Growth habit: like light, slightly tolerant to shade, but the leaf color tends to turn green when it is cloudy. Strong adaptability and drought tolerance. Like warmth, resistant to cold. Strong sprouting power and branching ability, resistant to pruning. It is barren-tolerant, but suitable for growing in fertile, moist and slightly acidic soil.
Ornamental value: Acer rubrum is luxuriant in branches and leaves, graceful in posture, resistant to pruning, and full of safflower in flowering season, which is extremely spectacular.
Basic protection is needed for wintering in Shandong.
picture
picture
picture
picture
2. Palm trees can be planted in Shandong and the south, but it is not recommended to plant in the north of Shandong. It is recommended to plant more trees. Evergreen tree species, like warm and humid climate, like light, strong cold resistance, slightly shade-tolerant, suitable for neutral, calcareous or slightly acidic soil with good drainage, moist and fertile soil, light saline-alkali resistance, certain drought and water humidity resistance, and strong air pollution resistance. Easy to fall, slow to grow.
picture
picture
picture
picture
3. Podocarpus-There are many bonsai in the north area, and there are many varieties. In recent years, with the progress of planting and maintenance technology, large Podocarpus modeling trees have been applied in the north area, but they need to be protected by heat preservation in the winter in the north area.
Podocarpus likes warm and humid climate, and the suitable growth temperature is 15-28℃. Weak cold resistance and strong shade resistance. Sandy loam, which likes good drainage and moisture, has strong adaptability to soil and can survive on saline-alkali soil.
picture
picture
picture
4, spruce-alias Maoxian spruce, Maoxian fir, is an evergreen tree.
Picea crassifolia is shade-tolerant, cold-resistant, likes cool and humid climate and fertile and deep, well-drained slightly acidic sandy soil. It grows slowly and belongs to shallow-rooted tree species. Spruce is a shallow-rooted tree species, which is slightly shade-tolerant, resistant to dry and cold environmental conditions, and grows rapidly and well in the slightly acidic brown forest land belt with cool climate, deep soil layer and good drainage.
Before and after Christmas in winter, it is often placed in restaurants, hotels and some families for Christmas tree decoration.
picture
picture
picture
5. Five-needle pine in Japan-a plant belonging to the genus Pinaceae, is an evergreen tree of Pinaceae. Five-needle pine is named after five leaves. There are many varieties of five-needle pine, among which the big pine with the shortest needles (about 2 cm long leaves) and tight branches is the most precious.
Positive trees like to grow in places with deep soil, good drainage and proper humidity, and do not grow well in damp places. Although it has strong resistance to sea breeze, it is not suitable for sand growth and its growth rate is slow. Not resistant to transplantation, no matter how big or small the seedlings are, they need to bring soil balls when transplanting.
Japan's five-needle pine has a vigorous and beautiful posture, lush and delicate leaves, and is full of poetry and painting, which combines the spirit, bone color and spirit of pine trees. It is a valuable ornamental tree species. Solitary planting with strange peaks and rocks, after plastic surgery, make some landscape trees in parks, courtyards and hotels, which is suitable for planting with various classical or modern buildings. Garden trees can be planted on both sides of the garden road, or 2 or 3 trees can be planted in clusters at the corner of the garden road. It is most suitable to make a landscape with rockery, or with peony, or with rhododendron, or with plum as a companion and red maple as a companion.