Detailed Explanation of Bougainvillea Planting Methods and Technical Key Points

For planting bougainvillea, use loose and fertile slightly acidic soil. Keep the temperature between 15-20 degrees, with no less than 8 hours of light per day. Keep the soil moist, but not waterlogged; fertilize reasonably, but do not apply concentrated or raw fertilizer. Stop fertilizing when the plant grows slowly or is dormant. Prune 1-3 times per year to keep the plant looking attractive.

1. Soil: Use loose and fertile slightly acidic soil. You can use 1 part each of leaf mold, peat soil, sandy soil, and garden soil, and add a small amount of decomposed cake residue to mix into a potting soil; you can also use 4 parts humus soil, 4 parts garden soil, and 2 parts sand to prepare the potting soil.

2. Temperature: The suitable growth temperature is 15-20 degrees Celsius. In summer it can tolerate high temperatures of 35 degrees Celsius, and in winter it should be kept no lower than 5 degrees Celsius to avoid frost damage and leaf drop.

3. Light: Except that newly potted seedlings should first be placed in a semi-shaded spot, in winter the light duration must not be less than 8 hours. In other seasons, control the daily light duration to about 9 hours, so that insufficient light does not affect bud formation and flowering.

4. Watering: In summer, water once each morning and evening; in spring and autumn, water once a day; in winter, control watering, do not water if the potting soil is not dry, and when watering, water thoroughly; watering must not cause waterlogging, to avoid root rot. Also frequently sprinkle water on the leaves and surroundings to increase air humidity.

5. Fertilizing: During the growth period, fertilize appropriately to ensure sufficient nutrients. From April to July, apply liquid fertilizer once every 7-10 days. The fertilizer can be 10%-20% decomposed soybean cake, rapeseed cake water, or human waste water, etc.; starting in August, apply fertilizer once every 10 days, mainly phosphorus fertilizer, and you can use 20% decomposed chicken, duck, and pigeon manure and fish scraps, etc. as liquid fertilizer; from October to mid-November, apply fertilizer once every half month, mainly phosphorus fertilizer, with a fertilizer-water concentration of 30%-40%; afterward, after each flowering, apply an additional topdressing once. Do not apply concentrated or raw fertilizer, to prevent root damage. Stop fertilizing when the plant grows slowly or is dormant, to avoid fertilizer damage.

6. Pruning: Shape and prune, generally 1-3 times. After each flowering, promptly remove spent flowers; after the flowering period, thin out overly dense branches, inner branches, leggy branches, and weak branches.