Countless times I have used Nature Touch on a player and he dies before the spell has been completed.
Then to make matter worst, I end up casting NT on a dead body.
If I had a quick heal that I would give a burst of heal and then follow with a NT it would make the druids life more fun.
As it is now it is frustrating.
We also have Spring of Life a total waste of effort.
It still is not as good as someone just using an idol.
There are tons of problems with the spell and too many to discuss here.
SO HERE IS AN AWESOME SOLUTION !!!!

Make SoL a instant heal spell!
Rogues are known as a damage class and as such they have 6 (six) damage skills
Druids are known as a healing class and we have 3 (three) healing skills
Rogues have Swadowstrike which is a instant damage skill
Seems only fair for druids to get an instant cast heal spell
Dump SoL as a Resurrection spell and make it a Spring of Life instant heal spell.
The new SoL should not heal as well as Nature Touch, maybe half
The cost should be double Nature Touch.