White Flowers 177 
numerous twigs are covered with pure-white flowers an inch across, 
having yellow stamens. Leaves small and light green. Related to 
the Snowdrop-Tree, Halesia, but surpasses it. Seeds hang in round 
balls resembling coffee. Handsome at all seasons, although the bloom 
is of but short duration. Perfectly hardy. 
Sumacu, Fern-leaved (Rhus glabra, var. laciniata). 3-5 ft. A low 
variety with finely cut foliage on long stems, whitish flowers. The 
chief beauty is the brilliant crimson hue of the leaves in autumn, when 
it is compared to a ball of fire. It is best grown in the form of a low 
bush with several stalks springing from a common root. Prune tips 
to get a spreading top. Dry sunny situation. 
SumacH, Smooth (Rhus glabra). Whitish-green blossoms in large 
branching heads; compound leaves, becoming a rich crimson in autumn; 
fruit is made up of velvety berries arranged in cone-shaped spikes, 
The whole appearance is very showy. It suckers badly, taking posses- 
sion of entire fields, and is hard to uproot. Grows in dry sterile situa- 
tions; excellent to plant about the base of trees. 
Syrinca, Mock Orance (Philadelphus coronarius). 8-12 ft. A 
hardy shrub making a large bush with many branching stems, large 
white fragrant flowers. As it flowers on the wood of the previous year, 
prune after blooming, thus encouraging new growths for the fol- 
lowing year; propagated by seeds, cuttings, layering or division of the 
root. 
WEIGELIA (Diervilla florida, var. candida). 5-8 ft. A commonly 
cultivated shrub with cream-white funnel-shaped flowers; will grow 
in any soil, sending up many suckers, by which it may be increased. 
For pink and red varieties see Pink and Red Shrubs, June. 
WirnE Rop or Tree (Viburnum cassinoides). 8-12 ft. Flowers 
yellowish-white in crowded heads; fruit a rich deep blue, ripening in 
September. Prune to a bushy form; spreads from the root; prefers wet 
low ground. Mulch in summer if planted in a dry location. 
JUNE 
WHITE PERENNIAL HERBS 
ACHILLEA, SNEEZEWoRT (A. Ptarmica fl. pl., var. The Pearl). 2 ft. 
One of the best perennials grown, making a low bushy plant, bearing 
many loose heads of white flowers. It increases rapidly, and when out 
