Plants are generally classified into three different cycles -- annual, biennial and perennial. The life cycle for a plant starts with the seed (or other propagative structure), continues with ...

Learn about the three main weed classifications—annual, biennial, and perennial—and how they impact garden management.

It is safe to say that everybody likes snapdragons. Children appreciate your making puppets out of them. Pinch the funnel-shaped bottom of a snapdragon flower between thumb and forefinger, let go, ...

Examples of short-lived semelparous species include annual and biennial plants (including all grain crops, and many herbaceous vegetables), and certain invertebrate species, including many spiders ...