A Detailed Guide to the Environmental Requirements and Propagation Methods of Camellias
Camellia is one of China's top ten famous flowers and a flowering tree species renowned throughout the world. Its leaves are evergreen and never fall, emerald green and glossy, and its flowers are extremely gorgeous, blooming so densely that they resemble brocade - truly a tree of ten thousand buds, beautiful and delightful. The camellia is native to the southern provinces of China and Japan. It naturally prefers a warm, humid climate and grows well in dappled shade. It fears the scorching sun of the north and is not cold-hardy either; the overwintering room temperature must not fall below 6°C. The optimum growing temperature is 15-25°C, and growth generally stops above 29°C.
Camellias are very demanding about soil and can only grow in acidic soil. If the soil is on the alkaline side, the leaves will gradually yellow and drop off, ultimately causing death. Camellias can be propagated by sowing, by cuttings, and also by layering and grafting. Varieties with strongly double flowers mostly cannot set seed after flowering, so no seeds can be collected. Seeds from single-flowered varieties can be collected to raise rootstock seedlings for grafting double-flowered varieties.
After the seeds mature, it is best to sow them as soon as they are collected. If spring sowing is carried out, the seeds should be stored in sand over winter and sown in February to March of the following year; after sowing, it takes more than 2 months for seedlings to emerge. Cutting propagation requires the branches to be treated in advance. In September, select well-grown current-year branches, cut off the lower leaves, keeping only 3 leaves at the top of each branch, then choose a suitable spot and remove a ring of bark; a ring of tumor-like callus will gradually grow from the wounded area. In late January of the following year, cut the branch off below the callus, wrap the cut end and the callus with mountain soil or peat, then insert it into moist plain river sand to let it take root and sprout. This method has a high survival rate and roots quickly.
When the number of plants to be propagated is small, the high-branch layering method is mostly used. Carry out high-branch layering in late September, cut away from the parent plant in April to May of the following year, plant 5-10 of them in one large flowerpot, and keep them in a shaded place for care. After a year of growth, divide the seedlings and pot them up again in March of the following year; with careful management, they can bloom before Spring Festival. Grafting includes stem grafting and bud grafting, usually using oil tea or single-flowered camellias as rootstock.
Stem grafting is carried out from May to July. For cut grafting, the stock is generally cut off at about 5 cm above the ground, split about 1.5 cm deep at the center of the stock; the scion is 3-5 cm long, with 1-2 leaves, its lower part cut into a wedge shape, inserted into the cut in the stock, and after aligning the cambium layers, it is tied and bound, then covered on the outside with a plastic bag to retain moisture, and the bottom opening should not be tied too tightly. For some rare varieties that are difficult to root, the approach grafting method is mostly used, usually carried out from May to June. About 3 months after approach grafting, once the union has healed firmly, the scion should be cut off from the base of the union to separate it from the parent plant; at the same time, the stock should also be cut off above the union, so that it becomes a new plant.
The environmental requirements and propagation of camellias
Camellia is one of China's top ten famous flowers and a flowering tree species of great renown in the world. Its leaves are evergreen and never fall, emerald green and glossy, and its flowers are extremely gorgeous, blooming so densely that they resemble brocade - truly a tree of ten thousand buds, beautiful and delightful. The camellia is native to the southern provinces of China and Japan. It naturally prefers a warm, humid climate and grows well in dappled shade. It fears the scorching sun of the north and is not cold-hardy either; the overwintering room temperature must not fall below 6°C. The optimum growing temperature is 15-25°C, and growth generally stops above 29°C. Camellias are very demanding about soil and can only grow in acidic soil. If the soil is on the alkaline side, the leaves will gradually yellow and drop off, ultimately causing death.
