Management skills of fertilizer and water in eight immortal flowers

The eight Immortals, also known as Hydrangea, has many flowers, large flowers, colorful flowers, long flowering period and high ornamental value. The eight Immortals can grow normally and blossom smoothly in the fertile and well-drained acid soil. Therefore, to preserve the eight Immortals, it is necessary to master the skills of fertilizer and water management:

In the early spring every year, combined with changing the basin, improve the basin soil, prevent the basin soil from hardening and Alkalization, remove about 2/3 of the old basin soil, use 5 parts of rotten leaf soil, 4 parts of retting mature pond mud, 1 part of clean fine river sand, mix 15-20 grams of ferrous sulfate, and mix it evenly, then prepare a loose, fertile and acidic new nutrient soil, fill it back into the basin, and the eight Immortals can quickly grow developed new roots and luxuriant new leaves. During the growth period of eight Immortals, fertilizer must be applied every 15-20 days, 25-30 grams of peanut cake fertilizer or rapeseed cake fertilizer which has been retted and deodorized, 10-15 grams of potassium dihydrogen phosphate or high-efficiency biological phosphorus and potassium fertilizer, 5-10 grams of ferrous sulfate, 1.5-2 kilograms of human and animal manure water mixed with water or retting and deodorized human and animal manure water. Before each fertilization, the basin soil should be shallow ploughed about 5-6 cm. The surface of the basin soil is loose, which is beneficial to the infiltration of fertilizer and liquid, so as to improve the effect of fertilization.

The eight immortal flowers have luxuriant stems and leaves, hypertrophic leaves, more water evaporation and large water requirements. Only with sufficient water supply can they grow normally and blossom smoothly. In addition to the low temperature in winter and strict control of water, the basin soil should be kept moist in spring, summer and autumn. Generally, the roots should be drenched with clean water every 2-3 days, about 2-3 kilograms per pot, so that water can quickly infiltrate into the basin soil and not accumulate at the mouth of the basin. In addition, during the period of high temperature, drought and strong sunshine in summer and autumn, clear water must be sprayed on each leaf surface every morning and evening to evenly spray all the leaves, so that it is appropriate to start dripping water, so as to keep the leaves moist and wash the dirt adsorbed on the leaves to keep them fresh, green and shiny.