This is not entirely accurate. It actually procs for healing touch, regrowth, the bloom of lifebloom and swiftmend. So in ToL you could do something like

(0)regrowth->(1.5)lifebloom->(3)rejuv->(8.5)lifebloom->(14)swiftmend->
    ->(15.5)regrowth

where timings are shown in brackets and given in seconds.

However, this would clearly suit other classes really well. I just wanted to make the point that this trinket can be utilised by druids in ToL form not to mention the fact that it has very nice +healing.