Hydrangeas are some of the most beautiful flowering plants in the world. They are also easy to grow, but require a lot of care if you want them to look their best! One area where they often need more attention is fertilizing. Let’s explore what you should know about Hydrangea fertilizer and how to do it properly so that your flowers will be healthy and vibrant all season long.
What are hydrangeas and what does it need to grow best?
Hydrangeas are a plant from the Hydrangeaceae flowering plant family, with over 300 species. They are native to areas of east Asia, but also grow in temperate regions all around the world. All types of hydrangea plants thrive on acidic soil that has plenty of organic matter and suffers little disturbance (plowing). The addition of organic mulch will help to maintain a high level of acidity and moisture in the soil.
They are popular ornamental plants, grown for their large clusters of flowers that come in many colors including white, blue, pink, red, and purple. The size, shape, and color of the blooms depend on the pH level of the soil. In acidic soils, the flowers will be blue or pink. In neutral or alkaline soils, they will be white or red.
What NPK ratio choose for hydrangeas?
Hydrangeas are generally found to be more responsive with an intermediate number of available nutrients, usually in the form of Nitrogen and Phosphate. In addition, they also need Potassium (K) for healthy vibrant blooms. The optimum NPK ratio is approximately 21-7-7 or 7-3-3 because it’s balanced between nitrogen that helps foliage growth such as leaf size and plant height, phosphorus which promotes flower formation from buds; potassium which provides strength to cell walls supporting good flowering and fruit setting ability. When you put too much fertilizer for hydrangeas on your plants without enough water or sunlight, it can burn its leaves causing browning patches all over the white parts of your plant.
When and how to fertilize hydrangeas?
The best time to fertilize Hydrangeas is in early spring before new growth begins. However, you can also fertilize them in late summer or early fall, after blooming has finished.
There are many different ways to apply fertilizer to Hydrangeas: by hand, with a spreader, or through irrigation systems. You can either apply the fertilizer directly to the soil around the plants or use a foliar spray on the leaves. Choose the method that works best for you and your Hydrangeas.
Another important thing is to not over-fertilize the plant, so read and follow the instructions on your fertilizer package carefully!
Fertilizer application rates
Finally, you need to decide how much fertilizer to give your plants. The amount you need will depend on the size and age of your plants, as well as the type of fertilizer you are using. A good rule of thumb is to apply one pound of fertilizer for every 100 square feet of planting area. Be sure to read the instructions on your particular fertilizer product for more specific information.
What are the consequences of not fertilizing hydrangeas?
If you don’t fertilize your Hydrangeas, they won’t develop to their full potential. The plants may also become weak and susceptible to disease as a result of being under fertilized. It’s critical for the health and attractiveness of your Hydrangeas that you fertilize them.