Garden Glossary

Perennial-Annual-Biennial

Horticulture expert Dr. Lelia Kelly defines the gardening terms "Perennial," "Annual," "Biennial".  A perennial is a plant that comes back form the root or the base every year.  Like a tree it will live forever unless you kill it.  A biennial completes its life cycle in two years like parsley.  An annual is programmed to grow in one season, set seed and then die.