Seeds should be planted very shallow. Marigolds will self seed. I lay seeds on top of the soil and sprinkle a bit of soil on top of seed. Soil should be kept moist.
Sow 0.25 inches (0.64 cm) deep with a guideline distance of 1.17 inches (3.0 cm).By our calculations, you should look at sowing Bonanza yellow about 35 days before your last frost date.
When transplanting in the garden it is best to water the soil before planting (if needed). I transplant most plants at the end of the day when it is cool. Water again after planting.
As Bonanza yellow is hardy, ensure temperatures are mild enough to plant out - wait until after your last frost date to be on the safe side.Yellow marigold