b. Biennials, however, continue for two years before they perish, making roots and leaves the first year and usually flowering the second.
c. Perennials are the kind that continue for more than two years.
d. Deciduous refers to the shrubs and trees that lose their leaves in the fall.
e. Evergreens are those that keep their verdure the whole year round.
f. Herbaceous plants may be annual, biennial or perennial, but they have a stem that does not become woody, and that dies down after flowering.
g. Hybrids are plants produced by "crossing," or mixing two distinct varieties.
PLANT NEEDS
All plant life, you must understand, requires five things,—WARMTH, LIGHT, AIR, WATER and FOOD. But plants differ as much as people, and some need more of one thing than they do of another. Some grow best in sunlight, others in the shade; some in sand, others in rich soil. You will have to find out what each kind requires. The food properties needed in the soil have some big names, too,—nitrogen, potash, and phosphoric acid, all of which are found in farm manures. If you can not conveniently get these, however, florists and seed-men can supply you with other fertilizers more easily handled.