198 THE GARDEN UNDER GLASS
or lettuces may be put between the rows, also radishes. If grown in pots, one or two sets may be put in each 9-inch pot and the tuber should be just covered, allowing room for future top-dressing. If the growths are kept upright by stakes, and the so il never allowed to become quite
Diagram 40.—Forcing Rhubarb, Asparagus and Seakale:
1. Rhubarb in box beneath staging. 2. Rhubarb set on floor and covered with leaves with mat put up («). 3. Asparagus in frame. 4. Seakale in pots. 5. Root-cutting of seakale.
dry, some useful tubers may be produced. The pots used for Chrysanthemums will do well for these. Sharp’s Victor, Sharp’s Express and May Queen are good varieties for forcing.