Potential draw 3 on opponent's turn and decent protection for your insects who are vulnerable...although you can just target or remove melissa first(based off of plant ofc, my fav plant)
Delayed SS is still a nice SS, you basically recur almost all resources every time from a tribute of naturia monster...there isn't many things to tribute for though, but it is very nice because it is a 3 card weaker vanity's(This Horneedle and another Naturia), it also features a nice GY recursion effect because the other effects are not the best.
The SS negate requires a tribute, which you might as well run a horn of heaven for. The GY effect protects naturia monsters, which is why it will be run mostly.