Organic Farm Holdings Ltd operates the Mt Cass Wiltshires stud from its 350 hectare certified organic property just south of Waipara. Alongside the sheep stud we also run an organic beef finishing operation and an arable cropping business. The three systems run harmoniously and are complimentary to one-another.
About The Farm
Organic Farm Holdings Ltd

Bio Gro Certification
We grow herbs in the pasture, like chicory, which deters parasitic nematode larvae, and lucerne which is full of protein. We also practice a clean grazing regime, whereby the lambs, at their most vulnerable, graze on paddocks which have been rotated by crops and cross grazed with cattle to minimise parasite egg contamination.
Mt Cass Wiltshire Stud
Originally we developed the Mt Cass Wiltshire on Mt Cass Station, Waipara. With a ewe flock of 8300 ewes running on a 3300 hectares on coastal North Canterbury hill country we saw the need for a low input, low labour intensive sheep which would thrive in our organic farming system. Taking the shedding genetics we could find at the time we were able to breed a sheep that fit our environment and has since shown good movability all over New Zealand.
Please Get In Touch
Dave Wooldridge
General Manager
Dave joined the team at Mt Cass in 2021 after returning from working on farms in NZ and around the world. Dave is a keen believer in the future of the Wiltshire breed in NZ’s sheep industry and the benefits the breed has to offer farmers throughout NZ.