You cause a creature or an object you can see within range to grow larger or smaller for the duration. Choose either a creature or an object that is neither worn nor carried. If the target is unwilling, it can make a Constitution saving throw. On a success, the spell has no effect.
If the target is a creature, everything it is wearing and carrying changes size with it. Any item dropped by an affected creature returns to normal size at once.
Enlarge. The target's size doubles in all dimensions, and its weight is multiplied by eight. This growth increases its size by one category-- from Medium to Large, for example. If there isn't enough room for the target to double its size, the creature or object attains the maximum possible size in the space available. Until the spell ends, the target also has advantage on Strength checks and Strength saving throws. The target's weapons also grow to match its new size. While these weapons are enlarged, the target's attacks with them deal 1d4 extra damage.
Reduce. The target's size is halved in all dimensions, and its weight is reduced to one-eighth of normal. This reduction decreases its size by one category--from Medium to Small, for example. Until the spell ends, the target also has disadvantage on Strength checks and Strength saving throws. The target's weapons also shrink to match its new size. While these weapons are reduced, the target's attacks with them deal 1d4 less damage (this can't reduce the damage below 1).
* - (a pinch of powdered iron)
if you cast it on the mount then you are being worn and carried so I think unless there's some rule against this you would also grow to the same size as your new mount
dude you are such a lifesaver me and my friend were having a talk if a Target could be affected by a in large reduce more than once and they kept telling me to go look at the errata and then I looked in here and you gave me the ability to go find it thank you so much
Have multiple people cast the spell on the same target. It doesn't say that it doesn't stack, so stack the shit out of it.
The spell already reduces the target to 1/8th the weight, and half the size, I agree with the higher level casting suggestion if your DM is willing to homebrew
I hate to burst your bubble, but it doesn't say it in the spell description because there is a general rule in the Player's Handbook section on spellcasting that says that the same spell cast multiple times on the same target does not stack.
Did druids used to be able to learn Enlarge in earlier versions or...?