Annual vs. Perennial Plants: Which Should You Grow?

Overview

Choosing between annuals, perennials, or a mix depends on your climate, garden style, and maintenance preferences. Each has distinct advantages.

Annuals

Complete life cycle in one year: germinate in spring, flower and set seed in summer/fall, die at frost. Some self-sow. Examples: marigolds, petunias, zinnias, tomatoes, beans, pumpkins, basil, dill.

Perennials

Live many years. Some foliage-only for first year(s), then flower annually. Others bloom first year. Examples: tulips, daylilies, peonies, trillium, cardinal flower, butterfly weed, asparagus, rhubarb, chives, mint.

Biennials

Two-year cycle: rosette of leaves first year, flowers and seeds second. Often self-sow. Examples: mullein, hollyhocks, foxglove, burdock, parsley.

Climate Considerations

Annuals grow in most climates; long-season crops (watermelons) may need indoor starts in cool regions. Perennials must survive winter—cold zones have fewer options. Some plants (geraniums) are perennial in warm areas, annual in cold. Tender perennials (calla lilies, gladiolus) may need lifting in fall in harsh climates.

Care and Design

Established perennials need little care beyond weeding and occasional division. Self-sowing annuals/biennials mimic perennials. Perennials suit permanent gardens and naturalizing. Annuals allow yearly redesign, color experiments, and easy replacement of failed plants.