Speed gro affects only the growth and first harvest of a multi-harvest crop. Quality fertilizers ([[Basic Fertilizer]], [[Quality Fertilizer]], and [[Deluxe Fertilizer]]) affect all harvests of a multi-harvest crop. | Speed gro affects only the growth and first harvest of a multi-harvest crop. Quality fertilizers ([[Basic Fertilizer]], [[Quality Fertilizer]], and [[Deluxe Fertilizer]]) affect all harvests of a multi-harvest crop. |