How to grow bigleaf hydrangea? Master the cultivation techniques and precautions

Bigleaf hydrangea is a common potted flower. When it blooms, the flowers are many in color and large. Many people grow it in daily life. It has high ornamental value and is also one of people's favorite flowers. Today, the editor will tell you about bigleaf hydrangea cultivation techniques and precautions.

Bigleaf hydrangea is also known as hydrangea. After blooming, it looks like a hydrangea ball, hence the name. There are many varieties of bigleaf hydrangea with different colors. It is often used in gardening and is also grown by many people as a potted plant. If you want to grow a pot of bigleaf hydrangea well, you must first know its growth characteristics. Below, I will teach everyone the cultivation methods for bigleaf hydrangea.

Soil selection

Bigleaf hydrangea needs fertile, breathable, slightly acidic soil, so the best choice is a substrate soil made by mixing leaf mold + garden soil + river sand in a 3:1:1 ratio. Leaf mold is the soil formed when leaves and other plant matter rot and return to the earth; you can dig the surface layer under deciduous trees to get it.

Light and temperature

Bigleaf hydrangea does not like direct sunlight, and in summer especially it is easily scorched by the fierce sun, so it is best to grow it in a semi-shaded environment. Bigleaf hydrangea likes a warm environment, and its most suitable growth temperature is 18-28 degrees. Bigleaf hydrangea is not cold-tolerant; temperatures below 5 degrees may cause frost damage, so remember to take cold protection measures in winter.  Watering Bigleaf hydrangea likes moisture. In spring and summer, water once in the morning and once in the evening; in autumn, water once a day, gradually reducing it. In autumn it enters dormancy, so if you can avoid watering, do so. When watering, be careful not to let water accumulate in the pot, as it easily breeds bacteria and pests.  

Fertilizing

Bigleaf hydrangea likes fertilizer, and fertilizing can make it grow vigorously. Bigleaf hydrangea also has a relatively strong ability to absorb nutrients. During the vigorous growth period in spring and summer, apply cake fertilizer once every half month. During the bud stage, applying potassium dihydrogen phosphate as a supplementary fertilizer can make the flowers larger and more vivid. 

Precautions

Because bigleaf hydrangea likes moisture, frequent watering will gradually make the soil neutral. Every so often, you can drip a few drops of edible vinegar into the water to maintain the acidic environment of the soil.

The above are the cultivation methods and precautions for bigleaf hydrangea. I hope they are helpful to everyone. Bigleaf hydrangea is one of many flowers and plants. Its cultivation method is simple and its survival rate is high. Everyone can save the method shared by the editor.

How to grow bigleaf hydrangea: causes of yellowing leaves in bigleaf hydrangea

Bigleaf hydrangea is a beautiful flower, and many people choose it when growing flowers. Growing flowers is not that simple and also requires techniques. Below, let's look at how to grow bigleaf hydrangea and the causes of yellowing leaves in bigleaf hydrangea.

Cause 1: Iron deficiency or soil alkalization. There are many causes of yellowing leaves in bigleaf hydrangea, but the common yellowing of leaves is mostly caused by physiological iron deficiency. Because it is an acid-loving plant, if it is planted in alkaline soil or watered long-term with water or fertilizer containing more alkalinity, causing a lack of soluble iron in the soil, the leaf color gradually turns from green to yellow. After the plant is affected, the young tender leaves at the tips of the branches first show yellowing; the leaf mesophyll becomes pale yellow or yellow, but the veins remain green. As the condition develops, the entire plant's leaves become yellow-white, the leaf margins dry and scorch, and they wither and fall off on their own.

Solution: When discovered, apply 0.2% ferrous sulfate, or 0.2% potassium dihydrogen phosphate solution, or 150-250 times edible rice vinegar solution every 10-20 days (using them in rotation is best, and foliar spraying is also acceptable). After 3-4 consecutive times, the leaves can turn from yellow to green, and it can also turn alkaline soil into slightly acidic soil. You can also mix sulfur powder into the cultivation soil (mix 100-200 grams of sulfur powder into 1 cubic meter of soil); its effective period can last 2-3 years. During the spring and autumn growth periods, apply alum fertilizer water or 0.2% ferrous sulfate solution once every half month. This can prevent yellowing disease, promote lush branches and leaves, and make the leaf color dark green and bright.

Cause 2: Light too strong or insufficient. Bigleaf hydrangea is shade-tolerant and avoids direct sunlight; it grows well under scattered light. If in summer the leaves turn yellow and white and yellow-brown spots appear, it is caused by sunburn and light that is too strong.

Solution: It should be moved to a cool, ventilated place to prevent direct sunlight. At the same time, often spray clean water on the leaves or around them to increase air humidity, so most lightly damaged leaves can recover their green color. If light is insufficient, the branches become slender and leggy, the internode spacing is long, the leaves are weak, large and thin, and the leaf color turns yellow. The light duration should be increased, and it will slowly recover.

Cause 3: Improper watering. Bigleaf hydrangea likes moisture but fears waterlogging and drought. If watered too much, the inside of the potting soil lacks oxygen, causing root rot, and the leaves gradually turn yellow, become dull and lusterless, and even fall off. At this time, watering should be paused, the soil loosened and dried, and watering resumed after it dries thoroughly. After rain, promptly pour out accumulated water in the pot. If watered too little and the potting soil is too dry, the root system often cannot absorb water, the leaf tips dry up and turn yellow, and the lower leaves wither, yellow, and fall off.

Solution: At this time, first water a small amount, then after half an hour water thoroughly, and at the same time spray clean water on the branches and leaves. Therefore, bigleaf hydrangea should be watered thoroughly only after the soil dries out, and absolutely avoid half-watering (watering only halfway).

Cause 4: Excessive fertilizing or long-term lack of fertilizer. During fertilizing, if the supplementary fertilizer is too concentrated or raw fertilizer is applied, it easily causes "root burn," leading to leaves scorching yellow and falling off.

Solution: At this time, stop fertilizing and increase the amount of watering so the fertilizer flows out from the drainage holes at the bottom of the pot, or immediately repot to remove the fertilizer, then rinse the soil with clean water and replace it with new culture soil. If the soil has not been changed and fertilizer added for a long time, especially if nitrogen fertilizer is lacking, nutrient supply is insufficient and the leaves will also lose green and turn yellow. At this time, promptly replace with new fertile, loose soil containing nitrogen, and water with dilute liquid fertilizer or compound fertilizer about once every 10 days, and pay attention to promptly watering "reviving" water. Before long, the leaves will turn from yellow to green.

The above is the relevant introduction in this article. I believe after reading it you also have a simple understanding of this. If needed, you can continue to follow No. 1 Home Network to learn more information.

Hydrangea cultivation methods and matching techniques

Hydrangea does not have high sunlight requirements and is one of the plants most suitable for planting in small courtyards with poor sunlight. Planting two plants opposite each other at a building entrance, planting a row along a building, or planting a clump in a corner of the courtyard are all ideal. If the entire flower ball is cut off and placed in a vase indoors, it is also a top-grade decorative item. What are the cultivation methods for hydrangea? What are the techniques for matching hydrangea with home styles?

Hydrangea cultivation methods

During the growth period, apply decomposed alum fertilizer water once every 10-15 d (water 400-500 L, soybean cake 10-20 kg, pig manure 20-30 kg, ferrous sulfate 5-6 kg), and spray the leaves once every 15 d with 0.1% urea or 0.1%-0.2% ferrous sulfate solution. During flower bud differentiation, appropriately increase P and K fertilizers. During dormancy, stop fertilizing.

Hydrangea home style matching