A team of eight groundskeeping staff have been hard at work tending the pitch, which has a current grass length of 25mm - half the usual rugby length of 50mm.
"It's all about ball speed," Mr Hart said.
They also need to keep the lines freshly painted every few days, and to keep the grass trim.
"Normally this time of year we'd mow maybe once a week, but we're mowing every day."
Four different types of rye grass were sown in March, blended with the couch grass which is the stadium's usual summer crop. They also sowed nearly twice as much seed as usual.
"Couch is what we normally sow, rye is just there to make it look pretty," Mr Hart said.
There was no one standard or type of grass each ground had to use, but the Whangarei team had chosen to sow the extra seed for their own piece of mind.
"If one grass type fails, we have a back-up."
The ground staff also have spare grass squares ready to slice up and slot into place should divots form.
As well as Northland Events Centre, practice pitches at Springs Flat and Kensington Park also need to be maintained to the same standard for the length of the tournament.
There was much more to maintaining pitches than most people realised.
"There's disease, nutrition, all sorts of technical stuff. It's not just mowing the grass."
