American/African Marigolds (T. erecta) ‘Jubilee’ Series: 2’ tall plants with dense, double flowers in shades of yellow and orange. ‘Gold Coin’ Series: 1½ to 2’ tall plants with large (5” wide) double blooms in gold, yellow, and orange.
Larger American varieties should be at least 10 to 12 inches apart. Marigolds grown in containers can become a bit crowded. Burpee offers a nice collection of their marigolds as Sure Start Plants. Garden centers also offer young marigold plants in celled packs of 6 or 8 plants for spring planting.
Marigolds perform best in full sun, which will help the plant grow tall and sturdy and form large, dense blooms and foliage. When planted in part shade the marigold is …
Tagetes erecta (African or American marigold): These are the tallest variety of marigolds and range in height from 1 to 4 feet, and have a 1 to 2 foot spread. Their large flowerheads can reach up to 5 inches across, are densely double and pompon-like.
Grow perfect marigolds in any home garden with high yield marigold seeds and plants from Burpee seeds. Shop for American and French and specialty flower seeds at Burpee today. Height 0-12 inches (11) 13-24 inches (7) 25-36 inches (6) 37+ inches (2) Exclusive Yes (18) Form Plant (3) Seed (24) Marigold Seeds.
Tagetes lemmonii (Mexican Marigold) Grows up to 4-6 ft. tall (120-180 cm) and 6-10 ft. wide (180-300 cm). Easily grown in well-drained soils in full sun. Tolerates part shade, but may get leggy in too much shade and bloom less. Drought tolerant, but performs best with regular irrigation.
Species & Cultivars. French Marigolds ( Tagetes patula ): French marigolds are small, bushy plants with flowers up to 2 inches across. Flowers may be single or double, yellow, orange, mahogany-red or bicolored. Plant height ranges from 6 to 18 inches. French marigolds bloom from spring until frost.