Flowers - H. Hortensias

H. Hortensia Japonica is the blue flowering variety; the color will
depend much, however, upon the soil. To make sure of the color, dissolve
one pound of alum in two quarts of ammonia, dilute with twenty gallons
water and use as a liquid fertilizer. Thomas Hogg is a beautiful pure
white, quite hardy. _H. h._ Otaksa, pink, is one of the most popular.