"It has grown into a much bigger project than we would normally attempt, even in the best of conditions.
"One thing we all know about Kate now is that she has courage, determination and guts — so thank you Kate."
The concept involves participating artists producing work over a 100-day period.
"They don't actually need to have produced a work every day," said Hartmann, who took up the idea four years ago and exhibited the resulting work at her Tutere Gallery after it had become popular globally.
The group has grown to 25 from an initial cohort of six four years ago.
"The important thing is for each artist to immerse in the creative process each day.
"100 days tends to attract diverse people including established artists and some who have never exhibited before.
"A very valuable byproduct of 100 days is the community that is formed.
"Artists can be protective about their work," Cornish said.
"This group has been wonderful in the way they have been prepared to share their knowledge and their experiences."
Bayly said almost all the participating artists have a connection with Kāpiti.
"To that extent, it is wonderful to be able to contribute to nurturing the work of local artists."
The exhibition runs until December 12.
The artists contributing to 100 Days include Anne, Ruth Blair, Sara Boland, Mariana Collette, Diane Connal, John Cornish, Sheryl Gibbs, Kirsty Glasgow, Kate Hartmann, Brian Holt, Annelies Kamp, Sarah Kenworthy, Anna Layzell, Judith Le Harivel, Mandi-Lynn, Michelle Mainwaring, Rachel Mason, Birgit Moffatt, Angelique Monaghan, Chrissie Sallis, Amanda Smart, Sandra Smillie, Liz Stretton, Karolina Stus and Jane Woodhall.
The exhibition is extended by workshops offered by several of the artists with assistance from the Kāpiti Creative Communities Scheme.
