Hoselink’s Plant-Health Seaweed Tonic Concentrate is made from a combination of kelp seaweed and soluble potassium humate, which helps plants to grow more vigorously, enriches the soil and stimulates flowering and fruiting.

Packed with minerals and nutrients, seaweed is high in complex carbohydrates, essential for assisting with healthy plant growth and defending plants from soil-borne diseases. Though rich with minerals, the Seaweed Tonic has small quantities of such nutrients, making this formula safe and gentle enough for use on delicate plants and seedlings, as well as for regular plant health maintenance.

The fast-acting formula works effectively, whether applied directly to the soil or to the foliage, as plants can absorb food directly through their leaves. Seaweed Tonic is suitable for use on both indoor and outdoor plants. 

It contains liquid composts that promote good soil structure – looking after your plants above and below ground! Plus, it is safe for all plants, including natives, seedlings, and flowering and fruiting plants.

Directions for Use

Watering Can

Refer to the dilution rates table below. Figures based on pre-mixing in a 9litre watering can.

1. Fill the watering can with water
2. Mix the required amount of Plant Health Tonic
3. Apply evenly over the selected application

Hoselink Fertiliser Spray Mixer:

Dilution rates; 450ml of Plant Health covers 202m². *based on foliar application

1. Shake well before use
2. Flow reducer required - unscrew the bottle and remove the siphon tube, unscrew the brass pin from above the selector dial and push it into the top of the siphon tube. Reassemble.
3. Pour concentrate into Hoselink’s Fertiliser Spray Mixer.
4. Select the dial (refer to the table below) and walk slowly using a sweeping action to apply evenly to the selected application.

Expert Tip: For the ultimate soil boost, use the Hoselink Super Grow Garden Fertiliser, applying formulas 10-14 days apart.

Once diluted, fertiliser is pet and child friendly. 

Proudly made in Australia.

When should I use Seaweed Tonic?

We recommend using our Seaweed Tonic 2-3 times monthly for the best results. Unlike other fertilisers, Seaweed Tonic can be safely sprayed on your garden throughout the year. 

For more on how to use Seaweed Tonic, read our guide on the Backyard Living blog here.