What is the reason why bougainvillea never blooms? 1, bougainvillea grows well, its leaves are long and dark green, but it doesn't bloom. This is obviously just vegetative growth without reproductive growth. The key reason is that the nutrition is too rich, that is, the soil is too fat.
2. There is not enough sunshine. All flowering plants need sunshine. It is suggested that bougainvillea be moved out to bask in the sun, and then trimmed properly.
3. Undernutrition If you see the leaves of bougainvillea are sallow and emaciated, and the branches are thin, it is undernutrition. Knock off leaves and twigs, and then supply nutrition.
4. Prune frequently. It is often seen that many bougainvillea growers let them grow naturally. Originally, all the branches were in full bloom all year round, but this year, none of them opened. Why? Because too many nutrients are lost and too many ineffective branches rob the nutrients of flower buds, they should be pruned frequently, especially when they are dormant in winter, to ensure that there are enough modeling branches and branches can be cut out in the sun.
How can I make bougainvillea bloom? During the growth period of bougainvillea, nitrogen-based farmyard manure is the main nutrient supplement, supplemented by "phosphorus and potassium" compound fertilizer. Nitrogen promotes leaf growth, while phosphorus promotes root growth, balancing vegetative growth and reproductive growth. Forcing bougainvillea to blossom.
Environmental protection bougainvillea does not need shade, and full sunshine is the best environment. Bougainvillea will spend less and not bloom when the sunshine is less than 6 hours a day, so bougainvillea should be maintained in a place with plenty of sunshine.
The health of potted bougainvillea bougainvillea is the foundation of full trees and flowers in the future. When planting bougainvillea bougainvillea, the best potted soil is loose, breathable and slightly acidic soil without water accumulation. We can use pastoral soil, humus soil and red brick residue in a proportion of one third as basin soil. This kind of mixed soil can maximize the advantages and avoid disadvantages, and give full play to all the advantages of soil.
Controlling water and forcing flowers to cultivate a strong bougainvillea, but it can't make bloom flowers, so it is necessary to use "controlling water and controlling flowers". When the temperature is still around 25 degrees, prune bougainvillea once, mainly pruning long branches and weak branches. Then, when watering bougainvillea, extend the drying time of the basin soil until the leaves of bougainvillea lose luster and droop, water it once, control the water twice, dilute it with "potassium dihydrogen phosphate" by about 1000 times, and irrigate the flower soil twice. Then continue to control the water, repeatedly control the water for 5 to 7 times, and the new buds of bougainvillea will grow, which is the leaves of bougainvillea.
How to deal with bougainvillea aphids The first situation is that the number of aphids on the branches is small, so clean them directly with a toothbrush, but it is best to cut off the place where aphids grow to avoid spreading. This method is only suitable for use in the case of few aphids.
In the second case, when there are many aphids, you can use cigarette butts to soak two handfuls of soapy water for one day to make a spray with less smoke and water, which is more effective and relatively environmentally friendly.