Origin and habits: There are more than 30 species of Chrysanthemum, 17 species are native to China, mainly including: wild chrysanthemum, chrysanthemum, chamomile, red chrysanthemum, purple chrysanthemum, chrysanthemum, etc. It is a perennial herbaceous plant. It likes coolness and is relatively cold-tolerant. The suitable growth temperature is 18-21°C. The underground rhizomes are drought-resistant and most avoid waterlogging. It likes high terrain, deep soil, rich in humus, loose and fertile loam with good drainage. It can grow in slightly acidic to slightly alkaline soil. And Ph6.2-6.7 is the best. It is a short-day plant that grows vegetatively under 14.5 hours of long daylight per day. More than 12 hours of darkness per day and a night temperature of 10°C are suitable for flower bud development.

Morphological characteristics: Plant height 20-200cm, stem color light green or brown, base semi-lignified. Single leaves are alternate, oval to oblong. The edges are notched and serrated, the flower heads are terminal, and the tongue-shaped flowers are female flowers. The tubular flowers are bisexual. Ligulose flowers are divided into four categories: inferior, sphenoidal, and malformed. The tubular flowers develop into "Guigui petals" with various colors, including red, yellow, white, purple, green, pink, complex colors, intermediate colors and other colors.

Propagation and cultivation: It can be propagated by sowing. The suitable temperature for germination is 25℃. Sow it from February to April and it can bloom that year. In production, propagation by cuttings is the main method, which can be divided into root tiller cuttings, twig cuttings, single bud cuttings and bud cuttings. Division and tissue culture methods can also be used for propagation.

Chrysanthemums occupy an important position in the world's cut flower production. Cut flowers require neat flower shapes, flower diameters of 7-12cm, bright colors, no damage from diseases and insect pests, dark green leaves, straight stems, more than 80cm high, and water. Long maintenance period. Cut chrysanthemums can be planted on the ground with a spacing of 12-13cm between plants and about 15cm between rows. Up to 50 plants per square meter need to be supported by netting to keep the plants upright.

Chrysanthemums can promote and inhibit cultivation. In the long daylight season, shade from 17:00 to 9:00 every day, with 10 hours of sunshine every day, and stop shading when the flower buds show color, so that they can bloom in advance. In the short-day season, adding less than 14 hours a day can control the differentiation of flower buds and delay the flowering time. Common diseases include brown spot, black spot, powdery mildew, brown rust, black rust, root rot, etc. The main pests include aphids, red spider mites, inchworms, chrysanthemum tigers, grubs, leaf miner larvae, grasshoppers and snails, cutworms, chrysanthemum borers, green blind stink bugs, etc.

Application: Chrysanthemum is one of the important flowers in garden applications and is widely used in flower beds, ground covers, potted flowers and cut flowers.

Medicinal uses: Some are used for medicinal purposes or as refreshing drinks to relieve summer heat, such as chrysanthemum chrysanthemum, chrysanthemum chrysanthemum, etc., which have a cooling and sedative effect and can treat headaches, dizziness, hypertension, nervous headaches, and conjunctivitis. disease.

Answer: 6109xuyibing - Magic Apprentice Level 1 1-1 13:17

Chrysanthemum is a traditional Chinese flower. It is beautiful and colorful, but it does not win with its delicate appearance, but wins with its simplicity and elegance, and it blooms after the flowers have withered. People love its elegance

and its charm, and even more love it for its pride in blooming despite the frost and the westerly wind. China has given it

noble and strong sentiments, and it is regarded as a symbol of the national spirit and is loved by people. Chrysanthemum

As a proud flower, it has always been favored by poets. The ancients I especially like to use chrysanthemum as my name, and use it to compare my noble sentiments, steadfastness and unyielding.

Chinese people love chrysanthemums very much. Since the Song Dynasty, there has been an annual chrysanthemum event among the people.

In ancient myths and legends, chrysanthemums have been given the meaning of auspiciousness and longevity. For example, the combination of chrysanthemums and

magpies means "family happiness"; the combination of chrysanthemums and pine trees means "longevity and longevity", etc., which are widely used among the people.

Answer: One Leaf Knows Autumn 632 - Apprentice Magician Level 2 1-1 15:43

1035 Gerbera flower, the whole plant of Erigeron Asteraceae native to southern Africa Hairy, basal leaves, clustered, leaves... Mainly cultivated as cut flowers, for flower arrangements and making...

1020 Willow-leaf, white-leaf, yellow-leaf, yellow-leaf, yellow peacock, Asteraceae, native to North America. The adult plants are clustered, with upright stems and fine hairs... Propagated by cuttings or divisions.

1017 Silver leaf chrysanthemum Snow leaf chrysanthemum, Asteraceae family Asteraceae, is native to southern Europe. It is relatively cold-tolerant. In the Yangtze River... the plant is multi-branched and has one or two pinnate leaves... Its silver-white leaves look like a single leaf from a distance. Baiyun,...

