Why does bougainvillea never bloom? How can I make it bloom?

Bougainvillea is loved by people for its gorgeous and colorful flowers, but many people encounter the problem of flowers drying up when growing bougainvillea. So why does bougainvillea never bloom? How can we make bougainvillea bloom? The following editor will explain them one by one, hoping to help you.

Why does bougainvillea not bloom?

1. Only leaves grow without flowers

The bougainvillea grows well, with dark green leaves, but it does not bloom. This is obviously a sign that it is only growing for nutrition and not for reproduction. The key reason is that the nutrients are too rich, meaning the soil is too fertile.

2. Lack of sunlight

All flowering plants need sunlight, so it is recommended to move the bougainvillea out to bask in the sun and then top and prune it appropriately.

3. Malnutrition

If you see that the leaves of Bougainvillea are yellow and thin, and the branches are thin and weak, it means that the plant is lacking in nutrition. You should remove the leaves and thin out the branches, and then supply nutrition.

4. Prune frequently

I often see many people who grow bougainvilleas and let them grow naturally. They used to have flowers all year round, but this year, not a single flower bloomed. Why? Because too much nutrients are lost, and there are too many ineffective branches, which rob the flower buds of nutrients. Therefore, they need to be pruned frequently, especially in winter. Prune a lot during dormancy to ensure that the branches are shaped and have space for the branches to bask in the sun.

How to make bougainvillea bloom

Nutrients

During the growth period of Bougainvillea, nutrients are mainly supplemented with nitrogen-based farmyard manure, supplemented by "phosphorus and potassium" compound fertilizers. Nitrogen promotes luxuriant branches and leaves, phosphorus promotes root growth, and balances nutrient growth and reproductive growth. Bougainvillea is flowered.

environment

There is no need to shade Bougainvillea, full sun is the best environment. Bougainvillea will bloom less or not at all when it receives less than 6 hours of sunlight per day, so Bougainvillea should be maintained in full sun.

Pot soil

The health of bougainvillea is the foundation for the tree to be full of flowers in the future. When planting bougainvillea, the best potting soil is loose, breathable, and slightly acidic soil without water accumulation. We can use a mixture of one-third of farmland soil, humus soil, and red brick slag as potting soil. Such a mixed soil can maximize the advantages of each soil.

Water control to promote flowering

If you have grown a healthy bougainvillea but the flowers are not in full bloom, you need to use "water control and flower control". When the temperature is still around 25 degrees, give the bougainvillea a pruning, mainly pruning off the overly long branches, cross branches, whorled branches, and weak branches. Then when watering the bougainvillea, extend the drying time of the potting soil until the leaves of the bougainvillea lose their luster, wilt and droop, then give it a thorough watering, and after controlling the water twice, dilute "potassium dihydrogen phosphate" with water about 1000 times, and irrigate the flower soil about twice. Then continue to control the water, repeat the water control 5 to 7 times, and the new buds of the bougainvillea will grow, which means the leaves of the bougainvillea will bloom.

How to deal with aphids on bougainvillea

The first situation is that there are few aphids on the branches. You can clean them directly with a toothbrush. However, it is best to cut off the places where aphids grow to avoid spreading the disease. This method is only suitable when there are few aphids.

In the second case, when there are more aphids, you can rub two handfuls of soapy water and soak cigarette butts together for a day, make a smoke-reducing water solution and spray it on the branches. This is more effective and relatively environmentally friendly.