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Helpful additions to the 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.
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.
Hoselink Fertiliser Spray Mixer:
Dilution rates; 450ml of Plant Health covers 202m². *based on foliar 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 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.
Typical Analysis
Contains 0.5% Potassium Hydroxide
No other reportable quantities
I have been using this product on my garden for a few years now and highly recommend it.
My indoor plants love your seaweed tonic, they are thriving and produce many more leaves.
Plants loves this, can see a big improvement in the growth and overall plant health
Very satisfied great products
My pot plants love it. Had no problems with it being too strong for ferns.
I have added this to the other fertiliser products you sell I purchased the fertiliser spray bottle which is terrific to use for all the garden applications I will need to purchase a flow reducer to replace the on e I lost. I am very happy with the hoselink products ..
Have been using these products for a couple of weeks and can see a difference already in the health of the vegetable plants. I have just seeded my summer vegetables and I used the seaweed tonic to soak the punnets with seeds for their initial watering. Hopefully this will give them a good kickstart. Ordering process and delivery was without issue and will definitely be ordering again.
Add some of this to my normal fertilizing regime & plants look so healthy & productive (veggies). I feel this tonic improves the soil, therefore plants benefit.