I had to re-read to find this one. It almost got lost in the shuffle. This seems like a good sign for petals and dew drops! (But it seems like I read that regular read trilliums offered the best chance of dew drops anyway)
Also, the timers seem to be the same as the timers on the single plants. I only have the iceland poppy shrub so far, and haven't collected from it yet, as I am maxed on all petals and dew drops....will update when I collect.