Tagetes is a genus of 56 species of annual and perennial mostly herbaceous plants in the sunflower family (Asteraceae or Compositae). The genus is native to North and South America, but some species have become naturalized around the world. One species, T. minuta, is considered
a noxious invasive plant in some areas.
Tagetes species vary in size from 0.01-2.2 m tall. They have pinnate green leaves. Blooms are naturally in golden, orange, yellow, and white colors, often with maroon highlights. Floral heads are typically (0.1-) to 4–6 cm diameter, generally with both ray florets and disc florets. Inhorticulture they tend to be planted as annuals, although the perennial species are gaining popularity.
Buy Tagetes - marigold seeds here
Grow Tagetes - Marigold from seeds
Depending on the species, Tagetes grow well in almost any sort of soil. Most horticultural selections grow best in soil with good drainage.
The seeds of Marigolds (Tagetes) should be sown outdoors a couple of weeks before the last frost of spring, marigold seeds should be lightly covered once sown. When planting Marigolds they should ideally be grown in a sunny area of the garden that receives shade in the afternoon. The soil that Marigolds grow in should be organically enhanced and of pH 6 to 7.
If starting off indoors, then sow the seeds of marigolds about 7 weeks before the last expected frost of spring; they should be transplanted outdoors following the last frost. Germination of marigold takes from three days to two weeks and should be done at about 20 to 24 degrees centigrade. It is important to water the young marigold seedlings from below. When putting out into the garden space small marigold varieties about 15cm apart; medium species 30cm apart and large marigolds from 45 to 60cm apart.
Caring for Marigolds
It is fairly easy to care for members of the Tagetes genus such as Marigolds. They are both hungry and thirsty plants so fertilize and water frequently. Pinch back tall marigold varieties when young to encourage bushiness and give them a support. Dead heading of marigold will prolong the blooming season. Marigolds are annuals so if you require more plants then they should be propagated form seed.