Asparagus could become unaffordable and hard to come by within just a few years if the expansion of dairy farms continues at its present rate.
The antioxidant-rich superfood was down to $2.50 a bunch at most grocery stores last week, but Horticulture New Zealand spokeswoman Leigh Catley said growers were looking for ways to make more money from their land - and the answer was often dairying.
"The competition for productive land is enormous. It wouldn't take more than a couple of dairy farms to have a huge impact," she said.
New Zealand's "Mr Asparagus" Peter Falloon said the steady shift over the last decade in the central North Island was particularly worrying.
"They used to have 800ha [of asparagus growing] in the Waikato and now it's down to 200. In the Bay of Plenty, it's down to 10ha," he said.