My idea is to give more flower via the Sniffer and a utility to each of them.
For example for the torch flower we could use it to craft glowing potions, another flower to make a potion that reduces the sound made by the player.
We could even put 2 prehistoric trees obtainable via shoots that the Sniffer digs up, but that will be rare.
And if not sorry I used Google translation hard this post.