Berry Growing time:
Name, Time to grow, total time to harvest
Cheri, Chesto, Pecha, Rawst, Aspear: 4:30, 18:00
Leppa, Oran, Persim: 6:00, 24:00
Lum: 18:00, 72:00 (3 Days)
Sitrus, Pomeg, Kelpsy, Qualot, Hondew, Grepa, Tamato: 12:00, 48:00 (2 days)
Figy, Wiki, Mago, Aguav, Iapapa: 7:30, 30:00 (1 day and 6 Hours)
Razz, Bluk, Nanab, Wepear, Pinap: 3:00, 12:00
Cornn, Magost, Rabuta, Nomel: 9:00, 36:00 (1 day and 12 hours)
Spelon, Pamtre, Watmel, Durin, Belue: 22:30, 90:00 (3 days and 18 hours)
Occa, all berries that reduces super effective damage : 27:00, 108:00 ( 4 days e 12 Hours)
Liechi, Micle, every pinch berries: 36:00, 144:00 (6 days)
I don't know the exact time that it takes to get dry, and it is really important. The only thing I Know is that Cheri, Chesto, Pecha, Rawst and Aspear never gets dry enough to harvest less berries, so I never water then.