Description

Maximise flower size, density, flavour and yield with BioBizz Top Max, a powerful organic bloom stimulator designed to improve nutrient uptake, support flower development, and intensify the aroma, taste, and quality of your final crop.
Ideal for soil, coco, or hydro setups running organic feeding schedules.

read the full product overview here...

BioBizz Top Max is a 100% organic flowering strengthener that uses humic and fulvic acids sourced from ancient leonardite to activate nutrient availability in your substrate, stimulate cell development, and support fuller, heavier flower clusters.
By enhancing the bio-availability of essential minerals and naturally supporting metabolic processes, Top Max helps plants produce denser flowers and fruit with improved flavour and aroma.

Key Features & Benefits

  • Enhances Flower & Fruit Size, Density & Weight: Supports larger, more compact blooms with increased yield potential
  • Improves Nutrient Uptake & Transport: Humic and fulvic acids unlock calcium, iron, magnesium, and trace minerals, enhancing plant metabolism
  • Boosts Aroma, Flavour & Natural Sugars: Stimulates sugar and essential oil production for sweeter, more aromatic final crops
  • 100% Organic & Soil-Friendly: Free from synthetic chemicals and safe for long-term use in organic growing
  • Versatile Use: Effective across soil, coco, and hydro systems, including hand-water, drip, and automated setups
  • Easy to Use with Standard Feeding Schedules: Integrates smoothly with base nutrients or bloom feed for simple application

How to Use

  • Shake well before use
  • Dosage (Flowering Stage): 1 to 4 ml per litre of water, depending on plant stage and desired intensity
  • Application: Use with every watering throughout the flowering period. Increase dose during the last 1 to 2 weeks before harvest for maximum flowering and sugar/essential oil transport
  • Recommended Combinations: Works best alongside a base bloom nutrient and other organic stimulants to maximise yield and quality

Frequently Asked Questions (FAQ)

What does Top Max do that regular bloom fertilisers don’t?
Top Max acts as a bloom stimulator and nutrient transporter, using humic and fulvic acids to unlock and mobilise trace minerals, improving uptake and enabling larger, denser, sweeter flowers.

Is BioBizz Top Max suitable for soil, coco, and hydro systems?
Yes, it is compatible with all major substrates and systems, including soil, coco, hydroponics, and drip irrigation.

When should I start using Top Max?
Start at the beginning of the flowering phase and continue with every watering throughout flowering, increasing dose slightly in the final weeks before harvest if desired.

Is Top Max organic and safe for edible plants?
Yes, it is 100% organic, derived from leonardite-based humic and fulvic acids, and free from synthetic preservatives or harsh chemicals.

Can I use Top Max if I’m not using BioBizz nutrients?
Yes, Top Max works as a bloom stimulator and nutrient-uptake enhancer alongside most organic or mineral fertiliser programmes. For best results, pairing with a dedicated bloom feed is recommended.

BioBizz Top Max provides a natural, organic solution for bigger, denser, tastier, and more aromatic flowers or fruits. By enhancing nutrient uptake and boosting sugar and essential oil production, it maximises yield and quality across soil, coco, and hydro systems, making it a reliable choice for gardeners focused on sustainable, high-quality growing.

Explore the range

See all Additives & Boosters (153)

Not sure which one is right for your setup? Message us on WhatsApp or call 0121 553 7872.

Delivery, returns and FAQs

Will my order arrive in plain packaging?

Yes. Every order is sent in plain, unbranded packaging as standard.

How quickly will my order arrive?

Order standard size items by 12pm on a working day and choose Next working day at checkout, and your order will be with you the next working day. Standard delivery takes 2 to 3 working days.

Bulky items such as grow tents, large fans and 50L bags of soil go by courier in 2 to 3 working days, or on a pallet for very heavy orders. Next day is not available for these, and if your basket includes a bulky item the whole order travels with it.

UK delivery is free on orders of £94.99 or more, except for bulky items. See our delivery page for full prices.

Can I collect from the shop?

Yes. Choose Click & Collect at checkout and pick up for free from our shop at Unit 2 Black Lake, West Bromwich, B70 0PJ. Orders are usually ready within 1 hour.

Can I return an item?

You have 14 days from receiving your order to tell us you want to cancel, then a further 14 days to send it back. Items need to be unopened and in a resaleable condition.

If you change your mind, the return postage is paid by you. If something arrives faulty or damaged, send us photos within 48 hours and we will cover the cost of putting it right. Full details are in our refund policy.

Do you price match?

Yes. If you find the BioBizz Top Max Organic Bloom Stimulator cheaper at another UK retailer, use the Price Match button on this page. We usually reply within one business day.

Need help choosing?

Speak to our team. Call us on 0121 553 7872, message us on WhatsApp, or visit the shop in West Bromwich.

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