How to propagate roses through cuttings easily
As the queen of flowers, rose propagation through cuttings is the most commonly used cultivation method by gardening enthusiasts. However, beginners often face the problems of stem rot and poor root development. This article will systematically analyze the full process of rose cutting from six practical points to help you easily cultivate new plants.
One, seize the golden opportunity
1.1 Season selection
April to May, when the spring shoots are lignified, and September to October, when it's cool in autumn, with temperatures stable between 18-25°C, are the best periods for cutting. At this time, the branches are vigorous and the cuts heal quickly.
1.2 Special treatment
In winter, indoor cutting needs to maintain a constant temperature of over 15°C, and in summer, the water culture method is recommended for root promotion during high temperatures.补充光 is needed for special season cuttings.
Two, create an ideal substrate
2.1 Substrate formula
The golden ratio is garden soil: decomposed leaf soil: perlite = 3:5:2, where perlite can be replaced with vermiculite or river sand. A loose and breathable structure can effectively prevent root rot.
2.2 Sterilization treatment
Soak the substrate with carbendazim 800 times solution before cutting, or use high-temperature steam sterilization for 30 minutes to thoroughly kill soil-borne pathogens.
Three, techniques for branch processing
3.1 Branch selection criteria
Select semi-lignified branches from the current year, about the thickness of a pencil, with 3-4 leaf nodes. Retain 2 compound leaves at the top for photosynthesis.
3.2 Root promotion treatment
Make a 45-degree oblique cut to increase the water absorption area, and soak in willow extract (containing natural salicylic acid) or 1000ppm naphthylacetic acid solution for 10 minutes.
Four, intelligent humidity control and maintenance
4.1 Environmental control
Keep 85% air humidity after bagging, and ventilate for 1 hour each in the morning and evening. Use a thermometer and hygrometer to monitor in real-time to avoid mold growth.
4.2 Water management
Use the immersion pot method to replenish water, and add water when the surface of the substrate turns white. During the rooting period, you can water with HB101 plant vigor every two weeks.
By precisely controlling temperature and humidity, scientifically formulating the substrate, properly promoting root growth, and combined with patient care, white new roots can be seen after 40-60 days. When the new buds have 3 true leaves, they can be transplanted. Mastering these key technical points allows every rose cutting to rejuvenate.