A snake doctor is not always a person who goes around curing sick snakes. Snake doctor is a local name for an insect. Some people also call this fellow a snake dragon. Others may call any kind of dragonfly a snake doctor. This is very confusing.
1 Though they grow in almost any soil, marigolds thrive in moderately fertile, well-drained soil. 2  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.3  The seeds germinate easily, but watch out for damping off if you start them inside.hen fertilize lightly with a balanced plant food. It may take a week or two for the marigolds to recover but they should be fine. Next year, if you grow marigolds, you really want to pinch or cut back the new buds and foliage tips when they are 6 to 78 inches tall.
This will improve soil drainage and fertility. Plant marigold seeds in the soil 1/4 inch deep and water the area deeply. The appropriate spacing for marigolds depends on the mature size of the plant. French marigolds (Tagetes patula) are smaller plants and can be spaced 6 to 9 inches apart.The larger African marigolds (Tagetes erecta) need around 18 inches of space between plants.n temperate coastal climates, where soil temperatures warm quickly in the spring and where spring temperatures are mild, marigolds can easily be direct seeded into the ground at nearly any point in the early to mid spring. The best month to sow marigold seeds is in early April.