GRENZ Horticulture Ltd, 32 Noble Johnston Avenue, Katikati (2026)

Name: GRENZ Horticulture Ltd
Address: 32 Noble Johnston Avenue, Katikati, 3129,7647, NZ
Telephone: +6421872530

03/02/2026

⚠️WARNING⚠️
did you know that 70% of all pest plants in New Zealand were originally found within gardens?

Here are 3 of the toughest and meanest examples of pest plants to come from gardens.

‼️In your garden, prioritise native species‼️
Any introduced species can become an ecologically damaging species, particularly fast-growing uncontrolled garden species.

DO THE RIGHT THING. Don’t plant introduced species unless they are within a controlled horticultural environment. If you see any of the species listed above within your community, report them to your local authorities.

Have pest species taken over your property? Are you constantly removing them only for them to pop up once again? Get in contact! Here at GRENZ Horticulture, we can help you formulate a long term pest management plan, protecting your horticultural and agricultural property for generations to come.

30/01/2026

🚨 This weeks 5 most infamous pest plants in NZ horticulture 🚨
— as seen in orchards, gardens, and growing spaces across Aotearoa

Every week, we discover 5 damaging pest plants bringing mayhem, biodiversity destruction, and profit loss to the New Zealand horticultural industry. The more you know about them, the better we can protect horticultural business and environmental sustainability.

At GRENZ Horticulture, we deal with these problem plants every week. They invade productive land, compete for nutrients, spread aggressively, and cost growers time and money if left unchecked.

Here are five of the worst offenders affecting New Zealand horticulture 👇
(Scroll through to put a face to the enemy 👀)

Early identification + proper control = healthier crops and better outcomes 🌱
If you’re battling any of these, we’ve got the tools and experience to help.

📍 Based in NZ
🌿 Practical, effective horticulture solutions

15/02/2025

Photos from a garden cleanup job today. Still have to trim the hedge in the back and shape up some bushes which had wasp nests, but overall a large amount of the work is complete.

P.S. On regards to more community work, we have been getting more done whenever possible. Will upload a video on YouTube soon with some videos of some of the community work we’ve been doing.

10/02/2025

Quick little job for the community yesterday over on Cumberland Street. Saw calls for it to be done in local groups and I was in the area so thought I’d just get it done. If anyone else notices any overgrown burms or lawns in the community that are in need of a good mowing, let us know. We will try cover as much community work as possible.

If you’re in need of gardening, lawnmowing, or landscaping give us a call and receive a free quote on any job!

09/02/2025

Weeds gotten out of control this summer? We’ve got you covered!

Contact us via the links on our page for a free quote on any job.

Here are some before and after images of a job that was completed last week. This garden hadn’t been touched for over three years and had been suffocated by invasive pest plants. The owners called after they noticed erosion along the fence line due to the death of the native flora that was planted here.
Our cleanup job involved one person and stretched from 8am to 3pm. It included: gate and hinge repairs, professional invasive species removal, w**d removal, minor path repairs, minor garden bed construction, plant pruning, professional pest plant herbicide cut and pasting, leaf raking, insect repellent around house and w**d whacking.

Address

32 Noble Johnston Avenue
Katikati
3129,7647

Telephone

+6421872530

Website

https://cetsgroup1.wixsite.com/my-site-5, https://linktr.ee/GRENZhorticulture

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