This study aims to determine the growth response and Plant Production of Broccoli (Brassica oleracea Var. Botrytis) with application of Azolla composting in some plant spacing. This research used a Factorial Randomized Block Design with two factors namely: Azolla Composting Factor (A) with 4 levels 0, 32, 64, 96 and A4 = 128 g/plant. Plant spacing factor with 3 levels 45 cm x 45 cm, 50 cm x 50 cm and 55 cm x 55. The results showed that the application of Azolla compost 128 g/plant had significant effect on the stem height, stem diameter and flower weight. Plant spacing in 55 cm x 55 cm only affected the flower weight. There was no interaction between Azolla compost and plant spacing for all parameter observed.