Detailed Explanation of the Key Points of Golden Privet Cutting Propagation Techniques

Golden privet's golden leaf color and its pruning tolerance make it widely used in landscaping. To propagate golden privet rapidly in large quantities, improving its cutting survival rate is crucial. We now share our years of cutting experience for everyone's reference.

Use two-year-old new shoots of golden privet, preferably the lignified portion, cut into cuttings about 15 cm long, remove all the lower leaves, keep only 2 to 3 leaves at the top, make a flat cut at the upper cut 1 cm from the upper bud, and make a slanted cut at the lower cut on the back side of the bud into a horseshoe shape. Use coarse sandy soil as the cutting medium, disinfect with 0.5% potassium permanganate solution for 1 day before use for cuttings. Before inserting the cuttings, first make holes with a wooden stick slightly thicker than the cuttings, press lightly after inserting, and the planting density should be such that the leaves do not touch each other and are evenly distributed. Spray thoroughly with clean water, then cover with plastic film, press down half of it firmly with soil, press the rest tightly with bricks so that watering is convenient, then shade with reed curtains. Before rooting, spray water twice a day, from 10:00 to 11:00 in the morning and from 13:00 to 14:00 in the afternoon, to cool down and retain moisture, maintaining the temperature inside the shed at 20°C to 30°C and the relative humidity above 95%. Ventilate appropriately at noon every day. In summer, to prevent rot, spray 800-fold carbendazim 3 days after insertion, and spray once more after 10 days. About 21 days after insertion, ventilate slightly at both ends for 2 days, then remove the plastic film in the morning and evening, shade with reed curtains at noon, and pay attention to spraying more water. After 3 days, remove it all. After hardening off for 4 to 5 days, transplant on a cloudy day or in the evening. Water thoroughly once immediately after planting, and water once more after 3 days. The survival rate can reach 100%. In winter, it is necessary to cover with a small arch shed to overwinter.

It is important to note that the cutting survival rate has a great relationship with the cutting medium, the concentration of rooting powder, the degree of lignification of the cuttings, and the cutting time: using coarse sandy soil as the cutting medium gives a higher rooting rate than using fine sandy soil, dipping in a one-thousandth solution of rooting powder gives a higher rooting rate than lower concentrations, lignified cuttings give a higher rooting rate than semi-lignified ones, and summer cuttings give a higher rooting rate than autumn cuttings.