Seasol Complete Garden Health Treatment 4L – Seaweed Plant Tonic (1L & 4L)

A Seaweed Tonic for a Stronger, Healthier Garden

Seasol Complete Garden Health Treatment is Australia's trusted seaweed-based plant tonic, made to keep your whole garden in good health right through the year. Blended from Ascophyllum nodosum and Durvillaea potatorum seaweeds, it delivers the natural compounds that help plants grow strong roots, cope with stress and perform at their best. It comes in two sizes, a handy 1L and a value 4L, and both are concentrates that dilute a long way.

What Seasol Does for Your Plants

Rather than a straight fertiliser, Seasol is a garden health tonic. It enhances root growth and is ideal at planting, helps plants deal with pests, heat and frost, and stimulates flowering and fruiting. It also supports beneficial soil micro-organisms, which builds healthier soil over time. That all-round support is why so many gardeners keep a bottle on hand as a garden staple.

Great at Planting and During Stress

Seasol really shows its value at planting and potting time, where it supports root development and helps reduce transplant shock. It is equally useful whenever plants are under pressure, such as through heatwaves, cold snaps or pest attack, helping them bounce back rather than stall.

Simple to Use on Everything

Dilute Seasol with water as directed on the label, then apply it as a foliar spray over the leaves or as a soil drench around the roots. It is safe on everything from vegetables, fruit and flowers to shrubs and lawns, so one product covers the whole garden.

Key Features & Benefits

• Seaweed-based garden health tonic and concentrate
• Made from Ascophyllum nodosum and Durvillaea potatorum seaweeds
• Enhances root growth and is ideal for planting
• Helps plants cope with pests, heat and frost
• Stimulates flowering and fruiting
• Supports beneficial soil micro-organisms
• Safe on all plants, including vegetables, fruit, flowers and lawns
• Available in 1L and 4L concentrate sizes

Guaranteed Analysis (N-P-K)

• Nitrogen (N): 0.5%
• Phosphorus (P): 0.2%
• Potassium (K): 0.5%
• Plus natural seaweed compounds and trace elements

How to Use

Dilute Seasol with water at the rate shown on the label, then apply as a foliar spray over the foliage or a soil drench around the base of your plants. Use it when planting to help establishment, and regularly through the season to support growth and help plants through stress. It can be used across pots, beds, gardens and lawns.

Frequently Asked Questions

What does Seasol do?
It is a seaweed-based tonic that improves overall plant health, boosting root growth, helping plants cope with stress, stimulating flowering and fruiting, and supporting healthy soil.

Is Seasol a fertiliser or a tonic?
It is a plant health tonic rather than a straight fertiliser, and it works well alongside your normal fertiliser as part of a healthy garden routine.

Which plants can I use it on?
It is safe on all plants, including vegetables, fruit, flowers, shrubs and lawns.

What sizes are available?
It comes in 1L and 4L. Both are concentrates, so they make a large volume of diluted tonic, with the 4L offering better value for bigger gardens.

How do I apply it?
Dilute it with water as directed and apply as a foliar spray or soil drench, at planting and regularly through the season.

Where can I buy Seasol in Australia?
It is available online from BPG Supplies in 1L and 4L, with shipping across Australia and local pickup in Bonnyrigg, NSW.