Bougainvillea Cultivation Methods and Pruning Timing

Bougainvillea is a vine-like shrub in the Nyctaginaceae family, genus Bougainvillea, with oblong or elliptical flowers in purple or magenta; the flower colors are vivid and the blooming period is long, and many people like to grow a pot at home. So, how do you cultivate bougainvillea? The following is an introduction to bougainvillea cultivation methods

1. A brief introduction to bougainvillea!

1. Where does bougainvillea originate?

Bougainvillea is also called paperflower, three-leaf bougainvillea, hairy bougainvillea, le, triangle flower, purple triangle, purple yalan, and so on. It is native to Brazil. It is now not only widely distributed in southern China, but can also be cultivated in the cold north. In the south it is planted in courtyards and parks, while in the north it is cultivated in greenhouses.

2. When is the blooming period of bougainvillea?

Bougainvillea generally blooms in winter and spring, from November to December until April of the following year. In northern greenhouse cultivation, it generally blooms from March to July. The blooming period is generally as long as 4 months, and with proper care, it can bloom continuously all year round.

2. Introduction to bougainvillea cultivation methods!

1. Soil: choose sandy soil.

Bougainvillea is not strict about soil requirements, but it is not tolerant of waterlogging and is also afraid of standing water. Therefore, it should be grown in fertile, loose, well-drained sandy soil. Clay-heavy, alkaline, low-lying, and easily waterlogged soil should not be chosen. You can mix leaf mold, garden soil, and sand in a 4:4:2 ratio to make potting soil, or mix leaf mold, garden soil, decomposed manure, sawdust, and river sand in a 4:2:1:1:2 ratio to make potting soil.

2. Propagation: cutting propagation is commonly used.

Bougainvillea is a vine and is easy to propagate. Cutting propagation is commonly used, and it can be done in early spring or late autumn. Cut a mature woody branch 20 cm long and insert it into the soil; it will root in one month and grow branches and leaves, and after two years of cultivation it can bloom.

3. Daily management

(1) Temperature: the suitable growth temperature for bougainvillea is 15-30°C. In summer it can tolerate a high temperature of 35°C, but it must not exceed 35°C, otherwise appropriate measures such as shading, spraying water, or ventilation should be taken. In winter it can tolerate a low temperature of 5°C, but it must not fall below 5°C, otherwise it is prone to frost damage and leaf drop.

(2) Light: bougainvillea is a sun-loving flower and needs sufficient light during the growing period. Insufficient light will cause the plant to weaken, affect bud formation and blooming, and also cause a large number of leaves to drop. Except for newly potted seedlings, which should be placed in semi-shade, ensure 8-9 hours of light every day.

(3) Watering: bougainvillea is not tolerant of waterlogging and is also afraid of standing water. Usually, watering should follow the principle of “do not water until dry, and water thoroughly when watering.” However, before blooming, water control must be carried out. Each watering should wait until the potting soil is dry and the branches and leaves are soft and drooping. After half a month, resume normal watering.

(4) Fertilizing: bougainvillea must be given sufficient nutrients during the growing period. During the bud stage, apply a phosphorus-based fertilizer once every 10 days; during the blooming period, apply a phosphorus-based fertilizer once every 15 days, and apply one additional fertilizer after blooming; at other times, apply liquid fertilizer once every 7-10 days; never fertilize during the water-control period, so as to avoid fertilizer burning the roots.

(5) Loosening the soil & repotting: bougainvillea should be loosened regularly, otherwise the potting soil will compact and retain water, easily causing root rot or poor growth; moreover, bougainvillea grows quickly, has a well-developed root system, and has very many fibrous roots, so it needs to be repotted once a year.

(6) Pest and disease control: common diseases of bougainvillea include shoot blight, and common pests include leaf beetles and aphids. Usually, prevention can be done by strengthening soil loosening and weeding, removing dead branches and diseased leaves, and frequently ventilating. If disease is found, spraying can be used for control.

3. When should bougainvillea be pruned?

Bougainvillea grows quickly. In order to keep it attractive, promote side branch growth, and encourage more blooming, it should be pruned in a timely manner or regularly. When is the best time to prune?

1. Spring pruning: every spring, cut off overly dense branches, dry branches, diseased and weak branches, crossing branches, and so on, to encourage new branches.

2. Growing-season pruning: during the growing season, pinch back promptly to encourage side branches, help flower bud formation, and promote abundant blooming.

3. Post-bloom pruning: after leaf drop and flower drop during the blooming period, promptly remove spent flowers and fallen leaves to reduce nutrient consumption and keep it fresh and attractive; also thin out overly dense branches, inner branches, leggy branches, and weak branches.

The above is an introduction to bougainvillea cultivation methods. Generally speaking, it can be pruned all year round, and it needs to be pruned about 1-3 times a year. Do not prune too much or prune excessively, so as to avoid affecting the normal growth of bougainvillea.