I personally ignore every garden spawn that jumps up during this event.
Its not worth it. The garden is a permanent thing, but once this event is gone it will be back to the foot slogging and collecting the life crystals one by one again.
So thats why I think its better to spam this events map as much as possible. For me just 30 cyrstals for the 6* Skillbloom, after that keep farming to get back on track once the shop has refreshed.