How to Make the Kalanchoe Blossom with Long Flower Buds
As a popular winter ornamental plant, kalanchoe is loved for its colorful and long-lasting flowers. However, many plant enthusiasts find that the plants grow vigorously but fail to produce flower buds. Actually, by mastering the following care secrets, one can effectively promote the differentiation of flower buds, making the kalanchoe burst with full branches of flower buds.
Techniques for Water and Fertilizer Management
Scientific Water Control to Promote Differentiation
As a succulent plant, kalanchoe's fleshy stems and leaves can store a large amount of water. During the growing season in spring and autumn, it is best to maintain 70% soil humidity. When watering every 2-3 days, the following steps should be taken: 1. Use the immersion method to ensure thorough watering. 2. Place ceramic stones at the bottom of the pot to prevent waterlogging. 3. Avoid watering during the high-temperature period at noon. In winter, when temperatures are low, the interval can be extended to once every 5-7 days.
Accurate Fertilization Plan
During the growing period (March to June), use a balanced NPK fertilizer (20-20-20), diluted 2000 times, and watered every half month. After August, when the flower bud differentiation period begins, switch to a high-phosphorus and potassium fertilizer (10-30-20). Combined with foliar application of potassium dihydrogen phosphate (1:1000), this can significantly increase the number of flower buds.
Plant Shape Adjustment
Three-Step Pruning Method
① Pinch the tips during the seedling stage: When the plant reaches 15cm in height, leave 3 pairs of leaves and remove the top. ② Prune after flowering: Make an oblique cut 2cm from the base of the flower stem. ③ Regularly thin branches: Remove inner and crossed branches to maintain ventilation.
Light and Temperature Control Strategies
Photoperiod Control
As a typical short-day plant, it is recommended to: • Provide 8 hours of direct sunlight starting in September. • Cover with a black plastic bag after 5 PM. • Maintain a day and night temperature difference of 8-10℃ for better results.
By managing water and fertilizer, pruning, and adjusting light and temperature, combined with a loose and breathable peat perlite substrate (proportion 3:1), flower buds can be seen to sprout in about 40 days. During the full bloom period, reduce the watering frequency to extend the viewing period to over 120 days.