How to Grow the Flame Tree (Delonix regia)? A Detailed Guide to Its Cultivation Methods
The flame tree (Delonix regia) is native to the tropics and naturally loves hot, humid environments. The temperature range best suited to its growth is 20-30°C, which is why late spring to early summer and autumn are its most vigorous growing seasons in China. The flame tree is not cold-tolerant, so plants grown in the open need to be protected from the cold in winter, keeping the temperature no lower than 10°C, otherwise there is a risk of freezing to death.
Soil: The flame tree can tolerate fairly poor soil, but it most prefers fertile, organic-rich, loose soil. Grown in the most suitable soil environment, the flame flowers it produces are even more brilliantly beautiful. The flame tree has a shallow root system, but its roots are very well developed and anchor firmly, giving it strong wind resistance.
Transplanting and planting out: Transplanting of the flame tree is aimed at seedling growth; seedlings of about 1-2 years old should be transplanted into a fertile, loose, sunny environment. Transplanting is usually carried out in early spring, and after transplanting the row spacing of the plants should preferably be kept at about 60 cm. After 1-2 years of transplanting, once the seedlings have grown, they can be planted out. Planting out has low soil requirements and poor soil is acceptable, but the site chosen should also be open and sunny.
Watering: The flame tree is drought-tolerant, but the amount of water given must be controlled. Because its roots have rhizobia, in poor soil it can fix nitrogen to increase soil fertility, but waterlogging will cause the rhizobia to die, thereby affecting the normal growth of the whole plant.
Propagation Methods of the Flame Tree
The common propagation method for the flame tree is propagation by seed. Seeds are generally sown in spring and can mature in 12 months. Before sowing, the seeds need to be soaked: first soak the seeds in boiling water, then, after the water has cooled, soak them for about 2 days, changing the water once in between. Only after this treatment can the seeds be sown; they generally begin to germinate in about a week and begin to sprout in 3 weeks.
What Is the Flower Language of the Flame Flower and How to Grow It
What is the flower language of the flame flower? The flame tree takes its name from the saying "leaves like the feathers of a flying phoenix, flowers like the crest of a red phoenix." With its bright red or orange flowers combined with bright green pinnate compound leaves, the flame tree is hailed as one of the most brilliantly coloured trees in the world. So what is the flower language of the flame flower? And what growing methods does it require? Let's take a look below.
1. What Is the Flame Flower
Taken literally, the flame flower is the flower of the flame tree. The flame tree has a tall crown and luxuriant branches and leaves, flowering from May to the end of summer. The flower has five petals, is large and fire-like, with red flowers and green leaves, magnificent and resplendent, and is hailed as one of the trees with the most fiery red colours. Because "leaves are like the feathers of a flying phoenix, flowers like the crest of a red phoenix," it is named the flame tree (Delonix regia), a famous tropical ornamental tree species.
2. Habits of the Flame Flower
The flame tree is a tropical tree species and begins to flower 6-8 years after planting. It likes high temperatures, high humidity and a sunny environment, with an optimum growing temperature of 20-30°C; it is not cold-tolerant, and the winter temperature should not be lower than 10°C. Deep, fertile, organic-rich sandy loam is ideal; it fears waterlogging, so drainage must be good; it is fairly drought-tolerant; and it tolerates poor soil. It has a shallow root system, but the roots are well developed and wind resistance is strong. It resists air pollution. It has strong sprouting ability and grows rapidly. Generally, a 1-year-old plant can reach 1.5-2 m in height, a 2-year-old plant can reach 3-4 m, and it begins to flower 6-8 years after planting. In South China, the winter buds sprout in early February each year, growth peaks from April to July, growth declines in late July due to excessively high temperatures, growth speeds up after mid-to-late August as temperatures drop, growth slows after October, and leaves fall from December to January of the following year.
The flame tree begins to flower 6-8 years after planting. It likes high temperatures and many sunny days, and must be grown in a spot with ample sunlight to flourish, so it grows faster in the tropical south. Generally, a 1-year-old plant can reach 1.5-2 m in height, a 2-year-old plant can reach 3-4 m; the tree is tall with a large crown. The flame tree likes light and has a shallow root system, with an average optimum temperature of 20-24°C. The winter buds sprout in early February each year, growth peaks from April to July, growth declines in late July due to excessively high temperatures, growth speeds up after mid-to-late August as temperatures drop, growth slows after October, and leaves fall from December to January.
