Wand Plant.—See "Galax."
Wasps.—To destroy Wasps rinse a large bottle with spirits of turpentine, and thrust the neck into the principal entrance to their nest, stopping up all the other holes to prevent their escape. In a few days the nest may be dug up. The fumes of the spirit first stupefies and eventually destroys the insects.
Water-cress.—Sow in prepared places, during spring, in sluggish brooks and moist situations; or it may be grown on a shady border if kept moist by frequent waterings. It may also be grown in a frame in September from cuttings placed 6 in. apart, sprinkling them daily, but keeping the frame closed for two or three weeks, then watering once a week. Give all the air possible in fine weather, but cover the frame with mats during frosts. It is best when grown quickly.
Watsonia.—Plant the bulbs during January in sandy loam with a little peat. They flower in April. Height, 1-1/2 ft.
Weeds in Paths.—These may be destroyed by strong brine, applied when hot. Or mix ½ lb. of oil of vitriol with 6 gallons of water, and apply, taking care not to get the vitriol on the hands or clothes.
Weigelia.—Free-flowering, hardy, deciduous shrubs, the flowers being produced in profusion along the shoots in April, and varying in colour from white to deep crimson. The plants will grow in any soil, and require no special culture. All the varieties force well, and may be increased by cuttings. Height, 6 ft.
White Scale.—See "Scale."
Whitlavia.—A hardy annual, needing no special treatment. It may be sown in autumn, and protected during winter in a frame, or it may be raised in spring in the open ground, where it will bloom in June. Height, 2 ft.
Whortleberry.—See "Vaccineum."
Wigandia Caraccasana.—A stove deciduous shrub which thrives best in a mixture of loam and peat. Cuttings in sand will strike if placed under glass and in heat. It flowers in April. Height, 10 ft.