1005 Rudbeckia is unknown. It is an annual or perennial herb in most parts of the country in the Asteraceae family, with single or compound leaves... Flower mirror

973 Wheat straw chrysanthemum, helichrysum, Asteraceae is native to Australia, and is an annual herbaceous plant in Southeast Asia, Europe and America. The stems are upright,... Wheat straw chrysanthemum can be placed in flower beds, or naturally placed on the edge of the forest...

966 Medal chrysanthemum Medal flower, African sun flower... Asteraceae (originating from South Africa) perennial throughout the country Herbs. The flower diameter is 6-10 cm... Suitable for potted plants or flower beds for festivals

961 Ruyi with flowers and leaves Wu Fengcao with flowers and leaves Asteraceae Produced in Northeast China; also distributed in Japan. ...with massive rhizomes, basal leaves, and long stalks... Suitable for gardens, flower beds, rock gardens and potted plants...

929 Orchid chrysanthemum - Scrophulariaceae native to the Pacific coast of North America It is inverted shape, semi-succulent, with three branches... It can be planted in clusters in flower borders or as potted plants...

914 Yarrow, a branch of Artemisia, centipede grass, centipede. .. The leaves of Asteraceae in South China are yellow-green, and the upper part of the leaves turn before dormancy... Flower beds, flower mirrors, fresh cut flowers

912 Snake whip chrysanthemum, unicorn chrysanthemum, Cattail flower, Asteraceae, native to the eastern United States, the base of the stem is enlarged and appears Flat spherical shape, above-ground stems... Suitable for arrangement with flowers of other colors, as...

909 Echinacea Echinacea Purple coneflower Asteraceae is distributed in North America, and is cultivated in many parts of the world. The whole plant has Coarse hairs, upright stems; basal leaves... Can be used as background planting or as flower border and slope material...

908 Rudbeckia Roman chamomile, Asteraceae, is an annual or perennial herbaceous plant throughout the country, feather. .. Ground cover plants, woods and grasslands

907 Aster mountain cabbage Asteraceae Aster in Northeast China, North China, Gansu, Anhui and other places has short rhizomes with many fine roots... Aster is an ornamental flower in autumn. Mostly used for decoration...

827 Cineraria Centifolia, Centrophylla Asteraceae, perennial herb from all over the country. Often used as an annual greenhouse... Unknown

825 South American weedy chrysanthemum, Groundweed, Asteraceae, Tropical stems lying on the ground, with short hairs.

The leaves are opposite... Used as potted plants, hanging pots, flower beds, ground covers or embankments...

816 Heliophylla, Golden Pheasant, Asteraceae, native to North America, with broad lanceolate leaves and flower heads. Born on the stem... It is often used as a flower bed border or flower arrangement in the garden...

766 Dahlia - Asteraceae, with rich flower types and colors all over the country, blooming in summer and autumn as potted plants, flower beds, flower borders, and cut flowers

754 Black-eye Chrysanthemum - Asteraceae Northeast, North and East China. Flower center is raised, purple-brown, with petals around... Flower border, natural cluster planting

753 Ox-eye Chrysanthemum - Asteraceae The flowers in North China, Northwest China and Northeast China are white, and they are planted in flower beds, flower borders and clusters from May to September

752 Daphne chrysanthemum, Lychee chrysanthemum, perennial Chrysanthemum... The flowers of Asteraceae in Northeast, North China and East China are yellow. Or the base of the petals is brown, in flower beds and flower borders from June to October

751 Chrysanthemum is unknown. Compositae has many colors all over the country, in flower beds, flower borders and potted plants from October to November

750 Golden Rooster Chrysanthemum - yellow flowers in North and East China of the Asteraceae family, flower beds, flower borders, and cut flowers from June to August

749 Dutch chrysanthemum - purple and white flowers from all over the country in the Asteraceae family, flowering period in flower beds, flower borders, and flowers from August to September Potted plant

748 Trichosanthes chrysanthemum - an evergreen subshrub in the Asteraceae family all over the country, with tongue-shaped flowers that are white or light... Can be used in flower beds, flower hedges, cut flowers, potted plants, and warm areas...

747 Zinnia millifolia - Asteraceae, tongue-shaped flowers in the northeast, northwest and north China are white, tubular flowers are yellow and pink...Flower borders, group plants, cut flowers, ground cover

731 Zinnia backgammon, Growing taller and opposite... The flowers of Asteraceae are large and colorful all over the country, and the flowering period is from June to October in flower beds, cluster planting, cut flowers, and cluster planting

730 Peacock grass red and yellow grass Asteraceae has yellow and brown flowers all over the country Spots, flower beds, borders, ground covers, flower mirrors from June to October

729 Marigold, hibiscus, and Asteraceae have yellow and orange flowers all over the country. Flower beds, fences, flower bushes, Flower Mirror

728 Cosmos Autumn Sakura, Autumn Cosmos... Asteraceae flowers all over the country have white, pink, red, purple and other colors, flowers... Flower bushes, flower hedges, ground covers, flower beds , flower mirror

727 Snake-eye daisy, cosmos, money chrysanthemum,... Compositae all over the country have a smooth base, many branches in the upper part, and a plant height of 6... Flower beds, flower borders, ground covers