1. Specific requirements

(1) Soft and breathable: this aspect is easy to understand, in order to ensure the normal breathing of the plant. Such soil can make it grow better

(2) Good water retention: many flower friends may not understand the meaning of this term. Let's explain it first. We all know that soil contains air and water. However, some soils contain large voids, so it is easy to lose water after watering. Then, the soil will soon be in a very dry state, so the soil naturally has no water retention. The soil we need is the soil that can keep the poured water from evaporating in the soil for a long time

(3) More humus: This is the requirement for nutrition. Choosing soil with more nutrients will save us a lot of trouble later

(4) Good fertilizer retention: if you don't understand it, you can refer to water retention. Their principles are similar. Only when the fertilizer retention is good can the plant have enough nutrients to absorb

(5) Acidic: in addition to the above aspects, we also need to consider the characteristics of the plant itself. Because it likes slightly acidic soil, it is also a factor when choosing. However, slight acid is OK. The pH is about 5 to 6.5

2. Preparation method of soil

(1) As we said above, clay is airtight and does not meet the requirements. The sand has poor water retention and fertilizer retention, so it is not suitable for selection. We can choose to mix peat soil, perlite and a small amount of loam. Practice has proved that the soil made in this way can make it grow well

(2) Then you can mix some base fertilizer, such as bone meal. However, it should be put less. Otherwise, it's easy to burn roots