2. Collect pine needle leaves, willow leaves and poplar leaves in autumn, put them in large flowerpots or black plastic bags, add a little ferrous sulfate or ferric citrate to one layer of leaves and one layer of peat soil or garden soil, soak them in water, cover them and compact them.
3. Fermenting in autumn and winter to obtain acidic soil; Willow leaf fertilizer is most suitable for Milan, Gardenia, Osmanthus fragrans, Four Seasons Spring, Four Seasons Begonia, Guayeju and Cyclamen.
Extended data
Matters needing attention
1, and the usual maintenance can be assisted by the mixed solution of ferrous sulfate, ferric citrate and water. According to the ratio of spring 12: 6: 100 and summer: 6: 4: 100, then put it into a soft plastic bottle, bury the bottle in the soil, and screw the bottle cap tightly until it leaks slightly, so that the fertilizer solution can slowly penetrate into the soil. ?
If the leaves are used as fertilizer, they need to be fermented for a long time. Too short a time is not enough, and you can't be too anxious.