Written by Maggie
Nov 25 2020
Tagetes Patula L was originally from Mexico. It is distributed in Sichuan, Guizhou, Yunnan and other places, born in 750-1600m above sea level hillside grassland, forest, or garden cultivation.
Tagetes Patula L is an annual herb, 30-100 cm tall, with an upright stem, usually branched near the base, and branched obliquely. Leaves are pinnately divided, 2-9 cm long and 1.5-3 cm wide, lobes linear-lanceolate, margin serrate, teeth often long awns, teeth usually with 1 gland at base.Inflorescences solitary, 3.5 -- 4 cm long, peduncle 5 -- 6.5 cm long, apex slightly thickened;Involucral bracts 1.5 cm long, 0.7 cm wide, elliptic, apex acute, glandular. Lingual flowers are golden yellow or orange, with red spots. Tongue subequal is 8-10 mm long, 6-7 mm wide, apex slightly concave. Corolla is yellow, 10-14 mm long, as long as crown hair, with 5 teeth cleft. Achene is linear, basally reduced, 8-12 mm long, black, pubescent, crested with scaly hairs, 1-2 long awned, 2-3 short and obtuse. Flowering period is from July to September.
Tagetes Patula L is an annual herb in the compositae family, native to Mexico. It prefers a warm, sunny environment. The growth temperature was 10℃ ~ 38℃, and the optimum temperature was 15℃ ~ 30℃.The soil requirements are not strict, but avoid the pH value of less than 6 acid soil. As Tagetes Patula L is sensitive to temperature and sunshine length, it is cultivated differently in different regions.
Tagetes Patula L likes the sun, but it can flower as well in a semi - shaded place. It doesn't take care of the soil. It is transplantable, fast growing and easy to manage. The seeds scattered on the ground can grow by themselves in the right temperature and humidity conditions, and are very adaptable flowers.
Originally from Mexico, Tagetes Patula L is often cultivated in gardens throughout China. It has been naturalized in central and northwest Yunnan, central and southwest Sichuan and western Guizhou.
Tagetes Patula L has medicinal value. Tagetes Patula L 's whole grass is a medicinal herb, harvested in summer or fall, fresh for use or dried in the sun. It tastes bitter and flat. It has the effect of clearing heat and removing dampness and relieving cough, dysentery, cough, toothache, wind and fire eye pain.
As a string of red can not withstand the May low temperature, and can not withstand the November early frost, the summer heat can make most of the plants half dead. As a result, Tagetes Patula L gradually became the main flower in the flower bed and courtyard. Its orange and yellow flowers stand out.