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Grotek Monster Bloom 2.5kg

Regular price £152.96 £169.95 | Save £16.99 (9% off)
Tax included. Shipping calculated at checkout.
SKU: 3580
Spend £50.00 more for free delivery (shipping surcharges still apply)

Grotek Monster Bloom 2.5kg

Grotek Monster Bloom 2.5kg


Achieve explosive flowering and fruiting with Grotek Monster Bloom 2.5kg, a highly concentrated bloom booster designed for both indoor and outdoor growers. This powerful formula provides essential nutrients to support maximum bud development and fruit production, ensuring your plants reach their full potential during the flowering stage.

Derived from monopotassium phosphate, it's perfect for a variety of flowering plants, Grotek Monster Bloom offers the ultimate solution for bountiful and high-quality harvests.

  • Maximises Bud Development: Delivers a potent blend of nutrients that promote larger, denser, and more vibrant blooms.
  • Boosts Flowering and Fruiting: Enhances the production of flowers and fruits, leading to increased yields and more abundant harvests.
  • Improves Plant Strength: Provides essential phosphorus and potassium to support strong, healthy plant structure and resilience.
  • Enhances Quality: Ensures buds and fruits develop rich colours, strong aromas, and superior flavours.
  • Highly Concentrated Formula: Offers excellent value and long-lasting supply, making it a cost-effective choice for serious growers.
  • Easy to Use: Simple to mix and apply, fitting seamlessly into your regular feeding schedule.
  • Versatile Application: Suitable for all growing media, including soil, hydroponics, and coco coir.

Boost your garden's flowering potential with Grotek Monster Bloom 2.5kg. Whether you’re a novice or an experienced gardener, this powerful bloom booster ensures your plants achieve impressive growth and high-quality yields, leading to a more productive and successful gardening experience.

Start applying when flower buds are forming (often around week 3 of the flowering phase) and use with every feed at a rate of 0.1g per litre of nutrient solution - stop using a minimum of 1 week before harvest of crops/until the crop flushing phase. Monster Bloom is classed as a strong PK additive and as such no other PK products should be used at the same time.

NPK - 0-50-30

Available in 2.5kg tubs.


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Delivery Information

Most orders are shipped within 24 hours.

Orders are currently shipped with Parcelforce (Express 24 service for standard and heavy/bulky items) or DPD Local (Premium next-day), a signature will be required on delivery. We have been shipping orders for 15 years and our courier choices are subject to change as service levels fluctuate.

All orders are shipped on a next day courier service – you will be informed via email or SMS the evening your order leaves us so you know to expect it the next day. On the morning of delivery you will get another SMS or email informing you of the expected delivery time.

If you have any questions on delivery please get in touch.

As the website calculates some charges by weight it is possible that shipping is not calculated correctly. We reserve the right to get in touch in these circumstances we will request the additional amount or offer to refund the order.

UK Delivery

Standard delivery to the UK Mainland addresses (excluding Scottish Highlands & Islands, offshore and N.I.) is charged at a flat rate of just £5.95 per order or £7.95 (for the premium next-day service), standard delivery (with Parcelforce) is free* for orders over £50.

*Large and/or heavy items attact a surcharge from our courier - shipping surcharges are calculated per item and are applied regardless of order value.

Non-UK mainland destinations are charged by weight.

International Delivery

Coming soon…

Collect in Store (Bristol)

We now offer a 'collect in store' option, which allows you to pay for goods online and collect from our Bristol store at time that suits you (within our opening hours).

The process is simple:

  1. place your order and pay online, select 'Pick Up' at checkout;
  2. receive an email confirming that the order is ready for collection;
  3. bring/show your confirmation email and photo ID to collect your order.


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