How to fertilize oleander

1. How to choose fertilizer for oleander

If you want flowers to grow well, fertilization is the key. So how should you fertilize oleander? First of all, we need to choose the right fertilizer. As we all know, there are many kinds of fertilizers, including specially produced chemical fertilizers, homemade farmyard manure, etc. It is not recommended to use chemical fertilizers for fertilizing oleander. You can make your own farmyard manure: animal manure and urine are rich in nitrogen, which can promote the growth of oleander plants and is an indispensable fertilizer for growth and development. However, it should not be used in excess, as excessive use will prevent the flowers from blooming. The principles of using this fertilizer are to use it dilute, light, less and frequently to prevent the roots from being burned; animal bones are rich in phosphorus, so fish bones and other bones can be crushed or ground into powder and used as base fertilizer for potted plants; plant fertilizers such as peanut cake water or bean cake water are rich in potassium, which can be used as base fertilizer for potted plants or as top dressing after fertilization.

2. Fertilization method of oleander

Oleander plants are very large and have a long flowering period, so fertilization is very necessary. Before flowering, fertilize at least twice a month; during the flowering period, apply more phosphorus and potassium rich fertilizers, and topdress every 10 days; it is best to fertilize 1-2 more times in winter. For potted oleander, apply enough base fertilizer when repotting in spring, and then it is best to apply top dressing once a week, which is rich in potassium and phosphorus. After the oleander takes root, the number of fertilizations can be reduced, but remember not to apply too much or only one type of fertilizer.

3. Precautions for fertilizing oleander

1. Oleander prefers neutral or acidic soil. It is best not to use alkaline fertilizers such as wood ash when fertilizing.

2. When transplanting potted plants, you can add 15% chicken manure to the soil in the pots, and keep the organic fertilizer at around 20%, not too much.

3. When the temperature is high in summer, for example, above 30 degrees Celsius, fertilization should be suspended to avoid fertilizer accumulation and damage to oleander.

4. The stems and leaves of oleander contain a variety of toxins. When fertilizing, be careful not to damage the stems and leaves to avoid poisoning.