HORTICULTURE

Detailed explanation-1: -A perennial plant is a plant that lives for more than two years. Many perennials grow and bloom over spring and summer, die back during fall and winter, and grow again the following year from their roots.

Detailed explanation-2: -Perennial plants live more than two years and are grouped into two categories: herbaceous perennials and woody perennials. Herbaceous perennials have soft, nonwoody stems that generally die back to the ground each winter.

Detailed explanation-3: -Examples of biennial plants are members of the onion family including leek, some members of the cabbage family, common mullein, parsley, fennel, Lunaria, silverbeet, black-eyed Susan, sweet William, colic weed, carrot, and some hollyhocks.

Detailed explanation-4: -1.) ‘Moonbeam’ Tickseed. (Coreopsis verticillata) 3.) Russian Sage. (Perovskia atriplicifolia) 5.) Coneflowers. (Echinacea) 9.) ‘May Night’ Salvia. (Salvia x sylvestris)