Are there any grammar ?
Lintao's Paeonia papaveracea has many varieties with big petals and zesty fragrant. The petal has clear purple spots on it ; Its stem is very high and the flowers have larger size than other kinds .Domesticated from wild kinds , the plant is adaptable for almost environments for growing. Some patterns of Paeonia papaveracea were found on some unearthed pottery wares which are maybe made thousands of years ago.

Question

Answer

Just one comment to add here:

In your original text,  the phrase 'Its stem' in the second line is correct. This is a possessive adjective, and there is no apostrophe in this word.

Adding an apostrophe would make this incorrect. The form 'It's' is the contracted version of ' It has' or 'It is'.

Answer

Lintao's Paeonia Papaveracea has many varities with big petals and zesty FRAGRANTS. The PETALS HAVE clear purple spots on THEM. IT'S stems are very TALL and the flowers have larger SIZES than other kinds. Domesticated from wild kinds, the plant is adaptable for almost ALL environments for growing. Some patterns of Paeonia Papaveracea were found on some unearthed pottery wares which were PROBABLY made thousands of years ago.