"Universal Rootstock" is not truly universal.
Main content introduction: Knowledge about common flower cultivation, the "Universal Rootstock" is not universal, details are as follows:
Some flower enthusiasts may see other enthusiasts mention universal rootstock and then mistakenly understand that there is such a type of rootstock. In fact, universal rootstock is only relative to a certain type of grafting and there is no truly universal rootstock. The so-called universal rootstock is actually used to express that this rootstock has a wide range of applications, but it is still limited to the same category. Below we list two types of examples.
The first type, cacti.
Grafting on plants like蟹爪兰 (Schlumbergera) and仙人指 (Rhipsalis) is very common, and 龙神柱 (a type of cactus) is called the "universal rootstock", but this is only relative to cacti because grafting can only be done between the same type of plants.
The second type, grafting on citrus fruits like oranges and pomelos.
枳 (Poncirus trifoliata) is widely used as a rootstock for grafting citrus plants and is also called the universal rootstock.
Therefore, for the universal rootstock, enthusiasts should not mistakenly believe that there is really such a type of rootstock. The universal rootstock is only for a certain type of widely used plants with strong affinity.
The above is the related explanation of why the "Universal Rootstock" is not truly universal, hoping to bring a little help to your life!