When do yellow acacia flowers bloom?
For many girls, the introduction of when yellow acacia flowers bloom and the related introduction of green plants and flowers such as yellow acacia planting techniques, the following is the introduction for netizens by the site editor.
Species Introduction: The yellow acacia belongs to the Fabaceae family, Papilionaceae subfamily, acacia genus, also known as mountain laburnum, golden phoenix tree, golden medicine tree, acacia tree, bean acacia, and yellow acacia. Yellow acacia is not the scientific name of this plant, but rather a name used in landscaping and horticulture. The true yellow acacia is another plant. The yellow acacia is evergreen in subtropical regions and is adaptable for planting in areas south of the Great Wall where temperatures do not drop below -17°C. It is native to the West Indies and Southeast Asia and is widely cultivated in China, from the southern part of Guangdong to the northern part of Guangxi, as well as in Guizhou and Sichuan provinces. With the continuous progress of modern urban construction and the continuous improvement of landscaping standards, the application of yellow acacia as a major flowering tree species in late autumn has increased, and it is now widely used as a street tree or for color belt applications.
I: Growth Habit Introduction
Yellow acacia is bred from the traditional Chinese acacia and American golden border yellow acacia, double-pod acacia, and is a deciduous small tree or shrub. The plant height is 3-4 meters, with 5.7 pairs of small leaves. It begins to bloom in August each year, with buds like golden beans and flowers like golden butterflies, bearing legume fruits belonging to the Fabaceae family. It grows vigorously with abundant branches and leaves, large and bright flowers, and golden flower color (egg yolk), hence the name "聚宝黄金树" (Treasure Accumulating Golden Tree). It does not shed leaves in cold frost, filling the gap of ornamental trees in early winter, not as beautiful as spring but comparable to it, with a high taste. Evergreen small tree. Height - 10m, generally 3-5m is the best viewing height. The crown is tall and round. It has even-pinnate compound leaves with 7-9 pairs of small leaves, and the petiole and base of the main axis have glands. The corymbose raceme inflorescence is located on the upper branches and leaf axils, with bright yellow flowers about 5cm in diameter. It can bloom throughout the year, but September to October is the peak period. The legume fruit is flat, bead-like, 7-9cm long, maturing from January to February, with black-brown seeds.
Yellow acacia prefers sunlight, can tolerate some shade, grows fast, and is suitable for growing in loose, well-drained soil. It blooms vigorously in fertile soil and is耐修剪 (prune-tolerant).
II: Main Value Introduction of Yellow Acacia
In cold regions, it is used for potting and making盆景 (bonsai), moving it into a sunny room or greenhouse during the peak bloom in winter. The golden瑞气 (auspiciousness) of golden beans and golden butterflies accompanying it brings stylish flowers into warm homes, making the warm winter joyful. The plant is strong, and 1-year-old seedlings as small as 80-100cm can bloom. The tree posture is clean, bright, and popular, but due to the lack of large-scale seedling breeding, it is not commonly seen in urban and street绿化 (greening). It is a rare variety, and experts predict that in the long-term urban beautification tasks, yellow acacia is an essential choice; its appearance supplements a new talent in the winter flower market. It blooms in summer and autumn, with a long blooming period of about 3-4 months, bright yellow flowers, striking in color, not delicate, often used as an ornamental flowering tree species for factory, campus, or urban road greening.
III: Planting Technique Introduction
1. Propagation and Cultivation
Mainly propagated by seed sowing, but can also be propagated by cutting. Cut the current year's lignified branches and soak them in 50mg/kg ABT2 rooting powder water for 2 hours before planting, which results in a higher survival rate. It is suitable to perform this in spring or summer, using grey shade nets to shade the seedbed when the sun is strong, maintaining moisture for easy root growth. The best soil for cultivation is well-drained loamy or sandy loam soil with sufficient sunlight. Fertilize every 1-2 months during the growing season. Prune and shape once from late winter to early spring, and for aging plants, strong pruning should be performed to promote new branch growth, achieving the goal of more branches and leaves. For potted plants, choose a large pot larger than 33cm, with loose and fertile soil, which can be pruned according to personal preference. Avoid waterlogging, somewhat drought-tolerant, with an optimal growth temperature of 17-30°C.
When do yellow acacia flowers bloom?
2. Seed Propagation
(1) Preparation before Sowing
Select a nursery site. Generally, flat land with convenient irrigation and drainage, fertile soil, pH below 7.0, and fewer pests and weeds is chosen as the nursery site.
(2) Land Preparation and Bedding
Deep plowing should be done in winter, about 25cm deep, to allow soil aeration and reduce pests and diseases. Half a month before sowing, apply 2.5 tons of organic fertilizer per hectare and disinfect the soil (using 5-7.5kg of furantran, 10kg of ferrous sulfate, and mud scattered on the nursery site), then plow and bed. The bed should be 1m wide, 25cm high, 10-20m long, with a 30cm wide path and 25cm deep.
(3) Seed Selection and Germination
Seeds purchased on the market generally have a low purity, so selection must be done before sowing, removing seeds that are not fully developed and leaving pure seeds for germination. Soak the seeds in water for half a day, then remove them and place the seeds on wet burlap, covered with another wet burlap on top. After about a week, they will germinate. Once germination begins, sow immediately. The optimal sowing period for yellow acacia is from late February to early March, using a drill sowing method with a furrow depth of 1.5-2cm and a row spacing of 20cm. The sowing rate is 2kg per 667 square meters. After sowing, cover with fine soil, 1.5-2cm thick, and gently tamp down with a board to reduce the phenomenon of seedlings emerging with shells. Then cover with稻草 to keep warm and moist, preventing soil compaction and aiding seed germination.
3. Cultivation Management
After covering the seedbed with grass, immediately spray a thorough watering, ensuring even distribution. Keep the seedbed moist, and after about 15 days, the seedlings will start to emerge. After the seedlings emerge, promptly and carefully remove the grass. When 50% of the seedlings have emerged, remove all the grass. Delayed grass removal can cause seedling loss. After emergence, there may be dense and uneven areas. To ensure that seedlings have enough nutritional space and to grow strong seedlings, thinning should be done in dense areas and seedlings used to fill gaps. Normal field management includes喷水保湿 (watering to keep moist), weeding, loosening soil, and fertilizing. "Remove weeds as they appear, early and small." When the seedlings reach about 10cm in height, apply 10% dung water as a top dressing every 15 days to accelerate seedling growth.
Above is a detailed explanation of when yellow acacia flowers bloom and the introduction of yellow acacia planting techniques, for reference and suggestions only!