Salvia splendens, also known as paozhanghong, is a common biennial herb.
The blooming period of a bunch of red flowers is very long, from July to October every year, the flowers keep blooming. It is the most common flower to decorate the national day, bright and uniform flowers, long tube shape, connected into a string, like a string of red firecrackers, set off a festive and peaceful atmosphere. In autumn, a bunch of red flowers stand among the green leaves, full of vitality, as if the heart is burning in love.
In addition to the bright red and gorgeous appearance, a string of red also has sweet nectar. There are probably not a few children who have tasted a bunch of red. I remember when I was a child, when a bunch of red flowers bloomed in school, children would flock to the flowers, pull off the top flowers and suck the sweet nectar from the roots. Of course, most of today's Scarlet are planted on the roadside. There are many dust and bacteria in the flowers. If eaten, it is easy to cause gastrointestinal diseases. Therefore, let a bunch of red sweet nectar stay in the memory of childhood.
Flower language: the heart of love
morphological character:
Plant type: up to 90cm. Stem obtuse tetragonal, shallowly grooved, glabrous
Leaves: ovate or triangular ovate, apex acuminate, margin serrate. Glabrous on both sides.
Flowers: a bunch of red flowers are divided into two parts, short bracts, and long real flowers inside. The bracts of a plant are abnormal leaves used to protect flowers. A bunch of red bracts are oval, red. The flowers are lip shaped, and the lower lip is slightly longer than the upper lip.
Seeds: nutlets, oval, containing black seeds, easy to fall off, self sowing reproduction
Growth habit:
A bunch of red like Yang, but also resistant to half Yin, requirements loose, fertile and good drainage sandy loam. The suitable temperature for growth is 20-25 ℃. Growth stopped below 15 ℃, and leaves withered and yellow below 10 ℃.
Cultivation management:
Fertilization: basal fertilizer should be applied to both planting land and potted soil.
Watering: in order to prevent overgrowth, we should water less, loosen the soil frequently, and apply topdressing.
Temperature: the optimum growth temperature is 15 ~ 30 ℃, below 12 ℃, the growth stops, the leaves turn yellow and fall off, and the flowers gradually fall off.
Main value:
It is often used as the main material of flower bed. It can also be planted in banded flower bed or natural style, and it can be planted in the edge of forest. In the north, it is often used as potted ornamental.
Reproduction mode:
It can also be used for cutting propagation.
1. The sowing time is from March to the first ten days of June in spring. After sowing, there is no need to cover soil, and the temperature is kept at about 20 ℃. It can germinate in about 12 days.
2. Cutting propagation can be carried out in summer and autumn, and may to August is better. The thick and full branches, 10 cm long, were inserted into the sterilized rotten leaf soil. After 10 days, the roots could be rooted and 20 days could be transplanted.
Salvia splendens is native to the mountainous areas of Brazil at an altitude of 2000-3000 meters, where it is warm, humid and well lit all year round, so the Salvia splendens used for cultivation are also used to that environment - although in fact they are very adaptable. A bunch of red primary species is very huge, which can grow to 1.3 meters high. What we can see everywhere and widely cultivated in the world is actually a dwarf variety that has been artificially selected.
A kind of