How to propagate osmanthus
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Osmanthus branches are best cut between May and June, and can also take root in winter between August and September; at a temperature of 25-28 degrees, the current year's branches are semi-lignified; humidity is 80%, and phosphorus and potassium fertilizers should be sprayed after 10 days. Sprouts will emerge 30 days after taking root.
The key to taking root is temperature, which is the basis for taking root. The season from May to June is mostly good for taking root and sprouting. It should be semi-woody new branches of the current year, which root quickly. Old branches are good, but they root slowly and have a low survival rate. Cut the branches into 10cm, the lower end into a horseshoe shape, leaving 2-3 buds and half a leaf at the top. Cut the leaves in half to reduce the transpiration of the branches and absorb photosynthesis to take root.
The cutting medium can be perlite and river sand, which can also be slightly acidic. But the volatilization of perlite will soon cover moisture retention. Soak the lotus roots for 5-10 minutes before planting, dry 2/3, and after planting, pour water thoroughly and cover with a moisture-retaining film.
After 10 days, spray 0.2% phosphorus acid once on the leaves, and roots can be formed in about 1 month. A reminder: it is best to disinfect the cutting base with a 0.1% potassium permanganate solution to prevent black stems and falling leaves.
The above is a detailed introduction to how to propagate osmanthus and the best time and methods for osmanthus cutting. Have you understood?