Please excuse my bad english.
My favourite class is the Druid and I have built some Druids with 2nd edition rules.
I am content or even happy with most of the druid rules.
But the leaf order druid feels lacking in its class feature selection and useability compared with the other orders.
Please consider the following changes:
-For the Goodberry Power: Make the Goodberries appear out of thin air. So you can use the power during any season and in every terrain. You might make them heal less afterwards.
-Add another class feature for the leaf order at lvl 6 or 8. Maybe some kind of transformation into a plant (plant form).
-Describe better what plants are able to do for you.
-The Verdant Metamorphosis feat got the same proplem as the Goodberry Power. It is too situational. Most groups rest at night, so as a leaf druid you can almost never use this power. Make it useable during the night in terrain where you can take root. And maybe change the recovered HP to a fixed value like 100 HP.