Camellias can be propagated by sowing, by cuttings, and also by layering and grafting. Varieties with strongly double flowers mostly cannot set seed after flowering, so no seeds can be collected. Seeds from single-flowered varieties can be collected to raise rootstock seedlings for grafting double-flowered varieties. After the seeds mature, it is best to sow them as soon as they are collected. If spring sowing is carried out, the seeds should be stored in sand over winter and sown in February to March of the following year; after sowing, it takes more than 2 months for seedlings to emerge.
Cutting propagation requires the branches to be treated in advance. In September, select well-grown current-year branches, cut off the lower leaves, keeping only 3 leaves on each branch, then choose a suitable spot and remove a ring of bark; a ring of tumor-like callus will gradually grow from the wounded area. In late January of the following year, cut the branch off below the callus, wrap the cut end and the callus with mountain soil or peat, then insert it into moist plain river sand to let it take root and sprout. This method has a high survival rate and roots quickly.
When the number of plants to be propagated is small, the high-branch layering method is mostly used. Carry out high-branch layering in late September, cut away from the parent plant in April to May of the following year, plant 5-10 of them in one large flowerpot, and keep them in a shaded place for care. After 1 year of growth, divide the seedlings and pot them up again in March of the following year; with careful management, they can bloom before Spring Festival.
The environmental requirements and propagation of camellias
Camellia is one of China's top ten famous flowers and a flowering tree species of great renown in the world. Its leaves are evergreen and never fall, emerald green and glossy, and its flowers are extremely gorgeous, blooming so densely that they resemble brocade - truly a tree of ten thousand buds, beautiful and delightful. The camellia is native to the southern provinces of China and Japan. It naturally prefers a warm, humid climate and grows well in dappled shade. It fears the scorching sun of the north and is not cold-hardy either; the overwintering room temperature must not fall below 6°C. The optimum growing temperature is 15-25°C, and growth generally stops above 29°C. Camellias are very demanding about soil and can only grow in acidic soil. If the soil is on the alkaline side, the leaves will gradually yellow and drop off, ultimately causing death.
Camellias can be propagated by sowing, by cuttings, and also by layering and grafting. Varieties with strongly double flowers mostly cannot set seed after flowering, so no seeds can be collected. Seeds from single-flowered varieties can be collected to raise rootstock seedlings for grafting double-flowered varieties. After the seeds mature, it is best to sow them as soon as they are collected. If spring sowing is carried out, the seeds should be stored in sand over winter and sown in February to March of the following year; after sowing, it takes more than 2 months for seedlings to emerge.
Cutting propagation requires the branches to be treated in advance. In September, select well-grown current-year branches, cut off the lower leaves, keeping only 3 leaves on each branch, then choose a suitable spot and remove a ring of bark; a ring of tumor-like callus will gradually grow from the wounded area. In late January of the following year, cut the branch off below the callus, wrap the cut end and the callus with mountain soil or peat, then insert it into moist plain river sand to let it take root and sprout. This method has a high survival rate and roots quickly.
When the number of plants to be propagated is small, the high-branch layering method is mostly used. Carry out high-branch layering in late September, cut away from the parent plant in April to May of the following year, plant 5-10 of them in one large flowerpot, and keep them in a shaded place for care. After 1 year of growth, divide the seedlings and pot them up again in March of the following year; with careful management, they can bloom before Spring Festival.
Grafting includes stem grafting and bud grafting, usually using tea oil camellia or single-flowered camellias as rootstock. Stem grafting is carried out from May to July. For cut grafting, the stock is generally cut off at about 5 cm above the ground, split about 1.5 cm deep at the center of the stock; the scion is 3-5 cm long, with 1-2 leaves, its lower part cut into a wedge shape, inserted into the cut in the stock, and after aligning the cambium layers, it is tied and bound, then covered on the outside with a plastic bag to retain moisture, and the bottom opening should not be tied too tightly. For some rare varieties that are difficult to root, the approach grafting method is mostly used, usually carried out from May to June. About 3 months after approach grafting, once the union has healed firmly, the scion should be cut off from the base of the union to separate it from the parent plant; at the same time, the stock should also be cut off above the union, so that it becomes a new plant.