The secret is go to garden then buy seeds “Midnight Blue Tulip” Just buy in large quantities, for example I planted 10 seeds for best results. If you have a lot of money and garden large enough, could buy more the seed again.
NOTE: Midnight Blue Tulip only for member min. level 5 and its grown in 6 hours, After all done just harvest.
Here the sample result:
Ready for Harvest
Get 310 mulch and 10 experience points per each flower!!!
Do harvest to all flower, then see your level indicator if full go to your nest. You should raise new level.