Elm).—U. campestris* and U. montana.*
Vacciniums.—Of these choose V. arboreum, V. corymbosum, V. Myrtillus, and V. pennsylvanicum,* very fine for drooping over rocks in rock garden; V. Vitis-idæa and the variety variegata, a pretty variety of this native shrub.
Veronica.—Of these the most satisfactory are V. amplexicaulis,* Armstrongii,* buxifolia,* chathamica,* Colensoi,* cupressoides,* c. variabilis*—grown in poor soil and well exposed, this variety of V. cupressoides is very fine both in summer and winter—decumbens,* epacridea,* glauco-cærulea,* Hectori,* Kirkii,* ligustrifolia,* monticola,* pimeleoides,* pinguifolia,* rakaiensis,* salicifolia,* Traversii.* The above are hardy Veronicas. They also happily include many of the best. Other species are good plants out of doors during summer; they are, however, best lifted early in October and housed till May, or they may be covered in severe weather. Cold winds do most mischief.