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Summer is well and truly here! and so is summer lawn care. The temperature is increasing, and we are enjoying the outdoors, going about finding ways
Buy Seasol Seaweed Concentrate 1L in Adelaide from Newton Building & Landscape Supplies. Order online or pick up in store with delivery available.
Looking for Australia’s most trusted seaweed plant tonic to promote healthier plants and stronger roots? Newton Building & Landscape Supplies stocks Seasol Seaweed Concentrate 1L, a premium seaweed-based plant health treatment designed to stimulate root growth, improve plant resilience, and enhance overall garden performance. Available for online order, delivery, or in-store pickup across Adelaide, Seasol is suitable for flowers, vegetables, fruit trees, lawns, natives, indoor plants, and landscape gardens.
WHAT IS IT?
Seasol Seaweed Concentrate is a premium liquid seaweed solution made from sustainably harvested seaweed. Unlike traditional fertilisers, Seasol works as a plant tonic, helping to stimulate root growth, improve nutrient uptake, and strengthen plants against environmental stress. Regular applications encourage healthier growth, stronger root systems, and improved plant performance throughout the year.
Suitable for use across the entire garden, Seasol helps plants establish quickly, recover from transplant shock, and cope with challenging growing conditions including drought, heat, frost, and pest pressure.
BEST USED FOR
KEY BENEFITS
APPLICATION GUIDE
Dilute and apply according to the manufacturer’s instructions. Use regularly throughout the year to maintain healthy root systems, support plant establishment, and improve resilience during periods of environmental stress.
WHY CHOOSE SEASOL?
For decades, Seasol has been Australia’s favourite seaweed-based plant tonic, trusted by professional growers and home gardeners alike. Its unique formulation helps plants thrive naturally by supporting root health and improving overall plant performance.
WHY BUY FROM NEWTONS?
Newtons Building & Landscape Supplies has been a trusted Adelaide supplier since the 1970s, helping homeowners, gardeners, and landscapers source quality fertilisers, plant tonics, gardening, and landscaping products. Our knowledgeable staff can recommend the right products for your garden project, and we trade 7 days a week for convenience. Order online anytime or arrange delivery across Adelaide from our Newton, Gawler (Evanston South), and Burton locations.
At Newtons Building & Landscape supplies, we pride ourselves on selling the best quality products to industry standards. We only sell products that are covered by the manufactures warranty.
The majority of warranties are covered between 3 months & 2 years.
If you would like to check if your purchase is covered by warranty please contact us.
If you do receive a product that is faulty please call 8415 7777 or email
sales@newtonsbuilding.com.au
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Newtons Building and Landscape Supplies has a huge range of products for tradies, builders, and DIY enthusiasts. From sand, metal, and rubble to cement products and masonry blocks, we have everything you need for your building or renovation project.
Newtons Building and Landscape Supplies have a huge range of landscape garden supplies available. From mulches and ground covers, fertiliser, turf to compost, soil and loam, we have it all. With over 6000 products so you can be sure that we have everything you need to build the perfect home and garden.
Discover reliable water solutions at Newtons Building & Landscape Supplies. From tanks and pumps to irrigation, drainage, fittings, and water management essentials, our range is designed to help you store, move, and use water efficiently around your home, garden, farm, or worksite. Whether you are upgrading your backyard, managing stormwater, setting up irrigation, or sourcing practical plumbing supplies, Newtons has quality products and helpful advice to get the job done. Visit us at our Newton, Burton, or Gawler locations for dependable water solutions that suit South Australian conditions.
Discover the benefits of Hebel, the high performance building product made from Autoclaved Aerated Concrete (AAC). Newtons Building and Landscape Supplies are proud to stock Australia’s only manufacturer of AAC by CSR Hebel. Experience the durability and versatility of Hebel blocks and panels for your next construction project.

Summer is well and truly here! and so is summer lawn care. The temperature is increasing, and we are enjoying the outdoors, going about finding ways
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