Kangaroo mother care (KMC) is effective in increasing mothers’ initiation and maintenance of breastfeeding (BF) for extreme and very preterm (VLBW) infants. Although South Africa has implemented KMC for more than two decades, little is known about mothers’ perspectives on KMC. The purpose of this study was to describe the BF intentions and practices of mothers of VLBW infants at home following discharge and assess the role long stay in KMC has on their decision to BF beyond discharge. This qualitative study was conducted at the KMC unit of a tertiary hospital in Pretoria, South Africa. Focus group interviews were conducted with 38 mothers of VLBW infants who had transitioned from neonatal intensive care (NICU) to KMC. We analysed transcripts following the five steps for qualitative thematic data analysis. Mothers were knowledgeable of the importance and value of BF preterm infants and conceded that breast milk has advantages over formula. Mothers had positive feelings toward BF their preterm infants. The stay in KMC increased the direct BF of their preterm infants, mothers’ BF efficacy, and had a positive influence on mothers’ intentions to continue BF following discharge and to exclusively breastfeed for six months. Their BF intentions, efficacy, and practices were influenced by the skilful BF counselling, training, and support they received from the nursing staff. High intention to BF among these mothers is suggestive of their knowledge and confidence in BF for their VLBW infants. It is important that nursing staff in NICU and KMC appreciate the significant role they play in mothers’ readiness and confidence to breastfeed beyond discharge.