For example, in autumn, there are two kinds of woody plants, camellia and snow. Camellia is in bud stage, so it is not appropriate to change pots at this time, because changing pots in bud stage will affect growth; The flowering in the snow is over. At this time, if the temperature is right, you can change it.
Changing pots has two sides. It is not a panacea. How to do it depends on the conditions. The following focuses on this aspect.
Benefits of changing pots
By changing pots, plants can be transferred to a new environment to grow and promote their growth; This is why some plants will grow better after changing pots.
Risk of changing cans
Any plant, as long as it changes its roots and soil, will have to delay its seedlings if it wants to resume its growth. How to grow up before is futile and needs to start again. After changing pots, if the external conditions are not suitable, such as high temperature and cold, it will affect its survival and even directly reduce its Q.
First, the technical points
1. Technical treatment before using a new basin
Before changing a new pot or planting flowers, soak it in clear water for a day and night, scrub it and dry it before using it to remove dryness and alkalinity. If you use an old pot, you must disinfect it first to prevent germs and eggs. The method is to expose the old pot to the sun for 4-5 hours, spray 1% formalin solution 1-2 hours, dry it for 5-6 hours, then wash it with clear water and brush off possible eggs with a brush.
2. Choose the flowerpot with corresponding caliber.
Flowerpots should be selected according to the size of plants, and large-caliber flowerpots should be selected according to the crown width of flowers and trees. In order to save the trouble of changing small pots into big ones, some people often like to raise small flowers in big pots, which is wrong and very unfavorable to the growth of flowers. Because small flowers need less fertilizer and water, and large pots have more soil, it is not only wasted, but also the amount of water and fertilizer is often difficult to master, which affects the normal growth of flowers, and there will be overnutrition, slow growth and difficulty in flowering.
3. Treatment of flowerpot bottom
Before putting the pot, the drain hole at the bottom of the flowerpot should be covered with 1~2 broken pots and made into a herringbone shape, so that the drain hole can be covered but not blocked, and when there is too much water, it can flow out from the gap of the broken pots to avoid root suffocation, poor growth or death caused by accumulated water in the pots. When planting precious flowers and trees such as Clivia, orchids and tulips. The bottom of the basin should be padded with several broken pots and some cinders or small gravel to increase the drainage capacity and solve the ventilation problem.
4. Plant flowers and trees correctly
Flowers and plants must be placed in the center of the basin. After being steadfastly upright, nutrient soil should be slowly added around the basin, and then gently compacted at the middle of the waist, so that the plants can be closely combined with the soil. For flowers and trees without a ball, when the nutrient soil is added to half, the plant should be lifted slightly upward to stretch the roots, and then compacted while adding soil until it is 2~3 cm away from the pot edge. After planting flowers and trees, water them once, and then leave them in the shade for about half a month. Flowers and trees gradually come back to life, and after adapting to the soil environment, they should be moved to the sunny place and transferred to normal management.
Second, the specific methods
1. Before the flowers germinate in early spring.
2. In the process of making flowerpots, the bottom holes of flowerpots often have upward edges. If this edge is not removed, it will affect the drainage in rainy season, and it should be knocked out when changing pots. Plastic screen windows can also be used as the bottom when serving in the basin to prevent grubs from entering the basin.
3. When changing pots, the poured root clods must be cut off with a sharp spatula, and the soil on the root surface should also be loosened with a spatula, otherwise the root system will not extend around the pot wall, which is easily affected by drought, waterlogging, cold and heat changes, and the plants are often stunted. When changing pots, it is best to keep 1/3 old soil and add 2/3 new soil to increase fertilizer.
4. After the new soil is replaced by the pot, the pot soil must be compacted to avoid the occurrence of caves in the pot soil after watering, which will affect the water absorption of the roots. In addition, there should be a watering place. The soil in the basin is too full and there is no place to hold water.
5. After changing the basin for half a day, pour enough water to make it permeable. After changing pots, it is best to soak the pots for the first time. Put the potted flowers in the pot until the soil surface is wet and take them out. After the first watering, wait until the soil is dry and the surface is white before watering, and master the principle of no watering.
6. After changing pots, the potted flowers should be placed in a cool place, never exposed to the sun, and always spray water on the leaves. During this period, the flowers can not be fertilized, and then gradually move back to the sun after 8 days.
In addition, in the process of bonsai cultivation, the original plants should be replaced with the original pots: after the plants are poured out, the soil balls should be stripped of a layer of soil, the old roots and shoots should be cut off and replaced with new soil, so that flowers and trees can still be planted in the original pots, which can make the stems grow thick and the crown expand. Finally, when some flowers change pots, some branches and leaves should be cut off to reduce evaporation. When changing pots, the flowers of the bromeliad family should be covered with plastic film and kept at high temperature and humidity until they return to normal growth.
Third, the matters needing attention in changing the pot
1. When changing pots, try to bring soil to the roots of plants and try to avoid bare roots; This is because transplanting with soil is easier to survive than transplanting with bare roots.
2. When changing pots, if the original flowerpot is a soft plastic pot (or paper cup), it is recommended to cut it to avoid hurting the roots of plants.
3. Don't change the pot continuously in a short time. Generally, the interval between two pots should be at least half a year or even longer; However, there are some special cases for plants that are growing seedlings. According to the growth of seedlings, they can be replaced once they grow up, and they can be replaced frequently.
Fourth, the timing of changing pots depends on the season.
1, which is most suitable for spring and autumn; Some plants are also suitable in winter.
2, but in any case, don't change the pot for it in the hot summer. Changing pots will not only affect slow seedlings, but also make them q faster.
5. The timing of changing pots depends on the growth of plants.
1, which is most suitable for plant dormancy and early growth. Changing pots in these two stages has little effect on plant growth.
2. It is not suitable for vigorous growth period, bud period, flowering period and fruiting period of plants. Changing pots during this period will affect the growth and make it miss the growth period; Or let the flowering plant miss the flowering period, and the consequences are very serious.
3. Don't change the plants in the slow seedling stage, because the flowers are not damaged at all. At this time, changing them will cause secondary damage and prolong the slow seedling stage indefinitely (it should be restored in a few days, but it will be delayed to ten days or even longer). If the pot changing season is not suitable, it may even be thrown away directly in the midsummer season.
A case study of intransitive verbs
1, for newly bought plants, under normal circumstances, as long as the flowerpot is suitable, it can be replaced; However, if you think the flowerpot is not suitable, or the soil is not suitable, you can change it the day after you buy it. Don't wait a few days to change it, because it will involve the influence of secondary root removal and slow seedling growth. It is not appropriate to change the flowerpot in a few days.
2. In the season that is also suitable for changing pots, whether you can change pots should be treated separately according to the habits of plants.