The listing, Marigold seeds has ended.
This is for 50 seeds
Plant type: Flower Marigolds
Sun exposure: Full Sun
Soil type: Sandy, Loamy, Clay
Flower color: Orange, Yellow
Bloom time: Spring, Summer, Fall
You can grow marigolds as perennials in U.S. Department of Agriculture hardiness zones 9 through 11. & I live in zone 5 they grow just fine for me
No annual is more cheerful or easier to grow than marigolds. These flowers are the spendthrifts among annuals, showing a wealth of gold, copper, and brass into our summer and autumn gardens. The flower’s popularity probably derives in part from its ability to bloom brightly all summer long.
Plant after chance of frost,
Planting
Marigolds need lots of sunshine.
Though they grow in almost any soil, marigolds thrive in moderately fertile, well-drained soil.
Sow them directly into the garden once the soil is warm, or start seeds indoors about a month to 6 weeks before the last spring-frost date.
The seeds germinate easily, but watch out for damping off if you start them inside.
Separate seedlings when they are about 2 inches tall. Plant them in flats of loose soil, or transplant them into the garden.
Space tall marigolds 2 to 3 feet apart; lower-growing ones about a foot apart.
If planting in containers, use a soil-based potting mix; during growing season, water freely and apply a balanced liquid fertilizer weekly.
Care
Germination from large, easily handled seeds is rapid, and blooms should appear within a few weeks of sowing.
If the spent blossoms are deadheaded, the plants will continue to bloom profusely.
Do not fertilize marigolds. Too rich a diet stimulates lush foliage at the expense of flowers. Marigolds bloom better and more profusely in poor soil.
The densely double flowerheads of the African marigolds tend to rot in wet weather.