What are the common propagation methods for annual flowers?

Because annual flowers have a relatively short lifespan, you need to take good care of them while growing them if you want them to bloom beautifully. In fact, when it comes to propagating annual flowers, there are quite a few methods for cold protection during propagation, and the two we use most commonly are sowing and cuttings.

Annual flowers

I. Sowing method

1. Substrate for sowing and raising seedlings

The substrate used for sowing and raising seedlings must be lightweight, loose, water-retentive, fertile and hygienic. A mix of sandy soil, leaf mold and manure soil can be used, with a soil-to-fertilizer ratio of 7:3 being suitable. Use horse hoof and Bauhinia as base fertilizer. You can also use perlite:peat:plant ash:vermiculite at 1:2:1:1.

2. Sowing and management after sowing

Before sowing, carefully prepare the seedling bed, level it, and water it thoroughly; generally no fertilizer is applied in the bed. Annual flowers usually do not need seed treatment when sown. The common sowing method is broadcasting; the covering depth of soil should just be enough to hide the seeds, and for open-field sowing the covering can be slightly thicker. Sowing must be even and the sowing density appropriate. Very small seeds generally should not be covered with soil. After sowing and covering with soil, you can use a pressure spray bottle to spray the substrate thoroughly or use the bottom-watering method with the pot, so that the seeds and the sowing substrate are fully brought into close contact. If the soil has not been disinfected, an appropriate amount of fungicide can be added to the water at this time. After the operation is complete, cover with a glass sheet or plastic film; generally no more watering is done after sowing. After the seedlings emerge, gradually remove the cover; when the seedlings are crowded, thin them out in time so that the air circulates and sunlight is sufficient, and then they will grow robustly. When the seedlings grow to 3-4 true leaves, they can be transplanted into 8cm x 8cm nutrient pots. Since the first transplanting is bare-root transplanting, you must dig up the seedlings, transplant them and water them at the same time to avoid wilting. When the plants cover the nutrient pots, they can be planted out into 15 x 13 nutrient pots or 140-160cm plastic pots.

II. Cutting method

1. Selection of cuttings

Select disease-free, robust new shoots, cut 3-8cm, keep 2-4 buds, and cut off 1/3 of the large leaves to reduce water evaporation.

2. Cutting substrate

The cutting substrate generally uses a substrate with good heat preservation, good water retention and strong stability, such as river sand, vermiculite or a 1:1 mix of river sand and vermiculite

3. Cutting method

In a hotbed above 15°C, cuttings can be taken at any time. The cuttings can be soaked in a rooting powder solution and then inserted into a pre-watered substrate at 3-5cm spacing. After cutting, a small arched shed can be set up with appropriate shading. The cuttings usually root in about 10-20 days, and can be divided and transplanted in 30 days. Cutting-propagated seedlings reach the flowering stage faster than seedlings grown from seed, and plant height is also easier to control. Propagation methods for annual flowers.

Propagation methods for annual flowers

What annual flowers are there

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      We all know that most flowers can bloom for several years, such as peonies and roses, but some flowers bloom for only one year, generally sown in spring, growing in summer and autumn, flowering and setting seed, and then dying. Do you know which flowers have such a short life? Today the editor will introduce to you what annual flowers there are.


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      Zinnia is an annual flower, with side branches forming forked branching, blooming in summer and autumn, with a head inflorescence borne singly at the top of the branch, flower diameter about 10 cm, and petals in various colors. Zinnia has large flowers and bright colors, blooms early, has a long flowering period, and a beautiful plant form; it can be used in flower beds, flower borders and flower strips according to height. It is also often used as a potted plant, and is the national flower of the United Arab Emirates.
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      Marigold belongs to the genus Tagetes in the Asteraceae family, is an annual flower, native to Mexico, and is cultivated for ornamental purposes in various places in China. It can grow in areas from 1,150 meters to 1,480 meters above sea level, mostly on roadsides and meadows. Marigold is often sown in spring, and because its flowers are large and its flowering period is long, it is often used for flower bed displays. The flowers also have the effects of clearing heat and detoxifying, and resolving phlegm and relieving cough.
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      Sunflower belongs to the Heliantheae tribe and is an annual flower, native to South America. The domesticated species was brought from North America to Europe by the Spanish in 1510, initially for ornamental use, and at the end of the 19th century it was introduced back to North America from Russia. It is cultivated throughout China. Sunflower seeds are called sunflower seeds, often eaten as a snack after being roasted, and they taste delicious; they can also be pressed for sunflower seed oil for consumption, and the oil residue can be used as feed.
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      Schizanthus is an annual flower or perennial herbaceous plant native to Chile with eight varieties. This plant can grow to 3 feet tall. Their leaves are dark green, covered with short, sticky hairs. The large funnel-shaped flowers are purple, blue, red, yellow or white, with golden yellow veins.
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      China aster is a plant in the Asteraceae family, also called an annual flower, an Asteraceae herbaceous plant. Many cultivated varieties have long been garden ornamental flowers. China aster has bright flower colors, diverse flower forms, abundant blooming and a rather long flowering period, and is an ornamental plant highly valued by horticultural circles at home and abroad. Internationally, dwarf varieties are used for potted plants and flower bed viewing, while tall varieties are used as cut flowers. In China, China aster is mainly used for potted plants and garden viewing, and has become one of the important potted flowers.
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      Morning glory is an annual twining herbaceous flower of the genus Ipomoea, with slender trailing stems, about 3-4 meters, and the whole plant densely covered with short bristles. Leaves are alternate, entire or with leaf lobes. It is a common trailing herbaceous flower in summer and autumn, and can be used for shade in small courtyards and in front of room windows, for small trellises and hedges, and can also be planted as ground cover.
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      Impatiens is an annual flower of the genus Impatiens. Impatiens is like a crane's crest and resembles a colorful phoenix, with a graceful posture and charming beauty. The fragrant and colorful red impatiens and the delicate jade-colored impatiens both open in the morning, which is the best time to appreciate impatiens. Because its flower colors and varieties are extremely rich, impatiens is a commonly used material for beautifying flower beds and flower borders. It can be planted in clumps, in groups and in pots, and can also be used as a cut flower for water culture.
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      Flowers can be seen everywhere in our lives, whether for arranging flower beds or as potted flowers in pots to decorate interiors and gardens, and annual flowers are used more in flower bed arrangements. Today the editor's introduction to what annual flowers there are ends here. Thank you all for reading.