A string of red

A bunch of red Scientific name: Salviasplendens Alias: explosive red, western red, red under the wall, grass ivory red Genus: Lamiaceae Genus: Sage genus

Morphological characteristics of a bunch of red: A bunch of red is a perennial herb, often cultivated as an annual, with a plant height of 80~100 cm. The stem is erect, smooth, and has four edges. Leaves opposite, ovate. racemes terminal, covered with red pubescence. 2~6 small flowers, whorled, red, calyx bell-shaped, same color as petals, corolla lip-shaped. Flowering period May ~ September.

Ecological habits of a string of red: A string of red is light-lovingFlowersThe cultivation site must be sunny, which is very beneficial to the growth and development of a bunch of red. If the light is insufficient, the plant is easy to grow leggy, the stems and leaves are slender, and the leaves are pale green. For example, flowering plants are placed in poor light, and the flowers are often not bright and easy to fall off. It is sensitive to photoperiod response and has a short daylight habit.

A string of redGardenUses: A string of red is often used as the main material of flower beds and flower borders, and a string of red is often used as a potted plant in the northern region.

A string of red

A bunch of red Latin scientific name: SalviasplendensKer-Gawler Alias: a bunch of red, explosive red, firecracker red, larvia, ivory red, western red, ochre Two names: ScarletSage, TropicalSage Kingdom: Plant kingdom Phylum: Angiosperms Class: Dicotyledonous plants Subclass: Asteraceae Order: Lamiformae Family: Lamiaceae Genus: Sage Species: Bunch red Distribution area: Origin in Brazil, widely cultivated in gardens all over China.

A bunch of red, also known as explosive red and ivory red, is a plant of the genus Sage in the Lamiaceae family.

A bunch of red inflorescences is slender, bright red, long flowering, and highly adaptable, and is the most commonly cultivated herbaceous flower in Chinese cities and gardens.

A bunch of red is native to Brazil and South America. Likes warm and sunny environments. It is not cold-resistant, semi-shade-tolerant, avoids frost, snow and high temperature, and is afraid of waterlogging and alkaline soil. A bunch of red fruits is a small nut, oval in shape, containing black seeds, easy to fall off, and can be self-sown and propagated.

1. Morphological characteristics of a string of red

A bunch of red is a subshrub-like herb that can reach 90 cm in height. The stem is blunt and four-edged, with shallow grooves, glabrous. Leaves ovate or triangular-ovate, 2.5-7 cm long, 2-4.5 cm wide, apex acuminate, base truncated or rounded, sparsely blunt, edges serrated, green above, lighter below, glabrous on both sides, glandular dots below; stem petiole 3-4.5 cm long, glabrous.

A bunch of red cymes 2-6 flowers, forming terminal racemes, inflorescences up to 20 cm or more; bracts ovate, red, large, wrapped around buds before flowering, apex caudate acuminate; peduncle 4-7 mm long, densely covered with red glandular pubescence, inflorescence shaft slightly pubescent. Calyx bell-shaped, red, about 1.6 cm long at flowering, enlarged to 2 cm after flowering, outer with glandular pubescence dyed red along the veins, inner surface with slightly hard pubescent hairs in the upper half, bilabial, labial lobe up to 1/3 calyx length, upper lip triangular ovate, 5-6 mm long, 10 mm wide, apex with small pointed, lower lip slightly longer than upper lip, deep 2-lobed, lobes triangular, apex acuminate.

A bunch of red corolla red, 4-4.2 cm long, slightly pubescent on the outside, glabrous on the inside, crown tube-shaped, straight, slightly enlarged in the larynx, crown eaves two-lip, upper lip straight, slightly curved, oblong, 8-9 mm long, about 4 mm wide, apex slightly missing, lower lip shorter than upper lip, 3-lobed, middle lobes semicircular, lateral lobes long ovate, longer than middle lobes. Fertile stamens 2, nearly extended, filaments about 5 mm long, septum about 1.3 cm long, nearly straight, upper and lower arms nearly equal length, upper arm chamber developed, lower arm chamber infertile, lower arm thick, not conjunction. Degenerated stamens are short. The style is nearly equal to the corolla, the apex is not equal and the lobes are 2 lobed, and the anterior lobes are longer. The flower plate is the same size.

A bunch of small red nuts oval, about 3.5 mm long, dark brown, with irregular crepe protrusions at the tip, narrow wings at the edges or edges, smooth.

2. Species distribution of a string of red

A bunch of red is native to Brazil and is widely cultivated throughout our country.

3. A string of red living habits

A bunch of red loves the sun and is also tolerant of semi-shade, and a bunch of red requires loose, fertile and well-drained sandy loam. It is very sensitive to methyl bromide treatment soil and alkaline soil, and is suitable for growing in soil with pH 5.5-6.0. Poor cold tolerance, growth temperature 20-25 degrees Celsius. Stops growing below 15 degrees Celsius, and leaves wither and fall off below 10 degrees Celsius.

Fourth, the cultivation technology of a bunch of red

(1) Breeding methods

A bunch of red is propagated by sowing or cuttings to sow more. The sowing season in North China is not limited, and spring is suitable in the rest of the region. A bunch of safflower blooms late, spring sowers bloom in September ~ October, if you want to advance the flowering period or harvest seeds, the seeds should be sown in a greenhouse or hotbed in early March. A small amount of base fertilizer is applied to the sowing bed, the bed surface is leveled and watered thoroughly, the water seeps into the seepage, covered with a thin layer of soil, and the seeds germinate 8~10 days after sowing. It blooms in about 100 days and blooms for about two months. Cuttings are mostly used with young branches, which are more suitable in March ~ May or September ~ October, combined with the removal of apical buds.

(2) Field management

1. Fertilization: Base fertilizer is required for planting sites or potting soil.

2. Watering: In order to prevent legging, water less, loosen the soil frequently, and apply top dressing.

3. Temperature and light: The optimal growth temperature is 15~30 °C, below 12 °C growth is stagnant, the leaves turn yellow, fall off, and the flowers gradually fall off.

5. Prevention and control of a string of red diseases

If the greenhouse is planted with a bunch of red, such as indoor high temperature, high humidity or insufficient light, it is easy to cause rot, and attention must be paid to adjusting the temperature to make the air circulate. In addition, a string of red is prone to spider mites, aphids and other pests, which can be sprayed with 1500 times liquid solution of dilugo oxide emulsion.

6. The main value of a string of red

A bunch of red is often used as a safflower variety, and when the autumn is crisp, the flowers are dense and colorful. It is often used as the main material for flower beds. It can also be planted in ribbon flower beds or natural pure planting on the forest edge. It is often arranged with light yellow canna, dwarf marigolds, light blue or aqua pink water peonies, asters, dwarf thistles, etc. A bunch of red dwarf varieties is more suitable for flower beds, and white-flowered varieties have better ornamental effects in addition to coordinating with safflower varieties. Generally, the ornamental value of white-flowered and purple-flowered varieties is not as good as that of safflower varieties.

7. A string of red plant culture

A string of red flowers: a string of red represents the heart of love, a string of white represents energy, and a string of purple represents wisdom.

A string of red breeding methods

A bunch of red is native to Brazil and South America. Likes warm and sunny environments. It is not cold-resistant, semi-shade-tolerant, avoids frost, snow and high temperature, and is afraid of waterlogging and alkaline soil. Also known as explosive red, ivory red, and western red, a string of red inflorescences is slender, bright red, and has a long flowering period, so it is very popular among people. A string of red is a very have

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