Petunia Flowering Season May 2026

If you are looking for a plant that asks for very little but gives back endlessly, look no further than the petunia. After growing several varieties (Grandiflora, Multiflora, and Wave) over the past three seasons, I am thoroughly impressed by the sheer length and reliability of their flowering period.

Rating: 5/5 Stars

Beginner gardeners, high-heat areas, and anyone who hates replanting beds every few months. Not for: Deep shade gardeners or those who hate sticky fingers. petunia flowering season

In USDA Zone 6b, my petunias start their show in mid-April (if started indoors or bought as mature starts) and do not quit until the first hard frost in late October or early November . That is nearly seven months of continuous blooms. Unlike many annuals that take a "rest" in summer heat, petunias seem to hit their stride in July. If you are looking for a plant that