Superthrive – The Original Vitamin Solution for Plants
Trusted by growers since 1940, Superthrive is the go-to plant supplement for healthier, stronger growth. Packed with vitamins and kelp-based nutrients, it helps plants thrive during transplanting, stress, and everyday growth. Whether you're growing in soil, coco, or hydro, Superthrive gives your plants the boost they need.
Please note: The 9.4L bottle is purchased to order, so extended lead times will apply.
Why Choose Superthrive?
- Reduces transplant shock and encourages rapid root development
- Revives stressed plants affected by heat, cold, drought, or overwatering
- Promotes vigorous growth and enhances nutrient uptake
- Compatible with all grow media and nutrient regimes
- Highly concentrated – a little goes a long way
How Superthrive Works
Superthrive is a non-toxic, vitamin-rich solution that supplements your regular feeding schedule. It contains vitamin B1 and kelp extracts that stimulate natural hormone production, supporting root strength and overall plant vitality. It's not a fertilizer but works alongside your base nutrients to improve results.
When to Use Superthrive
Use Superthrive during:
- Transplanting – to reduce shock and encourage root growth
- Propagation – to boost seedling and cutting development
- Stress recovery – after environmental stress or pest issues
- General maintenance – to support ongoing plant health
How to Use Superthrive
Superthrive is highly concentrated. Typical usage rates:
- General maintenance: 1 drop per 4 litres of water
- Transplanting or stressed plants: 1–2ml per 4 litres
- Seed soak: 3ml per 4 litres, soak for 15 minutes
- Foliar spray: Same dilution as above, apply to both sides of leaves
Always mix fresh and use within the same day. Avoid overuse – more is not better.
Who’s Superthrive For?
Superthrive is ideal for growers who want to:
- Give seedlings and cuttings a strong start
- Reduce transplant shock in young or mature plants
- Help plants recover from environmental stress
- Boost overall plant health and resilience
Need Help with Your Feed Plan?
Our team is here to help. Whether you're new to Superthrive or looking to fine-tune your feeding schedule, get in touch for expert advice.
We're the kings of stealth shipping! All of our orders are sent out in plain mailer bags or boxes with no mention of the company name for ultimate discretion.
Mainland UK Next Day Shipping will be with you the next day if ordered before 2pm. Our standard shipping is dispatched within 4 days.
We always aim for make sure our customers love our products, but if you do need to return an order, our 24/7 returns portal makes it incredibly easy. Just visit onestopgrowshop.co.uk/returns
Yes, we ship all over the world. Shipping costs will apply, and will be added at checkout. If you have any issues with shipping to your particular country, get in touch with customerservices@onestopgrowshop.co.uk and we'll create you a bespoke shipping quote.