How to Fertilize cactus geranium?
High-potash pelargonium feed every two weeks through blooming warm season

cactus geranium · Pelargonium echinatum
Also known as: sweetheart geranium
Grow in well-drained, sandy loam in a sunny spot. Plants are drought tolerant once established, keep almost dry during the dormant period. May tolerate temperatures down to -3°C for short periods, but will need protection from heavy frosts
High-potash pelargonium feed every two weeks through blooming warm season