Cross-Pollinator

BZ is a busy bee and needs your guidance to reach her hive. Each garden has 36 patches on a 6x6 grid and there are two flowers on each flower bed patch. BZ will fly, orthogonally, from one patch to another, as long as the two patches have one flower in common. Note that BZ cannot be convinced to fly to a patch she has been before, since such patch has no pollen left. Help BZ bring the most pollen to the hive by sunset. Solve the longest path problem before the time runs out. Source: The Game Website.