At least on the patch notes I'm reading, the initial heal portion is the same since they tripled it but made it one mushroom:
And the cap from overhealing is essentially unchanged. On live, each mushroom is capped at 67% of your health so:Wild Mushroom: Bloom healing and SP scaling was tripled
67% * 3 = 201%
With the one mushroom the patchnotes say:
So as far as I can tell, it went from 201% of our health to 200% of our health as the charge cap. Looks like they did nerf the charge time but imo they charge really really fast on live so it's not a huge deal. I'd gladly trade increased charge time for 1 GCD planting and the ability to move charged mushrooms around. The ability to move it makes them strong on every fight.Grow a magical mushroom with 5 health at the target ally's location. After 6 sec, the mushroom will become invisible. The mushroom grows larger as it accumulates healing power from 100% of overhealing done by your Rejuvenation, up to a maximum of 200% of your health in bonus healing. Recasting Wild Mushroom will move the Mushroom without losing this accumulated healing. Wild Mushroom: Bloom can consume your Mushroom to heal nearby allies. Only 1 mushroom can be placed at a time. Can be cast in Tree of Life Form, Moonkin Form. Druid - Restoration Spec. 40 yd range. Instant.
Also looks like the charge rate nerf is a bit more than 33%. As far as I can tell the overall rate went from 150% to 100% of overhealing and the rejuv overhealing no longer counts Naturalist or Mastery: Harmony on the rejuv overhealing but still doesn't affect the overall capped heal.