Statistics Canada says wholesale sales rose 1.9 per cent to $47.6-billion in May, following a 0.1 per cent dip in April.
The agency reports that sales volumes rose 1.6 per cent, driven by higher sales of farm supplies and equipment, which rebounded from weather-related declines in April.
The lawn and garden equipment and machinery sector also showed strong gains.
The motor vehicle and parts sub-sector registered the largest decline at 1.5 per cent, mainly because of sales disruptions following the Japanese tsunami in March.
Wholesale sales rose in eight provinces, with Saskatchewan reporting the largest percentage gain at 7.3 per cent.
The only declines came in Newfoundland and Labrador and Nova Scotia.
The report says inventories edged up 0.1 per cent to $55.9-billion in May.