Marigold Spacing
Broadcast seed into cultivated soil so that the seeds are about 2 inches 5 cm apart and one half inch 1 cm deep.
Marigold spacing. 16 18 41 46cm width. Giant 1 y 2 to 3 feet a b p hardiness half hardy annual spacing dwarf 4 per square giant 1 per square growing season spring no summer yes fall yes winter no florence grovida gardening marigold. Thin to 8 inches 20 cm apart in all directions for dwarf varieties.
Larger american varieties should be at least 10 to 12 inches apart. 8 10 20 25cm height. Allow 12 inches 30 cm between very tall varieties.
For best results thin or transplant young marigolds while they are still small spacing french and signet types 8 to 10 inches apart. In climates with long hot summers make a second planting in summer for great autumn color. Marigolds grown in containers can become a bit crowded.
Thin marigold seedlings planted outside to a spacing of one plant every 12 to 18 inches or at a spacing equal to about half of the plants expected width. This new intermediate type african marigold offers improved branching earliness flower size and a brighter flower colour. 6 to 7 weeks.