Culture methods of rhododendron in four seasons

Rhododendron is a variety of evergreen or common green shrub rhododendron of the rhododendron family, also known as Belgian rhododendron. Its petals are long and narrow, the flowers are red, the anthers are golden yellow, and it blossoms continuously throughout the four seasons. It is a good ornamental plant that can be planted in clusters or potted. Let's take a look at the breeding methods and matters needing attention of rhododendron in the four seasons.

Breeding techniques of rhododendron in four seasons

The four seasons rhododendron is mainly propagated by cuttings, selecting short and stout biennial branches in spring and summer, cutting and inserting about 5 cm, leaving 3 leaves at the top. Sand and perlite are the best cutting media. Shade and spray water frequently. It takes about 1 month to take root after cuttage, and it can be put on the pot in 3 months. The survival rate is more than 90%. The basin soil should choose the same period, permeable, acidic culture soil rich in organic matter, PH value 5: 6, commonly used humus soil, moss, mud mixed at 2:1:7.

Culture methods of rhododendron in four seasons

1. Watering: the roots of azaleas are very thin, and their absorptive capacity is poor, and water must be absorbed through roots in order to reach the flower body, so watering azaleas should be watered frequently except in the dormant period in winter. especially in the growth period after March, the flowering period, and the high temperature period from July to September, we should increase the frequency of watering, and it is best to ensure that it is watered about twice a day, and there can be less watering in autumn and winter. It should be noted that the tap water used to water the flowers is best stored with utensils for one or two days before watering the flowers.

2. Illumination: in the process of rhododendron culture, sufficient light should be ensured at any time, because the flowers can blossom well. Of course, they can not be exposed to the sun in hot summer. Instead, they should strengthen the work of shielding to prevent them from being sunburned. In addition, proper protection should be done in the blooming season. The light screen can be used for protection, and the flowering period can not be exposed to the sun.

3. Fertilization: proper fertilization can make azaleas grow stronger and faster. Like most indoor flower farming, the principle of fertilization for rhododendrons is to apply more thin fertilizer, that is, if you put less at a time, you can apply more. In the old leaves turn green, during flowering, after flowering, appropriate fertilization for two to three times, during the hot weather, must not be fertilized. Azalea culture and fertilization can be used to choose grass juice water, fishy water, rapeseed cake and other materials.

4. Display: large potted rhododendron flowers are colorful and full of trees, which can be placed at the door of hotels, shops or organs, which is extremely noble and elegant and magnificent, and its ornamental effect is better than that of iron trees. The four seasons rhododendron of the middle plant is gorgeous when it blossoms and can be placed on the indoor desk or coffee table. If it is used in the layout of the conference room, it has an exhilarating effect, just like entering the land of spring all year round. And the small rhododendron of the four seasons, generally not for ornamental, should be concentrated cultivation is better, it is best to use plastic greenhouse to cultivate, after growing into a middle plant, it can be sold or for viewing.

Matters needing attention of rhododendron in four seasons

1. Pest control: red spider is more common in rhododendron of the four seasons, which is caused by dry heat. Red spider sucks leaf liquid, which makes the whole plant wilt slowly. Check the back of the leaves regularly every day. if you find some reddish brown spots like "Zi Zi", they are red spiders and spider silk. At this time, the cuckoo of the four seasons should be isolated first, and the back of the leaves with insect pests should be washed through the glue throat with more violent water. After a little dry, you can use more than 10 pieces of fresh oleander leaves, add five cigarette butts (about the weight of a cigarette) and a chopped raw red pepper, soak in 500ml water for 24 hours, spray stems and leaves every three days, and dry them in a ventilated place for three times. Keep moist and well ventilated every day.

2. Leaf yellowing: the yellowing of rhododendron leaves is a physiological disease, which is caused by lack of iron, trace elements and excessive alkalinity of soil. All azaleas like slightly acidic soil, should be loose drainage, do not harden. In serious cases, the soil should be changed and mixed with packaging "basin soil", peat soil and black mud (humus soil). Light people can bury several rusty iron nails in the mud.

3. The buds withered early: the tip and edge of the rhododendron leaves will also wrinkle and turn yellowish brown at the same time, which is caused by applying thick fertilizer when there are buds, or hot baking without ventilation, or too dry, planting soil and cementing. Should stop fertilizer when budding, put cool air circulation place, only need enough scattered light, avoid the scorching sun. The potted soil should be properly moisturized and not dry, and the soil should be changed once a year. The injured buds and leaves should be removed.

4. Leaf edge brown spot: leaf edge brown spot is the main disease of rhododendron in four seasons. It is caused by lack of light and heat. Diseased leaves should be removed and sprayed with 600 times Dasheng liquid once a week for three times in a row.