Grafting technique of Osmanthus fragrans

Tassel is a deciduous shrub or small tree, flowering from April to June and fruit ripening from September to October. The requirements of soil are not strict, neutral, slightly acidic, slightly alkaline can adapt. The sweet-scented osmanthus grafted with tassel has strong affinity and grows well. The sweet-scented osmanthus bonsai cultivated by tassel stump can be placed at home, and the time of grafting is usually when tassel sprouts.

Splicing method

When grafting, cut off in the appropriate part of the rootstock, choose the smoother side of the bark, slightly cut down vertically with xylem, and the cut is 2 cm to 3 cm deep. The scion is cut into an oblique cutting surface of 2 to 3 cm long, and then cut into a short cutting surface of 1 cm on the reverse side, while retaining 2 to 3 pairs of buds and cutting branches across. Immediately insert the scion into the rootstock so that the two cambium are closely combined.

For large rootstocks, several more scions can be grafted. Immediately after insertion, the scions are tied and fixed with plastic film strips, and at the same time, they are covered with small plastic bags for moisturizing and heat preservation.

Abdominal connection method

Ventral grafting is a branch grafting method without cutting the rootstock crown, which is cut obliquely into the rootstock at an oblique angle of 20 to 30 degrees at the appropriate part of the rootstock, up to the diameter of the rootstock. Then cut each side of the lower end of the scion into oblique cutting surfaces of 1 cm to 2 cm, retain 2 to 3 pairs of buds, insert the scion into the knife edge of the rootstock, aim at the cambium on one side of the rootstock, bind it with plastic film strips, moisturize and keep warm.

Split-joint method

When grafting, cut the rootstock into a plane at a certain height, then split it vertically down the center of the rootstock section with a cleavage knife, with a depth of 4 cm to 5 cm, and then insert the incision with the back of the knife to make it open. The scion selected 2-year-old branches with 4 to 5 pairs of buds, cut its two sides into equal wedges, then inserted the scion into the rootstock incision to make the two cambium closely combined, and tied firmly with plastic film strips, at the same time covered with plastic bags and fastened, moisturizing, heat preservation.

Skin grafting

When the tassel sap has begun to flow and the bark is easy to peel off. First cut a 2 cm to 3 cm long slope at 1 cm to 2 cm on the back of the scion bud, and then cut a small slope about 0.6 cm long at the back tip of the slope. Then cut and cut flat where the rootstock needs, and then select the smooth bark of the rootstock to cut vertically from top to bottom, deep to the xylem, about 1.5 cm long, gently pick the cortex along the incision to both sides and insert the scion.

For example, several scions can be grafted when the rootstock is thick. After the scion is inserted, it is tied and fixed with a plastic film strip, and then covered with a plastic bag for heat preservation and moisturizing.

Leaning connection method

From May to July every year, the tassel and sweet-scented osmanthus are cut off from 5cm to 10cm each at appropriate height, and the two diagonal joints with the depth and dry diameter of 1x4 to 1ap3 are aligned with the cambium and tied up with plastic film strips. Cut off the lower part of the scion and the upper part of the rootstock one month later (20 days faster).