If the keel wants to break through the foundation of the roof, it has to be trimmed so hard that it will live without cutting a branch down for more than ten meters.

Keel, also known as triangular overlord whip, many people think that it is a plant of cactus family, and some people call it "omnipotent grafting rootstock". In fact, it is a plant of Euphorbiaceae, which can only be grafted with tiger plum or unicorn of Euphorbiaceae. Cactus plants such as crab claw orchid cactus can not be grafted. Many people have some mistakes in understanding.

The keel cutting is also very simple, similar to the plant cutting of the cactus family.

When pruning the keel, we can cut the branches or cut a section of branches about ten centimeters. Don't cut them too short. If they are too short, the branches are easy to be pulled back, resulting in the failure of cutting.

If we want the keel to look beautiful, we should often trim it. We can trim it into a nine-pillar shape, that is, behead the keel when it grows to more than ten centimeters, and then let it split into lateral branches.

When the lateral buds grow out, we keep the three lateral buds on the three edges, and then cut off the heads of the lateral buds when they grow to more than ten centimeters, so that there are nine lateral buds, so that no matter how tall the keel is, there is no top-heavy appearance, because there are uniform nine pillars under it.

The pruned branches can be used for cutting. whether the branches are cut from the node or half, they can be cutted. the cut branches can be hung for about seven days, and the wound will be pulled and cut again, if not dried, it is easy to cause bacterial infection and cause rot.

The cutting soil can be mixed with peat soil, perlite and vermiculite according to the proportion of 1:1:1, or it can be mixed with the proportion of river sand and rotten leaf soil.

When cutting, the soil is wet to make sincere tide soil, put on the basin, after inserting the branches of the keel, do not water first, put it in a cool and ventilated place, wait until the basin soil is dry and water it.

It can take root in a week, and after taking root, we can gradually move it to a place where there is more light.

The growth of the keel needs sufficient light, but we should give it proper shade in summer, give it enough light in other seasons, and water it thoroughly. During its growing season, it should be fertilized once or twice a month and fertilized mainly with nitrogen fertilizer, which can make its branches grow strong and fast.

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