It is time you should start preparing for studying Arisaemas, the flowering should start by middle of April and may last up to June. Here are Eastern Himalayan species and their main flowering time. expect it to vary 15 days or so on either side: The Western Himalayan plants should flower 15-20 days later.
Arisaema costatum: May-June
A. griffithii: May-June
A. intermedium: May-June, West. Himal: June-July
A. propinquum: May-June
A. erubescence: May-July
A. flavum: May-June
A. jacquemontii: June-August
A. nepenthoides: May-June
A. tortuosum: May-July
Dr. Gurcharan Singh
Retired Associate Professor
SGTB Khalsa College, University of Delhi, Delhi-110007
Res: 932 Anand Kunj, Vikas Puri, New Delhi-110018.
Phone: 011-25518297 Mob: 9810359089