Gladioluses, Tuberoses, Cannas, and Caladiums, come under this head, and are the best known of this class of bulbs. They are not hardy, and the slightest frost will injure them more or less. It is customary to allow tender bulbs of this kind to rest during the winter, the same as one would an onion. They can be safely kept through the winter under the staging of the green-house, in a dry, frost-proof cellar, where there is plenty of light, or in any other place where potatoes can be safely stored. Tropical bulbs of all kinds are much benefited by planting them in good, light, loamy soil, well enriched with well-rotted stable manure. They may be planted out in the open ground as soon as it can be worked in the spring, and all danger from heavy frosts is over. Any of the above named bulbs of ordinary size, should be planted at least from three to four inches deep, and from six to eight inches deep when the bulbs are of extra size. I am in favor of planting these bulbs in the open ground much earlier than most gardeners are in the habit of doing. Experience has shown me that the earlier in spring those summer bulbs are set out in the open ground, the better. Just as soon as the ground is in good condition to work, spade it up deeply, and plant the bulbs; the roots will soon begin to develop in the cool ground, before the tops start to grow, which is the true principle in growing all plants. They will thus receive a fine start before hot weather sets in. We have had Tuberoses and Gladioluses to bloom much earlier than usual, and much more continuously throughout the summer and fall, as the result of planting them as soon as the ground can be worked in the spring. If a continuation of bloom is desired, the bulbs should be planted at successive intervals of not less then three weeks; this will give a sucession of bloom throughout the entire season. In the fall remove the bulbs from the ground as soon as the tops have been touched by frost, cutting the stalk off to within a couple of inches of the base, and setting the bulbs away to rest for the winter.

TUBEROSES.

No collection of garden flowers is complete without the Tuberose. For the spotless purity of its flowers, and for incomparable fragrance, it has no superior. It is very easy to grow them successfully. Bulbs intended for fall blooming, should be planted in the open ground from the first to the middle of May; plant them about two inches deep. They will do well in any good, rich garden soil, if the soil is occasionally moved around them with the rake or hoe, after they are up and growing. Such treatment will cause the bulbs to grow rapidly, and the flower trusses, when they come into bloom, will consequently be much larger and finer. As the Tuberose is not hardy in our Northern climates, the bulbs should be dug up in the fall, the tops or stalks removed to within two or three inches of the bulbs, which should then be laid away in some dry, warm place, a dry and frost-proof cellar will do, or better yet, store them if possible, under the staging of a green-house. In the spring, before planting, remove all the young offsets from around the parent bulb; there are usually a number of young shoots clinging to it, and as the old bulb blooms but once, and only once, it is henceforth good for nothing, save for the production of more bulbs, if desired.

The young offshoots of the first season's growth will not become blooming bulbs until the third year, but if you have quite a number of young bulbs, say twenty-five or fifty, there will naturally be a number that will bloom in rotation, from year to year, and give some bloom each season. Some enterprising florists have Tuberoses nearly the whole year round. In order to do this, the bulbs must be "started" in pots; the bulbs are potted in the usual manner, so that the top, or crown of the bulb, when potted, will just show above the soil, and they should be kept rather dry until they show signs of growing, when they can be watered freely and set in a warm place. Of course bulbs intended for winter blooming must rest, or be kept from growing during the summer, and bulbs to be in bloom in April or May, must be started in January or February in pots. Tuberoses are rapidly productive; ten old bulbs having been known to produce one hundred young offshoots in one season. There are many "fine points" in growing Tuberoses, but the instruction here given will enable any one to grow them successfully.