How to raise eight immortals hydrangea flowers
Xiaobian will introduce you to the topic of flowers and plants on how to raise the Eight Immortals hydrangea flowers and the precautions for maintaining hydrangea flowers. Let's take a look next.
Hydrangea, also known as hydrangea, belongs to the deciduous small shrub of the family Saxifraga. It has green leaves, bright colors, and a long viewing period. It is deeply loved by people. Plant characteristics Hydrangea is native to the Yangtze River Basin and provinces to the south of my country. The natural height of the plant is 1 to 2 meters, and the height of the potted plant is mostly controlled at 30 to 50 centimeters. Leaves opposite, obovate or elliptic, margin serrate. The corymb inflorescences are terminal, 20 cm in diameter, nearly spherical, with few sexual flowers and small flowers, and many and large asexual flowers. The colors are changeable, starting with white, gradually turning blue or pink, and the natural flowering period lasts from May to July. Ecological Habits Hydrangea likes warm and humid environments, with suitable growth temperatures of 18℃ to 28℃, and no lower than 5℃ in winter. The light should be semi-cloudy. If it is too strong, the leaves will be burned and curled. It prefers loose and fertile soil, which requires high water, but avoids standing water and has strong resistance to harmful gases such as sulfur dioxide. Common cultivar V. hortensica: The flowers are all sterile flowers, with ovoid sepals. Blue-edged hydrangea (V. coeruleaWils): The flowers are bisexual, dark blue, with blue or white flowers on the edges. V. otaksaBailey: The flowers are sterile, the inflorescences are large, the diameter can reach 20 cm, the leaves are thick, and the inflorescences are round, blue or light red. They are mostly used in gardens. Silver hydrangea (V. maculata Wils): There are two types: fertile and infertile. The leaves are narrow and the edges are white. They are used for ornamental leaves. Breeding method Hydrangea can be propagated by methods such as dividing, layering, and cuttage.
Cutting can be carried out all year round in the greenhouse. It is usually carried out from May to June, combined with early spring pruning and post-flowering shaping. Select semi-lignified branches that are free of pests and diseases, each section is 10 to 15 centimeters long, retain 2 to 3 nodes and 1 to 2 top leaves, and insert them into a seedbed with river sand or vermiculite as substrate for appropriate shade. Keep the substrate moist and the air humidity above 80%, and take root in about 18 days. In the future, gradually reduce the number of water sprays and increase the light, and transplant can be carried out in about 1 month. Cultivation and management. After planting and transplanting cuttage seedlings take root, they must be put into pots in time. Hydrangea likes loose, fertile, and well-drained soil. It is usually prepared with legus soil, garden soil, and organic fertilizer in a ratio of 4:4:2. For large-scale production, grass carbon, perlite, and organic fertilizer should be used in a ratio of 6:2:2. Prepare and thoroughly disinfect before use.
Fertilizing hydrangea likes to fertilize, and generally chase organic fertilizer every half a month. More nitrogen fertilizer should be needed in the early stage of growth, more phosphorus and potassium fertilizer should be provided during flower bud differentiation and bud formation. You can also spray 0.1% to 0.2% potassium dihydrogen phosphate on the leaves 2 to 3 times, and stop fertilization after the flower buds are transparent.
Watering hydrangea leaves produce a large amount of transpiration, so watering must be done in time. Even if they wilts due to lack of water for a short period of time, it can cause the leaf margins to dry out and the flowers to die. Especially in summer, it is necessary to cover shade and cool down to reduce transpiration and maintain air humidity of more than 60%. In addition, the color of hydrangea is affected by soil pH and usually turns blue in acidic environments and red in alkaline environments. Therefore, the pH value of the water should be determined based on the color required.
How to raise eight immortals hydrangea flowers
Temperature Hydrangea is not resistant to high temperatures and requires a temperature between 15 ° C and 25 ° C. High temperatures will make the plants short and dilute the colors and reduce the quality. After the flower buds appear, the temperature is kept at 10℃ to 12℃ to improve the color and keep fresh.
Light and hydrangea are resistant to shade, and direct sunlight will cause sunburn, so cover the shade. Generally, 60% of the light needs to be shaded during the growth period, and appropriate shade should be shaded after the inflorescences are transparent to avoid the color fading and losing its luster.
Pruning hydrangea has strong germination, and many nutrient branches will germinate at the base of the plant. In order to reduce nutrient loss, they must be removed in time. If old branches need to be replaced, you can choose strong nutrient branches as preparation branches. Cut short in time after flowering and retain 2 to 3 strong buds to promote new branches.
Flowering period regulation In order to make the hydrangea bloom during the Spring Festival, healthy plants of 3 to 5 years old can be selected. After being treated at low temperature of 2℃ to 4℃ for 14 days, they are moved into a greenhouse and warmed up. Keep it at 10℃ to 20℃ for 50 to 60 days. Blossoms. Pay attention to regular ventilation, maintain good light conditions and high air humidity, and apply organic liquid fertilizer once every half month until it blooms.
The above Green Plant Mystery website [www.lvzhimi.com] provides a comprehensive introduction on how to raise Eight Immortals hydrangea flowers and the precautions for maintaining hydrangea flowers, hoping to bring some relevant knowledge on green plants to green plant fans.