Do not cut the stalks away until you are ready to store the corms.
The tops of the corms or bulbs should be about three inches below the surface.
The corms should be planted in spring, and treated like Gladioli in pots.
Plant anemone and ranunculus roots and the corms of gladiolus.
This contractile power of roots has another office of great interest in connection with bulbs and corms.
Gladioli are increased by bulblets formed around the old bulbs (or corms), or they may be grown from seed.
Such growth may be seen if the corms are grown in a deep layer of sphagnum moss, or in a dark room.
All Crocuses may be easily increased by offsets, which may be detached when the corms are lifted.
Indeed, without their aid there would be neither bulbs nor corms to carry on the work of the plants from year to year.
In the following pages the average size of the bulbs or corms of different genera is given.