Vegetable prices increased 3.8%, with cauliflower, tomatoes and lettuce leading the way, consumer prices manager Matt Haigh said.
"Cauliflower prices rose 66% to reach their highest level since our series began in 1994. The average price of a 1.5kg head of cauliflower was $8.24," Mr Haigh said.
These prices were 47% higher than this time last year, while tomato and lettuce prices were 14% higher.
Mr Haigh said the increase was due to "a combination of dry weather and high demand".
Non-alcoholic drinks saw a 1.9% price increase, reflecting less discounting on energy drinks and soft drinks. Grocery food prices rose 0.3%, influenced by confectionery (up 8.7%), snacks (up 5.3%) and bread (up 1.6%).
Meat poultry and fish prices fell 0.2%, with lamb prices dropping 5%. Beef prices continue to rise, up 0.7% from last month.
Overall food prices were 0.1% lower than March last year. Lower prices for fresh milk (down 9%), cakes and biscuits (down 7.7%) and yoghurt (down 13%) influenced a 2.7% fall in grocery food prices over the 12-month period.
In that time fruit and vegetable prices increased by 3.6%.