Organic Plant-Health Seaweed Tonic Concentrate
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.
Contains liquid composts that promote good soil structure – looking after your plants above and below ground! Plus, it is safe to use on all plants including natives, seedlings, flowering and fruiting plants.
Directions for Use
Watering Can
Refer to dilution rates table below. Figures based on pre-mixing in a 9litre watering can.
- Fill watering can with water
- Mix required amount of Plant Health Tonic
- Apply evenly over selected application
Hoselink Fertiliser Spray Mixer:
Dilution rates; 450ml of Plant Health covers 202m². *based on foliar application
- Shake well before use
- Flow reducer required – unscrew the bottle and remove the siphon tube, then unscrew brass pin from above selector dial and push into the top of the siphon tube. Reassemble.
- Pour concentrate into Hoselink’s Fertiliser Spray Mixer.
- Select dial (refer to table below) and walk slowly using a sweeping action to apply evenly to selected application.
Plant/ Application Type |
Rate per 9Lt watering can |
Hoselink Spray Mixer Setting |
Application Frequency |
Ferns |
20ml |
1 with flow reducer |
Every 1-2 weeks |
Foliar Application |
20ml |
1 with flow reducer |
Every 1-2 weeks |
New Plantings |
30ml |
1 with flow reducer |
At planting and in 2 weeks |
Vegetables |
30ml |
1 with flow reducer |
Every week |
Annuals |
30ml |
1 with flow reducer |
Every week |
Established Plants |
30ml |
1 with flow reducer |
Every 1-2 weeks |
Trees |
90ml |
5 with flow reducer |
Every 2 weeks |
Lawn |
90ml |
5 with flow reducer |
Every 2 weeks (during growing period) |
Expert Tip: For the ultimate soil boost, use alongside 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 per month for best results. Unlike with 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.