Not reverserble individually with the old crafting "can have up to 3 crafted modifiers"
Removing it in the craft bench will remove all.
But with the plants is a new area to discover.
If the tag appears one time on the item it is proberly removable /changeable right away. If you planted the right seed.
If there are 2 or more of the same tag then range will delete the best most of the time

And all tag must be taken in consideration not only the crafted ones.