A new horticultural initiative is set to transform New Zealand into a commercial catnip producer. 

Kiwi startup, Muttley's Estate, is believed to be the world’s first manufacturer of catnip-based 'pet wine', that can be stored for up to 12 months. 

The garden herb's estimated to positively impact mood in about two-thirds of cats while helping to soothe anxiety in dogs. 

Muttley's Estate Director John Roberts told Mike Hosking catnip's currently not very widespread or commercially used. 

He says they're trying to grow that market segment, as it's a relatively easy crop to grow. 

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