How to breed oleander is better Breeding method

Oleander is native to India and Iran. It is widely planted in various parts of China, likes coolness, sunshine, strong vitality, and the flowering period is 5 October, and it is not afraid of scorching sun exposure in summer, and can resist the unfavorable environment of urban dust.

In the north, oleander can only be potted, and the newly potted plants are generally selected to leave the main trunk 30 40 cm high to cut off the top to promote its germination of side branches. When the new branches grow to 3 5 cm, select 3 strong buds with appropriate orientation, and erase the rest. Strengthen fertilizer and water management, watering once a day and fertilizer once a week.

In July and August, the second pruning can be carried out, leaving 10 15 cm top of each side branch, and leaving 3 branches on each side branch, that is, the tree shape of "three branches and nine tops" can be formed. If after the first pruning, when the side branches grow to 10 15 cm, there are flower buds, or not pruning, so that it blooms, in the leaf axils at the base of the flower spike, and can grow 3 new shoots, can also form a "three branches and nine tops" tree shape.

Oleander is generally repotted in April every year, when changing the pot, remove the soil, pay special attention to the soil in the center of the soil with a shovel or bamboo stick, cut off the rotten roots and too many fibrous roots, prune off the diseased branches and weak branches, too long branches should be truncated. The inflorescences that have bloomed should be removed in time, 2 3 times a year, and can bloom 3 or 4 times. Generally, after planting oleander for 3 to 4 years, most of the branches grow weakly, so it should be combined with repotting for 1 re-pruning to promote its germination and strong branches and restore the tree's potential.

In early October, you can move into a cold room or corridor for wintering, and pay attention to ventilation at first. Keep the room temperature not lower than 0, can also be placed in a dark place without light, to promote good sleep, every 15 20 days around the water 1 time, the potting soil should not be too wet.

Oleander, which belongs to the evergreen shrub plant. It likes warm and humid climates, and is not cold tolerant; It can be planted in the open field in the warm areas of southern China. In northern China, it can only be viewed as potted plants and wintered indoors. Potted plants should be kept to a height of less than 100 cm.

Oleander is not tolerant to moisture, and the planting requires planting in a place with high dryness and good drainage. Oleander is a three-leaf whorl, which is a typical three-leaf branch, that is, three new branches are born from the stem node every time you prune once. When pruning, when the main trunk grows to a certain height, you can give birth to 3 main techniques from the main trunk, and when the main branch grows to about 20 cm or more, keep 20 cm each and then top it to make it germinate new branches.

Three more branches are kept on each main branch, each branch is kept 20 30 cm, and the upper branches are all pruned. After such pruning, a good tree shape can be formed.

When cultivating oleander, during the growth period, the plant should be placed in a warm sunny place, covered with a layer of sandy soil in winter, which plays the role of heat preservation, in addition to watering to be sufficient, it is necessary to increase the amount of watering or attack in summer, control watering in winter, apply liquid fertilizer once a month, and fertilize mainly phosphorus and potassium fertilizer during flowering.

1. Environmental management

Oleander is a kind of sunny flower, during the growth period to put the plant in the leeward of the sun to maintain, in winter need to be covered with sand on the pot soil, in order to play a role in cold protection, to the spring in April and then moved into the outdoor cultivation, summer strong light and high temperature season in the semi-shade can be.

2. Reasonable watering

Oleander likes to grow under wet conditions, during the growth period to ensure sufficient water, can not cause the substrate to dry for a long time, should follow the principle of not dry and not watering, watering is watering thoroughly, the need to increase the amount of watering in summer, the principle of keeping dry and wet in spring and autumn, and reduce the amount of watering in winter.

3. Moderate fertilization

When potting oleanders, enough base fertilizer should be applied at the bottom of the pot, mainly with well-rotted and thin compound fertilizer, liquid fertilizer should be applied once a month during the growth period, and phosphorus and potassium fertilizer should be applied during flowering, and 2 or 3 times of thin organic fertilizer should be applied appropriately at the end of autumn to promote the growth of robustness in the coming year.

4. Suitable for pruning

Oleander pruning is mainly carried out in spring, to cut off the long branches, thin branches and diseased branches in time, as well as the inner branches and useless branches should also be thinned to maintain a balance, at the same time in the pruning of special envy auspicious, oleander whole plant poisonous, wear gloves and masks before pruning, so as not to be conducive to healthy development.

1. Soil requirements. If you want to breed oleander slag socks, we generally had better choose the soil is looser and more fertile to breed, which is conducive to the rapid growth of oleander after breeding, and the requirements of oleander for the soil are generally not so high.

2. Sunlight demand. Oleander for the demand for sunlight is relatively high, we must not breed in a shady environment, generally oleander grows wild in such a place as the river, so, sunlight needs to be sufficient, otherwise it is not conducive to the growth of oleander.

3. Reasonable watering. We need to water oleander reasonably, oleander has a relatively high demand for water, we need to ensure that it is watered once a day, and we need to ensure that the soil is moist after each watering, and it is better to water it in the morning.

4. Reasonable fertilization. We also need to carry out reasonable fertilization for oleander, generally we have better choose to use organic fertilizer for fertilization, when fertilizing, you can first loosen the soil, after the loosening soil is completed, when fertilizing, around the root bird beam Qiaobu can be, generally fertilize once a month.