plant out(redirected from planted those out)
To transplant a seedling or plant from a sheltered location, such as indoors or within a greenhouse, to the ground outside. You'll want to wait until it is warmer outside before you plant out your tomatoes. You can plant these out as soon as there are several strong leaves on the stem.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.