Gardenia, jasmine, hydrangea... they grow so well, but they don't bloom, why?

Why doesn't gardenia bloom?

Reason 1: Excessive nitrogen fertilizer application

In order to make the gardenias in their homes grow vigorously, many flower lovers will apply a lot of nitrogen fertilizer to them. However, they don’t know that applying too much nitrogen fertilizer can easily cause the gardenias to grow too tall. The flower buds will not get nutrients and will not bloom. Even if they bloom, they will fall off immediately. Solution: When you find that gardenia is beginning to form flower buds, apply more fertilizers containing phosphorus and potassium, such as 0.2% potassium dihydrogen phosphate solution or 0.5% superphosphate solution, which is beneficial for flower bud differentiation and bud formation.
(Author: Li Gang104 Source: Gardenia Bar)

Reason 2: Alkaline soil

Gardenia prefers acidic soil. If the soil is alkaline, it will easily cause the gardenia plant to turn yellow and affect flowering. Solution: 1. In order to ensure that the soil is acidic, you can use 0.2% ferrous sulfate solution and water it into the soil of gardenia about once every half a month. 2. Mix vinegar and water in a ratio of 1:30 to make a solution, and then pour it into the flowerpot. This can also change the soil from alkaline to acidic.
(Author: Jiuyue's Plum Blossoms Bloom Source: Gardenia Bar)

Reason 3: No pruning of the plant

If there are too many messy branches on the gardenia plant, these branches will absorb nutrients, thus reducing the nutrients available for the gardenia to bloom, which will affect flowering; and too dense branches will also affect photosynthesis, and naturally it will not bloom. Solution: If you want the gardenia to bloom more, you need to prune it continuously. Both daily branch pruning and pruning after flowering are very important. 1. Prune diseased branches, weak branches, and overcrowded branches. Gardenias usually bloom at the top. If there are too many useless branches, it is easy for nutrients to be consumed and the flowers will not bloom. 2. Prune after flowering. After the gardenia blooms, the remaining flowers should be trimmed off in time. Don't just remove the flowers, you can cut them off from the second node below the flowers to reduce unnecessary nutrient consumption.

Why doesn't bougainvillea bloom?

Reason 1: Insufficient light

Bougainvillea is a light-loving plant and requires sufficient light during its growing period. If you place Bougainvillea in a place where sunlight cannot reach it for a long time, or the light is too weak, the photosynthesis of Bougainvillea can only be used to supply growth and of course it will not bloom. Solution: You can place the bougainvillea on a south balcony or south windowsill where it receives plenty of light. If conditions permit, it is best to place it in a well-lit place outdoors. The more the bougainvillea is exposed to the sun, the more flowers it will bloom.
(Author: Google Sweetie Source: Bougainvillea Bar)

Reason 2: Overwatering

If you want your bougainvillea to bloom more and last longer, you must control the water before it blooms. Because if you water too much, it will inhibit the differentiation of flower buds and prevent the bougainvillea from blooming. Solution: 1. If you want Bougainvillea to bloom more, you need to control the water. It is generally recommended to control water about three weeks before flowering. Start by not watering the bougainvillea and let it wither due to lack of water. Then give it half the normal amount of water, or spray some water on the plant to ensure that it wilts half a day and does not wilt half a day. 2. After three weeks of water control, water thoroughly once, then loosen the soil, and apply 0.2% potassium dihydrogen phosphate solution about once a week to promote the growth of flower buds. In order to make the flowers concentrated and the plant compact, you can use 0.2‰ paclobutrazol once when you resume watering.
(Author: A diver who is afraid of water Source: Bougainvillea Bar)

Reason 3: The branches are not pruned

If bougainvillea is not pruned for a long time, some of the overly dense branches on the plant will consume nutrients, providing insufficient nutrients for flowering, and the plant will not bloom. Solution: If you want to make bougainvillea bloom, you have to cut off some useless old branches, weak branches, and diseased branches on the plant to reduce nutrient consumption. Before pruning:
After pruning:

Why won't hydrangea bloom?

