What is the best fertilizer for hydrangea?

Hydrangea fertilization time

Hydrangeas can be fertilized during their growing period, mainly in spring from April to June and autumn from September to October. From April to June, a thin liquid fertilizer can be applied about once every half a month. Adequate nutrients can promote growth.

During the growing season of hydrangea, you can generally irrigate the soil with quick-acting fertilizer. Usually, dilute liquid fertilizer should be irrigated into the soil once every half a month. During the growing season, apply balanced fertilizers of nitrogen, phosphorus and potassium to promote growth. Reduce nitrogen fertilizer before flowering and increase phosphorus and potassium fertilizers to promote flowering.

What fertilizer to use for hydrangea

Hydrangeas like fertilizer. If you want the plant to bloom blue and purple flowers, you can apply some acidic fertilizer. You can apply base fertilizer when planting. The base fertilizer can be slow-release fertilizer, organic fertilizer, bone meal, cake fertilizer, etc. This type of fertilizer can slowly provide nutrients to the plant. Just control the amount and do not let the fertilizer come into direct contact with the root system.

During the growing period of the plant, you can apply some liquid fertilizer. You can use nutrient solution, various liquid fertilizers, etc. This type of fertilizer can provide nutrients for it quickly, but it should be applied thinly and frequently to prevent the hydrangea from overgrowing and burning the roots.

Hydrangea Fertilization Method

1. Base fertilizer: When planting hydrangeas, it is generally necessary to mix base fertilizer into the soil. Usually, for a 20-caliber flowerpot, mix 2g of slow-release fertilizer into the soil, or grab a handful of organic fertilizer. The smaller the flowerpot, the less soil it can hold, and the less fertilizer you need.

2. Color adjustment: Hydrangeas bloom pink flowers in alkaline soil and blue flowers in acidic soil. So if you want to adjust its color, you can use a blueing agent when the buds just emerge. Usually, just sprinkle a layer on the soil surface.

Hydrangea Fertilization Precautions

Try to water the plant once after fertilizing to avoid excessive fertilizer concentration that may burn the hydrangea roots. Do not fertilize after the weather turns cold in late autumn. At this time, try to reduce watering as much as possible.