When does bougainvillea sprout?
As a common ornamental plant in the courtyard, Bougainvillea is deeply loved for its gorgeous color and strong vitality. Every spring, what flower friends care about most is the germination of the new green on the branches. Mastering the correct germination rules and maintenance skills can allow this tropical beauty to show more vigorous vitality. Climate differences affect the germination time of bougainvillea. In most areas of our country, bougainvillea usually germinate new buds from March to April. Due to the warmth of winter in South China, buds and broken branches can be seen in early March, while the Yangtze River Basin needs to wait until around the Qingming Festival. When the temperature stabilizes above 15℃ for 7 consecutive days, the plant will start its germination mechanism. If you encounter freezing damage in winter, a continuous temperature above 20 ° C is needed to awaken dormant buds. Temperature fluctuations delay growth, which is common in early spring, and can cause germinating buds to stop developing. Experimental data shows that when the temperature difference between day and night exceeds 10 ° C, the growth rate of new buds will slow down by 40%. Therefore, it is recommended to take night bagging and insulation measures before the temperature is completely stable. Maintenance points to promote germination accurately regulate the growth environment. The ideal maintenance temperature should be controlled between 18-28℃, and in winter it should be ensured to be no lower than 5℃. Use a thermohygrometer to monitor in real time. When the air humidity is lower than 50%, the local humidity can be increased by spraying. Take special care to avoid placing plants next to air conditioning outlets or radiators. Scientific implementation of water management adopts the watering principle of "see dry, see wet" during the germination period, and the topsoil is watered thoroughly when it is 2 centimeters dry. It is recommended to use the bamboo stick test method: Insert the bamboo stick into the pot soil for 5 minutes and then remove it. If there is only slight moisture at the bottom, you can water it. Combined application of phosphorus and potassium fertilizer solution diluted 1000 times per month can significantly increase the germination rate. Light control techniques ensure more than 6 hours of scattered light per day, preferably facing south balcony or east window sill. In case of continuous rainy weather, use plant fill light at intervals for 2-3 hours. Pay attention to avoid direct strong light after new shoots sprout. Use a sunshade net to filter 30% of the light for the best effect.
Through systematic temperature management and refined maintenance, even plants that have suffered freezing damage can be revitalized. It is recommended to regularly check the status of branches and replenish trace elements in time when buds are found to be swollen to accumulate energy for subsequent flowering. Mastering the essence of these maintenance will surely make the branches of bougainvillea full of spring every year.