Reason 1: Too long exposure time

Hydrangea is a short-day plant. If the sunlight is more than 10 hours a day when the flower buds are differentiating, it will definitely not bloom. Solution: If you want hydrangeas to bloom, you must ensure that they are in darkness for 10 hours a day during the period of flower bud differentiation. Especially for hydrangeas placed indoors, you must avoid long-term light exposure at night, otherwise it will affect the differentiation of flower buds.
(Author: crusadtt Source: Hydrangea Bar)

Reason 2: Improper fertilization

Hydrangeas require more fertilizers during the growing period, especially nitrogen fertilizers, which can promote plant growth. However, if excessive nitrogen fertilizers are applied during the flower bud differentiation period, it will cause the plants to grow too tall, the flower buds cannot differentiate, and it will be impossible to bloom. Solution: During the flower bud differentiation period of hydrangea, it is necessary to reduce the content of nitrogen fertilizer and apply more fertilizers containing phosphorus and potassium. You can use 0.2% potassium dihydrogen phosphate solution to irrigate the roots or spray it on the plants.
(Author: Follow your heart, Source: Hydrangea Bar)

Reason 3: Improper pruning

If vigorous hydrangeas are heavily pruned in the spring, it will be difficult for flower buds to form in June-August, resulting in reduced or no flowering. Solution: 1. First pruning. Carry out the first pruning when the hydrangea is in the seedling stage, leaving only 2-3 pairs of leaves at the bottom and cutting off all the upper ones. In about 1-2 months, the seedlings will grow 2-4 new branches. 2. Pruning after flowering: When hydrangeas are in bloom, nutrients are basically concentrated on the flowers. In order to promote the differentiation of new flower buds, the remaining flowers of hydrangeas that have bloomed should be cut off in time. When pruning, don't just cut off the dead flowers, but also cut off the branches that have bloomed, leaving only a pair of leaves at the bottom.

Why doesn't jasmine bloom?

Reason 1: Insufficient light

Jasmine loves sunlight and is therefore known as the "jasmine that can't be killed by the sun." If there is insufficient light, the leaves will become smaller and the green color will fade, the growth and development will be poor, the flower buds will not be able to be produced, and the plant will not bloom. Solution: It is best to place jasmine in the courtyard to receive sufficient light. If these conditions are not met, you can place it on the south balcony or south windowsill to allow it to see more sunlight to promote the germination and differentiation of flower buds.
(Author: Yueying Youzhu Source: Jasmine Bar)

Reason 2: Insufficient fertilizer

Jasmine is in full bloom in the summer. If the fertilizer supply is insufficient, it will easily affect the differentiation of flower buds and naturally stop blooming. Solution: 1. Apply decomposed liquid fertilizer every 3-5 days. Liquid fertilizer can be homemade bean cake fertilizer, Chinese medicine residue fertilizer, etc. 2. During the bud formation and flowering period of jasmine, apply organic fertilizer mainly composed of phosphorus about once every three days. It can be made with bone meal, or sprayed with 0.2% potassium dihydrogen phosphate solution. This will make the jasmine bloom more and have a stronger fragrance.
(Author: Bohai Yellow Croaker Source: Jasmine Bar)

Reason 3: Improper pruning

Jasmine needs to be pruned regularly, whether it is those branches that are too dense or those branches after flowering, they must be cut off in time to reduce nutrient consumption so that nutrients can be supplemented for flower bud differentiation, thereby promoting flowering. Solution: 1. Jasmine flowers only open at the top, so some of the long branches and blind branches that grow on jasmine should be pruned off in time, so that jasmine can sprout more side branches and thus bloom more flowers. 2. Pruning after flowering: After jasmine blooms, the remaining flowers must be cut off, otherwise it will cause unnecessary nutrient consumption. You can cut off the flowering branches, leaving only 1-2 pairs of leaves.
(Author: Dear Mr. Wang Xinxin Source: Gardenia Bar)

Why doesn't the blue snow flower?

Reason 1: Insufficient light

Blue snow flowers like strong sunlight. If there is insufficient light, the plant will not be able to carry out photosynthesis, and there will not be enough nutrients to provide the plant with flowering. Solution: Blue snow flower plants like sunlight and are slightly shade-tolerant. They can be placed on a south balcony or an east or west balcony with sufficient sunlight. Pay attention to shading during the summer noon.
(Author: Gold Coast Xiaoxue Source: Blue Snowflake Bar)

Reason 2: Lack of watering

In summer, blue snow is in its growth period. If it is watered too little, it will easily lead to the plant's poor development due to lack of water and thus fail to bloom. Solution: Blue snow flower needs a lot of watering during the growing period. The evaporation is large in summer, so it can be watered once 1-2 days. Normally, water should be sprayed on the leaves and around the flowerpot in the morning and evening to maintain a high air humidity.
(Author: Flowers bloom in the snow Source: Blue Snowflake Bar)

Reason 3: Not pruning after flowering

Blue Snow blooms in large quantities. If it is not pruned in time after flowering, it will lead to unnecessary nutrient consumption, and it will be unknown when it will bloom next time. Solution: After flowering, cut off the remaining flowers of the blue snow. It will bloom again after about 20-30 days. Blue snow is not afraid of pruning. The more it is pruned, the faster it grows.

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