ROSE MIX ROSE MIX Specially compiled of composted bark, river sand, compost, acid mix and organic fertilizers makes this the ultimate rose growing medium.Use neat for roses in containers or dig into beds for new roses.Use as a mulch in existing rose beds.COMPOSITIONCompost, composted bark, acid mix and River sand.AVAILABLE SIZESBags: 30dm³Bulk; 1m³, 2m³ and 6m³ Back