Crassula propagation techniques in summer, Crassula cutting method

How to propagate蟹爪兰 in summer

As a颜值担当 among succulent plants, the summer propagation of 蟹爪兰 has always been a focus for gardening enthusiasts. Although the high temperature environment poses challenges to reproduction, a survival rate of over 95% can still be achieved with scientific methods. This article will provide a comprehensive analysis of practical experience in summer propagation, from substrate selection to maintenance techniques.

Core Steps for Propagating 蟹爪兰 in Summer

1. Cutting Selection and Treatment

Select two-year-old healthy mother plants and cut 3-7 deep green mature stem sections. Notes: ① Avoid the top tender buds and the basal aging stems ② Retain complete growth nodes ③ Use a 45-degree oblique cut with scissors disinfected with alcohol. It is recommended to use a double insurance plan during treatment: first soak in carbendazim for 20 minutes to sterilize, then after the cut surface is semi-dry, apply a rooting powder containing indole acetic acid.

2. Substrate Preparation and Disinfection

It is recommended to use a golden ratio of Perlite: Vermiculite: Coconut bran = 3:2:1 to ensure a porosity of over 60%. After disinfecting in a microwave oven at high temperature for 3 minutes, add 5% rice husk charcoal to adjust the pH to 6.0-6.5. Special note: Common garden soil is prone to compaction, which can directly lead to root rot.

3. Scientific Propagation Techniques

Use shallow insertion, with the depth of soil insertion not exceeding 2 stem sections. Maintain a 5cm spacing between each hole, and gently press the substrate to ensure close contact after insertion. Key technique: Place a 0.5cm thick layer of sphagnum moss on the surface of the propagation substrate to effectively maintain the humidity of the microenvironment.

Special Maintenance Points in Summer

1. Accurate Temperature and Humidity Control

How to Propagate 蟹爪兰 in Summer

Set up a double-layer shade net to maintain an environmental temperature of 28-32℃. Use an ultrasonic humidifier to stabilize the air humidity at 75%±5%, combined with foliar misting twice a day, morning and evening.

2. Disease Prevention System

Alternate the use of benzoxazole and pyraclostrobin weekly for prevention, and immediately apply thiophanate-methyl to the roots if the stem sections become soft. Special note: Avoid applying any nitrogen-containing fertilizers in summer.

Through the above systematic operations, the 蟹爪兰 propagated in summer can not only root within 7-10 days but also develop a complete root system within 45 days. Compared to propagation in spring and autumn, the resistance of the summer propagation seedlings is increased by 30%, and the flowering quantity increases by 20% the following year. It is recommended to combine with the hydroponic root promotion method to increase the success rate to a new level.