GOD'S WORD® Translation
It's one of the smallest seeds. However, when it has grown, it is taller than the garden plants. It becomes a tree that is large enough for birds to nest in its branches."

American Standard Version
which indeed is less than all seeds; but when it is grown, it is greater than the herbs, and becometh a tree, so that the birds of the heaven come and lodge in the branches thereof.

Berean Study Bible
Although it is the smallest of all seeds, yet it grows into the largest of garden plants and becomes a tree, so that the birds of the air come and nest in its branches.”

Douay-Rheims Bible
Which is the least indeed of all seeds; but when it is grown up, it is greater than all herbs, and becometh a tree, so that the birds of the air come, and dwell in the branches thereof.

English Revised Version
which indeed is less than all seeds; but when it is grown, it is greater than the herbs, and becometh a tree, so that the birds of the heaven come and lodge in the branches thereof.

King James Bible
Which indeed is the least of all seeds: but when it is grown, it is the greatest among herbs, and becometh a tree, so that the birds of the air come and lodge in the branches thereof.

World English Bible
which indeed is smaller than all seeds. But when it is grown, it is greater than the herbs, and becomes a tree, so that the birds of the air come and lodge in its branches."

Young's Literal Translation
which less, indeed, is than all the seeds, but when it may be grown, is greatest of the herbs, and becometh a tree, so that the birds of the heaven do come and rest in its branches.'

Matthew 13:32 Additional Translations ...