2. If you want to grow watermelon on the balcony, you need to choose a long flowerpot. The depth of the flowerpot does not need to be particularly deep, and it is similar to the depth of a general flowerpot. It can be longer. The flowerpot needs to be breathable.
3. Planting watermelon has certain requirements for soil. Generally speaking, we'd better choose fertile soil, and some base fertilizer can be added to the soil appropriately, because the soil with fertilizer is more conducive to the growth of watermelon. You need to ensure that the soil is loose.
4. The sunshine requirement of watermelon planting is relatively high. When we plant it on the balcony, we need to give it direct sunlight. Therefore, we'd better open the window every day to irradiate the sun, which is beneficial to the growth of watermelon.
5. It is very important to water watermelons on the balcony. Usually we just choose to water it twice a week. After each watering, we need to make sure that the soil is moist. In this case, water is basically enough.
6. Watermelon has a great demand for fertilizer. If watermelons are planted on the balcony, fertilizer can't be used casually. So we'd better choose liquid organic fertilizer for fertilization, usually once every half month.
7. The temperature of the balcony is generally difficult to grasp. So when planting watermelons on the balcony, we need to cover them to keep warm. Generally, it is better to control the temperature between 20 and 35.