Yeah, the rates of collection per stamina are pretty awful in this 1st phase. You need to collect 2000 of Heavenly Flower Fireworks to get Level 30 Mirabilis with all of equipment slots and battle skills. (The chart is not lined up properly..so I might be wrong about the cost. If I am, sorry!) That means that you need to spend 4,000 stamina to get her complete form. You receive 1 stamina point per 3 minutes, which means that you receive 480 stamina per day without gathering. Lets just say that with gathering you receive about 550-650 stamina per day. It would roughly take about 6-8 days to get completed form without using stamina for anything else. I just hope that 2nd phase has a better rate...