How to Propagate Michelia alba? Detailed Guide to Seed Sowing, Layering, Grafting, and Cuttings

How to propagate Michelia alba - in fact, Michelia alba has quite a few propagation methods, and it can generally be propagated in four ways: seed sowing, layering, grafting, and cuttings. Below, the steps for each of these four Michelia alba propagation methods - seed sowing, layering, grafting, and cuttings - are organized separately.

How to Propagate Michelia alba

1. Seed Sowing Propagation Method

For Michelia alba, sowing is best done at the end of September or in early October.

First, take the seeds out of the ripe fruit and soak them in wood ash water for 1-2 days, rub off the waxy aril, rinse them clean with water, and then they are ready for sowing. If sowing indoors in pots in March, seedlings will emerge in about 20 days or so.

2. Layering Propagation Method

Michelia alba layering propagation can be divided into two types: ordinary layering and air layering.

a. Ordinary Layering

Ordinary layering is generally carried out in February to March. First, cut about halfway through the branch to be layered, then make another upward cut a segment long, place a small piece of tile in between, and slowly press the branch into the soil, avoiding breaking it. A thick "U"-shaped wire can be used to help hold the branch in place so it does not spring up, and finally mound soil over it. If this layering method is used in spring, the layered branch can be cut off and planted separately once roots and shoots have emerged.

b. Air Layering

Air layering is carried out before the start of the dog days. First, select from the mother plant a healthy, disease-free, vigorous young branch about 1.5-2 cm in diameter, make a slit at the lower end of a fork in the branch, then fit a bamboo tube or a bottomless clay pot over it, fill it with potting soil, and tie it tightly on the outside with fine string. Avoid touching it, and water it frequently, but not too heavily - just enough to keep the plant moist. New roots will develop around May of the following year, and it can then be removed and planted out.

3. Grafting Propagation Method

The most recommended method for propagating Michelia alba is grafting. The rootstock is mostly chosen from 2-3 year old vigorous plants of Magnolia biondii or Michelia champaca. Approach grafting onto branches of the Michelia alba plant can be carried out in June.

The cut is about 3-5 cm long; after joining, bind it tightly with plastic strips so the cambium layers are pressed closely together.

After about 3 months, once the rootstock and scion have basically grown together, it can be cut away from the mother plant, and the upper part of the rootstock removed, giving a new plant.

4. Cutting Propagation Method

Choose vigorous, disease-free and pest-free branches as cuttings. After selecting the cuttings, handle them carefully. For softwood cuttings, insert them immediately after collection to prevent wilting from affecting survival. If the lower cut end of the cutting can be dipped in some freshly burned wood ash, it can also help prevent rot.

After inserting the cuttings, keep the cutting medium in a moist state. Generally, roots will form in about 50 days after cuttings are taken.