Some plants race through life in a single season. An annual plant germinates from seed, grows foliage, flowers, sets seed, and dies before winter arrives. Gardeners rely on them for quick color and reliable harvests because the entire cycle fits into one growing year.

Petunias, zinnias, and most vegetable crops like beans or tomatoes follow this pattern. In mild climates a few may linger, yet frost or exhaustion usually ends them. Seed companies breed annuals for continuous bloom, which means regular deadheading keeps the display going until the first hard freeze.

Because they finish so fast, annuals demand steady moisture and nutrients. Plant them after the last frost date and they repay the effort with months of flowers or food. Many self-sow if conditions suit them, creating volunteer seedlings the next spring.

• Completes life cycle in one season
• Common examples include marigold, basil, and corn
• Ideal for filling gaps and seasonal displays
• Often grown from seed each year