A green tinge has appeared on the stadium floor after three varieties of grass were sown on January 24.
Forsyth Barr Stadium operations manager Coryn Huddy said the timetable was running to plan as it would take five to seven days after the grass was sown for it to start coming up.
The first signs of green tinge had come last Saturday and it had continued growing.
The grass would be cut within a couple of weeks and that would help it grow and combine.
The soil base of 300mm, with a sand top of 75mm, had been previously laid by contractor Delta.
The next major step was to install the Desso GrassMaster system in April.
The system includes artificial grass fibres injected 20cm deep into the surface every 20mm.
As the grass grows, the roots intertwine with the artificial fibres.
This anchors the field to create a solid, even structure with good drainage and playing comfort.
The fibres are injected by a large machine, specifically built for the job.
Huddy said no-one was walking on the grass, within reason, and plenty of water was being put on the surface, along with fertiliser.
There is 16km of irrigation below and above the ground, along with just over 2km of drainage.
After being involved in the grass growing project with testing and more testing for nearly four years, Huddy said it was exciting to be getting the ground green.
"It is early days still. We have reached one milestone with the grass in and growing but there are probably still another 10 to go," he said.
"We've only got one chance to get it right with the World Cup, so we've got to do everything in our power to get things done."
