Plant citronella in slightly acidic, sandy, or chalky loam with a pH level of 5.8 to 6.3. This soil is where it will grow best, but the plant will adapt to any soil type as long as it drains well.

Citronella plants are a type of pelargonium – which ... In too much shade, citronella can grow leggy as it stretches for more light,' Jessica continues. She says they will grow best with at ...