How to Grow Marigold
Annual
Marigolds are cheerful, easy-to-grow annuals prized for their warm gold, orange, yellow, and rust-red blooms that last from early summer until frost. US gardeners love them because they sprout quickly from seed, tolerate heat and poor soil, and reward beginners with months of dependable color. The two most common garden types are the compact French marigold (Tagetes patula) and the taller, large-flowered African or American marigold (Tagetes erecta).
Planting
Sow marigold seed directly in the garden after the last spring frost once the soil has warmed, or start seed indoors about 4 to 6 weeks earlier for a head start. Plant seeds about one-quarter inch deep in full sun, which means at least 6 hours of direct light per day, in average, well-drained soil. Space French and signet types about 8 to 10 inches apart and tall African types 12 to 18 inches apart to allow good airflow. Seedlings usually emerge within a week in warm soil, and nursery transplants can go in anytime from late spring through midsummer.
Care
Water at the base of the plant and keep the soil evenly moist while seedlings establish, then water deeply about once a week during dry spells, letting the top inch of soil dry between waterings. Marigolds thrive in lean soil and generally need little or no feeding; overly rich conditions produce lush leaves and fewer flowers. Pinch or snip off faded blooms regularly, a practice called deadheading, to keep new buds coming all season. Tall African varieties may flop in wind or rain, so stake them or plant them close together for mutual support, and pull the plants after the first hard fall frost blackens them.
Bloom time
Marigolds begin blooming in early to midsummer, roughly 6 to 8 weeks after sowing, and keep flowering nonstop until the first hard frost in fall.
Garden uses
They shine in borders, edging, and mixed beds, work well in containers and window boxes, and make long-lasting cut flowers. Their open, nectar-rich blooms also draw bees, butterflies, and other pollinators, making them a friendly companion throughout the vegetable garden.
Tips
Deadhead often and your plants will bloom more heavily and stay tidy; leaving spent flowers on the stem tells the plant to set seed and slow down. Hold back on rich soil and heavy feeding, since hungry marigolds actually flower best. In humid regions, give plants room to breathe and water in the morning so foliage dries quickly, which helps prevent gray mold and leaf spotting.
General guidance for US gardens. Timing and hardiness vary by region; check your local frost dates and hardiness zone. Page updated Aug 4, 2026.