It likes light and a hot, humid climate. It can adapt to full sun or partial sun at the cultivation site. The soil must be fertile, organic-rich sandy loam with good drainage. It is not tolerant of drought or poor soil, is not cold-tolerant, and resists wind and air pollution. It is used as a garden landscape tree, shade tree and street tree. The flame tree is suitable for planting in sandy soil with ample sunlight, some shelter and good drainage. Its flowering period is from June to July. For propagation and cultivation by seed, the seeds must first be soaked in 90°C hot water for 5-10 minutes, which gives a higher germination rate.
3. Flower Language of the Flame Flower: Longing, Parting, Fiery Youth
Though it seems a fiery, passionate colour, the flower language of the flame flower also carries the meaning of parting; that touch of crimson red represents endless longing. When you walk along the flower-lined path that seems like a red carpet, in the instant you look up, the petals touch your heart, and the feeling of longing is hard to put into words. Yet its fiery heat cannot drive away the years of youth; that is a colour full of vitality. In the sunlight, it leaps with the melody of youth and plays touching notes.
4. Cultivation Methods of the Flame Flower
Soil: The flame tree can tolerate fairly poor soil, but it most prefers fertile, organic-rich, loose soil. Grown in the most suitable soil environment, the flame flowers it produces are even more brilliantly beautiful. The flame tree has a shallow root system, but its roots are very well developed and anchor firmly, giving it strong wind resistance.
Transplanting and planting out: Transplanting of the flame tree is aimed at seedling growth; seedlings of about 1-2 years old should be transplanted into a fertile, loose, sunny environment. Transplanting is usually carried out in early spring, and after transplanting the row spacing of the plants should preferably be kept at about 60 cm. After 1-2 years of transplanting, once the seedlings have grown, they can be planted out. Planting out has low soil requirements and poor soil is acceptable, but the site chosen should also be open and sunny.
Watering: The flame tree is drought-tolerant, but the amount of water given must be controlled. Because its roots have rhizobia, in poor soil it can fix nitrogen to increase soil fertility, but waterlogging will cause the rhizobia to die, thereby affecting the normal growth of the whole plant.
5. Propagation Methods of the Flame Flower
The common propagation method for the flame flower is propagation by seed. Seeds are generally sown in spring and can mature in 12 months. Before sowing, the seeds need to be soaked: first soak the seeds in boiling water, then, after the water has cooled, soak them for about 2 days, changing the water once in between. Only after this treatment can the seeds be sown; they generally begin to germinate in about a week and begin to sprout in 3 weeks.
The above is the relevant introduction in this article. I believe that after reading it you now have a basic understanding of this. If needed, you can continue to follow No.1 Home Network to learn more information.
Flame Flower Picture Gallery and Flame Tree Cultivation Techniques
The flame flower is hailed as one of the most brilliantly coloured trees in the world. Its flower colours are vivid, and the bright red or orange flowers combined with bright green pinnate compound leaves look especially beautiful, with great ornamental value. Below, the editor takes everyone to enjoy them.
Flame Flower Pictures
About the Flame Flower:
The flame tree (Delonix regia) takes its name from the saying "leaves like the feathers of a flying phoenix, flowers like the crest of a red phoenix." Also known as golden phoenix flower, red flower phoenix tree, fire tree, foreign phoenix, etc., the flame tree is hailed as one of the most brilliantly coloured trees in the world because of its bright red or orange flowers combined with bright green pinnate compound leaves. It is the national tree of the Republic of Madagascar in Africa, the city tree of Xiamen, Tainan City in Taiwan, China, and Panzhihua City in Sichuan, the city flower of Shantou City in Guangdong Province, the city flower of Zhanjiang City in Guangdong during the Republic of China period, and the campus flower of Shantou University and Xiamen University.
The flame tree is a tall plant, reaching over 20 metres. Because its crown spreads horizontally and droops, dense, broad and wind-catching, it plays the role of a shade tree in tropical regions. It naturally likes high temperatures and many sunny days and must be grown in a spot with ample sunlight to flourish. It is distributed in southern and southwestern China, its native Madagascar, and tropical regions around the world.
