A total of 68 bee forage plant species belonging to 34 families were documented across Tumkur, Bangalore North, Bangalore South, and Chikkaballapura districts of southern Karnataka from February to August 2025. Trees dominated with 26 species (38.24%), followed by herbs (18; 26.47%), shrubs (14; 20.59%), crops (6; 8.82%), and climbers (4; 5.88%). Of these, 29 species (42.65%) were nectar sources, 17 (25.00%) pollen sources, and 22 (32.35%) dual sources. Nectar sugar concentration ranged from 18 to 42% (mean 30.8%). Monthly flowering richness peaked in May (52 species) and declined to a minimum in August (15 species). Natural vegetation patches harboured the highest species richness (30; 44.12%). A strong positive correlation was recorded between flowering species richness and honey flow index (r = 0.87). The findings provide baseline data for floral calendar development and apiary management in the region.