Abstract: The growth of Phlox drummondii on different substrates (vegetable compost alone ml, vegetable compost + sand m2 (1:1), vegetable compost + compost + garden soil m3 (1:1) and vegetable compost + sand + garden soil m4 (1:1:1) was studied. The maximum number of days (32.67) to branching was recorded in substrate m4 while minimum number of days (26.0) to branching was noted in substrate m2. Maximum number of branches/plant (11.0) was noted in plants grown in substrate m2 while minimum number of branches/plant (.934) was recorded in substrate ml. Maximum number of leaves/plant (46.67) and minimum number of leaves/plant (39) was recorded in substrate m2 and substrate ml respectively. The plant height recorded in substrate m2 was maximum (16.0 cm) while that was minimum (10.87 cm) in substrate m4.