Flame Flower Pictures
Morphological Characteristics of the Flame Flower：
A tall deciduous tree, thornless, over 20 metres tall, with a trunk diameter at breast height of up to 1 metre; bark rough, greyish-brown; crown flat-rounded, with many spreading branches; young twigs often covered with short soft hairs and with obvious lenticels. The leaves are bipinnately even-pinnate compound leaves, 20-60 cm long, with stipules; the lower stipules are obviously pinnately divided, the upper ones bristle-like; the petiole is 7-12 cm long, smooth to covered with short soft hairs, grooved on the upper side, swollen and cushion-like at the base; the pinnae are opposite, 15-20 pairs, up to 5-10 cm long; the leaflets number 25 pairs, densely opposite, oblong, 4-8 mm long, 3-4 mm wide, silky-hairy on both sides, with an obtuse apex, oblique base and entire margin; the midvein is obvious; the petiolules are short. The corymbose racemes are terminal or axillary; the flowers are large and beautiful, 7-10 cm in diameter, bright red to orange-red, with a pedicel 4-10 cm long; the receptacle is saucer-shaped or shortly top-shaped; there are 5 sepals, red inside with greenish-yellow edges; there are 5 petals, spoon-shaped, red, with yellow and white markings, 5-7 cm long and 3.7-4 cm wide, curling back toward the calyx after flowering, with a slender claw about 2 cm long; there are 10 stamens, red, of unequal length, 3-6 cm long, curving upward, with thick filaments, the lower half covered with cottony hairs, and red anthers about 5 mm long; the ovary is about 1.3 cm long, yellow, covered with soft hairs, sessile or shortly stalked, with a style 3-4 cm long and a small, truncate stigma. The pod is strap-shaped, flat, 30-60 cm long and 3.5-5 cm wide, slightly curved, dark reddish-brown, blackish-brown when mature, with a persistent style at the tip; there are 20-40 seeds, transversely oblong, smooth, hard, yellow stained with brown spots, about 15 mm long and about 7 mm wide. The flowering period is June to July, and the fruiting period is August to October.
Flame Flower Pictures
Growth Habits of the Flame Flower:
The flame tree is a tropical tree species and begins to flower 6-8 years after planting. It likes high temperatures, high humidity and a sunny environment, with an optimum growing temperature of 20-30°C; it is not cold-tolerant, and the winter temperature should not be lower than 10°C. Deep, fertile, organic-rich sandy loam is ideal; it fears waterlogging, so drainage must be good; it is fairly drought-tolerant; and it tolerates poor soil. It has a shallow root system, but the roots are well developed and wind resistance is strong. It resists air pollution. It has strong sprouting ability and grows rapidly. Generally, a 1-year-old plant can reach 1.5-2 m in height, a 2-year-old plant can reach 3-4 m, and it begins to flower 6-8 years after planting. In South China, the winter buds sprout in early February each year, growth peaks from April to July, growth declines in late July due to excessively high temperatures, growth speeds up after mid-to-late August as temperatures drop, growth slows after October, and leaves fall from December to January of the following year.
Flame Flower Pictures
Cultivation Techniques for the Flame Flower:
Seed sowing is commonly used to raise seedlings. The thousand-seed weight is about 400 grams. The seed coat absorbs water with difficulty, so the seeds need to be scalded with 80°C warm water to promote germination, then, after natural cooling, soaked for a further 24 hours and drained before use. Sow by the drill or spot sowing method. Seedlings are fairly sensitive to frost; a compound fertiliser may be applied early on, with little nitrogen fertiliser, and fertilisation should stop after autumn to encourage early lignification. In winter, if the leaves have not yet fallen, they can be cut off by hand, and plastic film covering or individual wrapping can be used to protect against frost. 1-year-old seedlings can be lifted from the nursery for planting out.
Flame Flower Pictures
Ornamental Value of the Flame Flower:
The flame tree has a tall crown; in the flowering period the flowers are red and the leaves green, the whole tree like fire, magnificent and resplendent. Because "leaves are like the feathers of a flying phoenix, flowers like the crest of a red phoenix," it is named the flame tree (Delonix regia). It is a famous tropical ornamental tree species.
It is planted quite extensively in botanical gardens and parks in cities in southern China, as an ornamental tree or street tree.
Street tree: As street greenery, trees have a microclimate effect of cooling and increasing humidity in summer, and are landscape trees that green, beautify and scent the environment.
Shade tree: In midsummer, a flame tree with a trunk diameter at breast height of 7-8 cm can have a maximum crown spread of 8-10 metres, with a shading rate of 50%-70%. The flame tree has many branches, and there is little difference between the middle and the edge of the crown, so the shading effect is fairly uniform and ventilation conditions are good. The relative temperature inside the crown is 3°C lower than in exposed places outside, and at most 6°C lower. In summer, the planting site generally stays at around 23-28°C, and the relative humidity inside the crown is 10%-20% higher than in exposed ground outside.