Mari Gold Flower
The two most popular types of marigolds are African (Tagetes erecta) and French (Tagetes patula) marigolds. These annual, native-Mexican herbs bloom from early summer until the first hard frost, so the bright colors last the entire growing season. In mild climates where night temperatures do not fall below freezing for extended periods of time, marigolds bloom year-round. Bacterial wilt is one of the few problems that affects marigolds in the garden.
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It flowers from July to September. The scented flowers are hermaphrodite (have both male and female organs). It is hardyto zone 6 and is frost tender. The lower leaves are broad and spatula shaped. Upper leaves may be oblong, are smooth at the edges, and are arranged alternately along the stem. Seeds are crescent to horseshoe shaped with the rough exterior. Its branching stem grows to the height of 30- 60 cm.
come in different colors, yellow and orange being the most common. Most of the marigolds have strong, pungent odor and have great value in cosmetic treatment. There are many varieties of Marigolds available today. Some of the major Marigold varieties are listed below:
African or American Marigolds (Tagetes erecta): These marigolds are tall erect-growing plants up to three feet in height. The flowers are globe-shaped and large. Flowers may measure up to 5 inches across. African Marigolds are very good bedding plants. These flowers are yellow to orange and do not include red colored Marigolds. The Africans take longer to reach flowering stage than the French type.
French Marigolds (Tagetes patula) Marigold cultivars in this group grow 5 inches to 18 inches high. Flower colors are red, orange and yellow. Red and orange bicolor patterns are also found. Flowers are smaller (2 inches across). French Marigolds are ideal for edging flowerbeds and in mass plantings. They also do well in containers and window boxes.
Signet Marigolds (T. signata ‘pumila’): The signet Marigolds produce compact plants with finely divided, lacy foliage and clusters of small, single flowers. They have yellow to orange colored, edible flowers. The flowers of signet marigolds have a spicy tarragon flavor. The foliage has a pleasant lemon fragrance. Signet Marigolds are excellent plants for edging beds and in window boxes.
These marigolds are the sterile hybrids of tall African and dwarf French marigolds, hence known as mule Marigolds. Most triploid cultivars grow from 12 to 18 inches high. Though they have the combined qualities of their parents, their rate of germination is low