The American florist : a weekly journal for the trade . make use of the nitrogen andreturn it to the soil when plowed it is only the clovers and othersof that family that add more nitrogenthan was originally in the soil. Clayshold the plant food more firmly thansandy soils, and the same is true ofmoisture. Humus also helps to holdthe moisture by absorbing it in thesame way a sponge does, while clayholds it by surrounding it as thoughit were in a cup. Oxygen or fresh air is very neces-sary to the soil to promote the growthof the innumerable bacteria that arealways present i
The American florist : a weekly journal for the trade . make use of the nitrogen andreturn it to the soil when plowed it is only the clovers and othersof that family that add more nitrogenthan was originally in the soil. Clayshold the plant food more firmly thansandy soils, and the same is true ofmoisture. Humus also helps to holdthe moisture by absorbing it in thesame way a sponge does, while clayholds it by surrounding it as thoughit were in a cup. Oxygen or fresh air is very neces-sary to the soil to promote the growthof the innumerable bacteria that arealways present in a fertile soil andto assist the chemical reactions thatare continuallj going on. Whenthe water in soil evaporates or is usedby the plant, air rushes in to take itsplace. When more wat^r is added, airand any injurious gases which mayhave, been formed are driven out, andwhen cnis water is gone more freshair is taken in. Also fresh air is takeninto the soil at night. When the even-ing comes on, the soil cools and shrinks igiz. The American Florist. 695. ST. VALENTINES TABLE DECORATION BY McINTYRE BROS., NASHVILLE, TENN and air is drawn in to fill the vacantspaces. The opposite occurs when thesoil grains expand with the heat inthe morning. So you might say thatthe soil takes a breath once everytwenty-four hours. Propasfatlng: Shrubs In Spring. Ed. American Florist:— Will jou kindly inform me if cuttingsof dormant or even started shrubssuch as Hydrangea paniculata grandi-flora, H. aborescens, Sambucus nigraaurea and also roses can now be cutand planted in rows, cultivated likeordinary fruit and vegetable plants andgive good rooted plants by June 15? New York. S. E. U. The hydrangeas cannot be propagatedfrom hardwood cuttings; they are usu-ally increased by cuttings made of thehalf-ripened growth in summer. Thesambucus also is not easy to rootfrom hard wood, It being so full ofpith, cuttings, may be made of half-ripened growth in summer, or root cut-tings may be made, taking piec
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