Several flowering foliage plants recommended; they can be grown as potted bonsai and also used in courtyard gardening

Frangipani is a sun-loving tree species and prefers a hot, humid environment with plenty of sunlight. However, it can also grow in semi-shaded conditions; but in a shaded environment the branches become leggy, with few flowers or with leaves growing and no flowers; and in a shaded, humid environment, yellow-flowered frangipani will grow aerial roots on the branches. The soil suitable for planting frangipani is preferably a deep, fertile, well-aerated, organic-rich acidic sandy loam; plants grown this way are robust, with a large number of flowers and vivid flower color. When the soil is poor, frangipani grows and develops poorly, with small flowers and dull flower color. Frangipani is drought-tolerant, dislikes waterlogging, and has good stress resistance. However, drought is not conducive to plant development, and in severe cases leads to poor growth; waterlogging easily causes root rot. Frangipani has poor cold tolerance, and the most suitable growing temperature is 20-26°C; during overwintering, prolonged periods below 8°C make it prone to cold damage. In the vast number of towns south of the Tropic of Cancer in China, open-field cultivation can generally overwinter safely; in central and northern China, it is only suitable for pot cultivation and must be brought into a greenhouse to overwinter in winter.

Wisteria

Wisteria, also known as vine pea, Zhu vine, and yellow ring. It belongs to the legume family, genus Wisteria, and is a deciduous climbing, twining large woody vine. The bark is dark gray and does not split; it blooms in spring, with blue-purple pea-like corollas, and the flowers are purple or deep purple, very beautiful. Wisteria is a warm-temperate and temperate plant and has strong adaptability to the growing environment. It is produced south of Hebei in the Yellow River and Yangtze River basins, as well as in Shaanxi, Henan, Guangxi, Guizhou, and Yunnan. Among the people, the purple flowers are either blanched and eaten as a cold dish, or coated in batter and deep-fried, to make flavored wheaten foods such as "purple vine cake" and "purple vine pastry." Wisteria is a warm-temperate and temperate plant with strong adaptability to climate and soil. It is relatively cold-tolerant, can withstand water moisture and poor soil, likes light, and is relatively shade-tolerant. It is most suitable for cultivation in places with deep soil layers, good drainage, sun exposure, and shelter from wind. The main root is deep, the lateral roots are shallow, and it does not tolerate transplanting. It grows relatively quickly and has a very long lifespan. It has strong twining ability and has a strangling effect on other plants.

Wisteria has strong adaptability and is heat-tolerant and cold-tolerant, and is cultivated from south to north in China. Therefore, in Guangdong, it can adapt to the temperature throughout all four seasons. When overwintering, it should be placed at a low temperature of around 0°C, keeping the potting soil slightly moist so that the plant can fully enter dormancy. In ancient times it was also called vine pea and zhao dou vine. It is native to China, and is also distributed in Korea and Japan. It is widely distributed in northern China, and is most common in Hebei, Henan, Shanxi, and Shandong. It is cultivated in eastern China, central China, southern China, northwestern China, and southwestern China. In China, as far south as Guangdong, it is commonly cultivated in gardens for ornamental purposes. Common varieties include many-flowered wisteria, silver wisteria, red jade wisteria, white jade wisteria, and Nanjing wisteria. Shanghai has Wisteria Town and Wisteria Garden, and Suzhou also has ancient wisteria. The main cultivation and propagation bases are in Jiangsu, Zhejiang, Hunan, and other places.

Silk tree flower

Silk tree, also known as velvet flower tree and horse tassel flower. It is a deciduous tree that blooms in summer, with head-like inflorescences, gamopetalous corollas, and many stamens, light red. The pods are linear, flat, and do not split. It is 4-15 m tall. The crown is spreading; the branchlets are angular, and the young branches, inflorescences, and leaf rachises are covered with tomentum or short pubescence. The stipules are linear-lanceolate; the head-like inflorescences are arranged in panicles at the branch tips; the flowers are pink; the calyx is tubular; the flowering period is June-; the fruiting period is August-October. It likes light and tolerates dry, poor soil. The wood is reddish brown, with straight grain and fine structure, and cracks easily when dry; it can be used to make furniture, sleepers, and so on. The bark can be used to extract tannin extract. It is native to China, Japan, South Korea, and North Korea. It is the city tree of Weihai.

Silk tree is often propagated by sowing. Seeds are collected from September to October. When collecting seeds, select plump pods free of pests and diseases, dry them in the sun and thresh them, then store them dry in a dry, ventilated place to prevent mildew. For spring seedling raising, soak the seeds for 8-10 h before sowing, then take them out and sow. Sow in drills in furrows, with a furrow spacing of 60 cm, cover with 2-3 cm of soil, and keep the seedbed soil moist after sowing; germination occurs in about 10 d. The seeding rate is about 150 kg per 1 ha. After the seedlings emerge uniformly, management work such as weeding, loosening the soil, and topdressing should be strengthened. Transplant in the second spring or autumn, with a plant spacing of 3-5 m. For 2-3 years after transplanting, weed and loosen the planting holes every spring and autumn to promote growth. In March-April of the following year, the seeds can be sown only after treatment. Because the seed coat of silk tree is hard, in order to make the seeds germinate uniformly and emerge quickly, 2 weeks before sowing soak them in a 0.5% potassium permanganate cold water solution for 2 h, then remove them, rinse them clean with clear water, and soak the seeds in hot water at about 80°C for 30 s; after 24 h they can be sown. Using this method to promote germination, the germination rate can reach 80%-90%, and after emergence the seedlings grow robustly and are not prone to disease.