How to Propagate the Sensitive Plant Mimosa
This sensitive plant, which closes upon touch, has captivated countless plant enthusiasts with its unique stress response. As a perennial herb, Mimosa holds a special place in home gardening, with growth characteristics significantly different from conventional green plants.
Key Propagation and Cultivation Steps
Seed Sowing Timing
The best sowing period is from the Beginning of Spring to Guyu (Grain Rain), with recommendations for greenhouse seedling in mid-March in the northern regions. Seeds should be soaked in 45°C warm water for 6 hours to break dormancy, and the sowing depth should be controlled within 0.5 centimeters, as excessive soil covering can lead to failed germination.
Substrate Formula Optimization
Use a golden ratio substrate: 20% humus soil for organic matter, 30% garden soil for structural stability, and 50% sifted river sand for breathability. Add 5 grams of bone meal per liter of substrate as a base fertilizer to enhance the resistance of seedlings.
Biological Characteristics of Flowering
Flower Structure Analysis
The umbel inflorescence consists of 50-80 miniature flowers, with filaments about 2.5 centimeters long and stamens displaying a unique light purple gradient. Successful pollination results in flat, round pods containing 3-5 seeds each.
Photoperiod Regulation
Ensure 6 hours of direct sunlight daily, as low light intensity below 8000Lux can lead to bud drop. During the flowering period, appropriately apply phosphorus-potassium fertilizer (N-P-K=5-15-30) at a concentration of 0.1% solution,喷施 once a week.
Full Cycle Management Techniques
Temperature and Humidity Control
Maintain a daytime temperature of 25-30°C and a nighttime temperature not lower than 18°C during the growing period. Keep the air humidity at 60-75%, using bottom irrigation to avoid water droplets on the leaves that could cause diseases.
Root Protection Strategies
Strictly control the transplanting window to when the seedlings have 3-4 true leaves, and transplant with soil balls to retain over 95% of the fibrous roots. Once the roots of mature plants lignify, the survival rate of transplantation will drop to below 30%.
Mastering these key growth patterns allows even gardening beginners to successfully cultivate Mimosa. Regularly observe the plant's condition and adjust the care plan in a timely manner to keep this sensitive plant displaying its unique biological characteristics, adding natural fun to the living space.