New Living Translation
Night and day, while he’s asleep or awake, the seed sprouts and grows, but he does not understand how it happens.

American Standard Version
and should sleep and rise night and day, and the seed should spring up and grow, he knoweth not how.

Berean Study Bible
Night and day he sleeps and wakes, and the seed sprouts and grows, though he knows not how.

Douay-Rheims Bible
And should sleep, and rise, night and day, and the seed should spring, and grow up whilst he knoweth not.

English Revised Version
and should sleep and rise night and day, and the seed should spring up and grow, he knoweth not how.

King James Bible
And should sleep, and rise night and day, and the seed should spring and grow up, he knoweth not how.

World English Bible
and should sleep and rise night and day, and the seed should spring up and grow, he doesn't know how.

Young's Literal Translation
and may sleep, and may rise night and day, and the seed spring up and grow, he hath not known how;

Mark 4:27 Additional Translations ...