Expert Gardener 2QT Yellow Snapdragon Live Annual Plant Sun is a cheerful flowering annual prized for its bright yellow blooms and tall, upright growth that adds sunny color to garden spaces. This snapdragon variety produces clustered flowers that bloom in spring and early summer, often returning in cooler fall conditions. It thrives in full sun to partial shade and grows best in well-drained, fertile soil. Typically reaching 12–24 inches tall and 8–12 inches wide, snapdragons provide vertical interest and texture. Grown as an annual in most regions, snapdragons perform best in USDA Hardiness Zones 7–10. Ideal for garden beds, borders, containers, and cutting gardens, this yellow snapdragon brings brightness and classic seasonal beauty.