Well first there’s no Buddhist “creed”. It’s an open ended path of discovery. So though Buddha said many things as recorded in the sutras and many teachers since then have said many things, unlike in other religions you don’t have to say “I believe in …” about anything when you go through the “refuge ceremony” which is when you make a public commitment to follow the path of the Buddha. Instead it is a commitment to openness and to becoming a “refugee”. So though there are many Buddhist traditions and ideas and beliefs, they are all much more by way of guidelines and suggestions and things to look at.

So in that sense it is hard to say that Buddhists don’t believe you can take rebirth as a plant. You don’t have to affirm a belief in rebirth at all. Just to have an open mind about what happens when you die. It’s a commitment to not closing yourself off from answers that may surprise you.

But generally Buddhists tend not to believe you can be reborn as a plant. While the Jains think you can be. That’s why Jains are so careful about their dealings even with plants. They talk about eating fruit rather than to eat food that involved cutting down plants or branches and fallen fruit rather than taking fruit from a tree.

The nearest thing with Buddhist stories is that you can have beings who live in trees like our dryads (in trees) and naiads (in lakes and rivers), of Greek mythology. So they may closely identify with a particular tree, think of themselves as that tree even, but they are more a spirit of the tree than the tree itself. Nature spirits. Who they would think of as beings like us, in the sense that they are born, grow old and die, maybe with longer lives.

Dancing Dryads by Albert Pinkham Ryder - Wikipedia

But there’s also a Buddhist idea that is almost like a kind of immanent consciousness in everything. Like, that we separate ourselves off from it. Also ideas of messages that are hidden in the world. Getting moments of insight from seeing a flower, or a stream, or a cloud. Messages of insight from a trivial seeming thing like a broken pot. So it’s like, the world itself is far more alive than we think. Every moment then instead of being surrounded by dull lifeless objects that we seem to understand so well, there is something far more dynamic going on. So then - this idea of dividing it up and say - “I’m a sentient being and this insect is a sentient being, but this tree is not, although there might be a spirit lives in it” - that’s being far too cut and dried and making conceptual divisions that may be missing a lot of what is going on. The answer isn’t though to just give up on those concepts. We can’t do that anyway. To try to give up on concepts is itself likely to be a conceptual game for us if we try that. It can though help with respect for other views and to help keep an open mind even about things we may have become very confident about. And to be open to surprises even from things that seem totally boring and dull, like a blade of grass, or a tree, or even a stone.

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