Weed Prevention Beats Costly Cure

Forest Floor Mulch Around Trees in New Zealand
Forest Floor Mulch Around Trees in New Zealand

Weed Prevention Beats Costly Cure

A recent news story, has highlighted the plight of Councils who have rightly decided to ban the use of toxic glyphosate in their parks and reserves.


Increasing concern over the cancer dangers posed by glyphosate, (as outlined in an earlier Wholesale Landscapes’ article), has seen Christchurch Council severely restrict use of the herbicide by its grounds staff. Now it seems, their inability to deal with the consequent proliferation of weeds is causing a budget blow-out.


We here at Wholesale Landscapes applaud the Christchurch City Council’s health-aware and risk-averse approach, so, in this article we take a look at the best weed-busting alternative to Roundup.


When it comes to weeds, prevention is better than cure. Hand-weeding is a labour-intensive and expensive exercise. Christchurch City Council found its road and footpath maintenance budgets ballooning to $2 million higher than forecast lately, primarily because of its reliance on this manual method of weed control. It has also been using steam weeding, another costly option.


A proactive and preventative approach to weed control is the best. Mulching provides a cost-effective, healthy and sustainable alternative for weed suppression.


Mulches, generally, are a great way to enhance the visual appeal of a garden or landscape, reduce maintenance and help increase nutrients for plants, improving fertility and the general health of the soil. Applying mulch can also help with conservation of soil moisture, reducing the need for watering. Most importantly, mulch acts supremely-well as a weed suppressant.


A great bark mulch will contain a range of cambium bark and stringy bark. This allows the particles to bind together to better retain moisture and better suppress weeds. Generally, bark will last up to 3-5 years, nourishing the soil with natural organic material over this time, all whilst preventing weed growth.


Since 2007, both Tasman District Council and Nelson City Council, through their contractor, Nelmac have used Wholesale Landscapes’ Forest Floor® Mulch. This product’s success as a weed-suppression agent is evident in the district, with the local parks and reserves resplendently speaking for themselves.


Wholesale Landscapes’ Forest Floor® is the gardener’s favourite time-saver, a super water-conserver and the best battler in the garden in the fight against weeds. Since 1999, Wholesale Landscapes have been producing and selling this highly-popular mulch, which is also a favourite of landscapers, contractors and councils.


Forest Floor® contains pine cambium fines, and flake, shredded to 100mm in length, which allows the mulch to bind together, creating a mat through which weeds cannot penetrate. As a result of the fines and flakes aging, gardens are fed with a constant supply of nutrients and the soil condition is enhanced through increased carbon content. This improves soil water and nutrient-holding capacity, microbial biomass activity and available nitrogen and phosphorous content, all improving plant health.


The cost of application of Forest Floor® is as little as $2.80/m2 and its weed suppression properties will last around 18 months. This beats the labour costs of hand-weeding, hands-down, and provides a safe alternative to dangerous chemical applications.


Increased lobbying by the public will soon see glyphosate use in public spaces banned across the country. The New Zealand Soil and Health Association has called for an immediate ban on its use and for increased government support for research into non-chemical alternatives. Last year’s US court finding, (which ordered Monsanto, which makes Roundup, to pay $440 million damages to a Californian man who claimed herbicides containing glyphosate had caused his cancer), prompted Associate Environment Minister, Eugenie Sage, to ask the Environmental Protection Authority to consider putting glyphosate on its list of hazardous substances.


Get ahead of your weed problem, in a natural, cost-effective and sustainable way, apply Wholesale Landscapes’ Forest Floor® Mulch today.

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Our Truck Volumes

3T Truck

Full truck load volumes
  • Bark: 7m³
  • Compost: 4m³
  • Supersoil: 3m³
  • Soil: 3m³
  • Shell: 3m³
  • Stone: 1.5m³

7.5T Truck

Full truck load volumes
  • Bark: 20m³
  • Compost: 10m³
  • Supersoil: 7m³
  • Shell: 8m³

11T Truck

Full truck load + trailer volumes
  • Bark: 25m³ - 65m³
  • Compost: 17m³ - 38m³
  • Supersoil: 12m³ - 29m³
  • Shell: 12m³ - 30m³

In Canterbury or other regions? We offer bulk truck and trailer load volumes throughout the South Island.

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Below is a list of our retailers. Please contact them for stock and supply.

PLEASE NOTE: Not all of our products are supplied to all retailers. We can only guarantee product quality of products we manufacture.

  • Wholesale Landscapes – Stoke Yard (that's us!)
  • Stoke Garden & Landscapes
  • Bay Landscapes & Garden Centre
  • Goldpine Richmond
  • Māpua Landscapes
  • Stonescape Garden Supplies (Concrete & Metals)
North Canterbury
  • Woodend Landscape Supplies
  • Amberley Hire & Landscape Supplies
  • Hanmer Landscape Supplies
  • Garden Box – Middleton
  • Urban Paving & Landscape Supplies – Harewood
  • Pearsons Landscape Supplies – Bromley
  • Styx Mill Landscape & Nursery  – Styx
  • Mitre 10 Mega Ferrymead
  • Odering Garden Centre Christchurch - Philpotts
  • Odering Garden Centre Christchurch - Barrington
  • Mainscape Garden Supplies
South Canterbury
  • Fulton Hogan Timaru
  • Ashburton Contracting Ltd (ACL)
  • Centaland
  • CMT Group
  • Kaikōura Landscape Supplies

Pick-Up Information

We welcome pick-up of product by the public for volumes 1m³ and over. Please check your estimated trailer weight rating below. If your trailer is unable to hold the weight of our minimum pick-up volume, please book a delivery. *We require a minimum order quantity of 3m³ for any bark, compost, soil or shell products and a minimum order quantity of 1.5m3 for any stones or aggregates.

Standard trailer
(750kg limit)
  • Bark / Mulches
  • Shell
  • Compost
  • Soil
  • Stones / Aggregates
Tandem trailer
(1,500kg limit)
  • Bark / Mulches
  • Shell
  • Compost
  • Soil
  • Stones / Aggregates
Tip truck
(2,000kg limit)
  • Bark / Mulches
  • Shell
  • Compost
  • Soil
  • Stones / Aggregates

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*We will quote to the nearest cubic meter.

Recommended depths

Typically you need a finishing layer of screened soil of 100mm when working with an uneven surface. 100mm of soil will allow to even out any hollows and give enough depth to create a flat surface

A general rule for compost is to allow for the depth of the current root structure of your plants with an additional 30-50% to mix in with the base. If you’re planting into holes or filling up a vege garden  you will need to accommodate for this prior to filling up

We recommend 100mm (10cm) deep for new bark gardens and planting into bare areas. For existing gardens with some cover, we recommend 75mm-100mm (7.5cm-10cm)

Note: Barked areas for playground impact protection need to meet NZS5828:2015 standards and is calculated on the fall areas and the height of the playground. Please contact us to discuss your barked playground areas

For paths and driveways which are often exposed to car and foot traffic, we recommend 100mm-125mm (10cm-12.5cm) on newly prepared areas due to settling of product.

This excludes preparation, compaction or drainage gravel underneath. For existing areas 75mm thickness is recommended for areas needing a small top-up.