Enhance Flower Growth with House & Garden Top Booster

House & Garden Top Booster is a potent flowering stimulator that achieves remarkable results by deceiving your plant into sensing drought conditions, stimulating the development of flowers and enhancing the overall size and quality of blooms. This powerful formula, based on PK 13-14, also includes iron (Eddha-Fe) to strengthen the plant's frame and promote the absorption of nutrients stored in the leaves.

Features and Benefits

  • Powerful flowering stimulator: Kick-starts the late bloom process, increasing flower size and reducing the length of the flowering cycle
  • Iron (Eddha-Fe) additive: Allows for maximum nutrient absorption and helps to strengthen your plants
  • Based on PK 13-14: Includes essential elements for optimal flowering development
  • Easy to use: Adds a simple step to your nutrient feeding schedule for 3 to 4 days
  • Proven results: Used by Dutch growers to consistently break records in flower yield and quality

How to Use

  1. Add House & Garden Top Booster to your nutrient feeding schedule for a duration of 3 to 4 days.
  2. Resume your regular nutrient feeding schedule after using Top Booster.
  3. For maximum yield, use Top Booster 4 weeks before harvest.
  4. Combine Top Booster with House & Garden Bud XL for best results and enhanced flower development.

Aqua Gardening Suggests These are Best For

House & Garden Top Booster is ideal for growers seeking to enhance the size, quality, and yield of flowers in their plants, particularly during the late bloom process. This powerful flowering stimulator is suitable for serious gardeners looking for proven and effective methods to improve the performance of their plants during the flowering cycle.

House & Garden Nutrient Feed Schedules

House & Garden Classic Nutrient Feed Schedule - Download PDF
House & Garden Pro Nutrient Feed Schedule - Download PDF


How does House & Garden Top Booster work to stimulate flowering in plants?

House & Garden Top Booster deceives your plant into sensing drought conditions, signaling it to enter the last phase of its life cycle, and begin forming flowers. This results in increased flower size and a shortened flowering cycle.

When should I add Top Booster to my nutrient feeding schedule?

Top Booster should be added to the nutrient feeding schedule for 3 to 4 days, followed by a return to the regular feeding schedule. This helps trigger the late bloom phase of the plant, enhancing flower growth.

What elements are present in Top Booster, and what are their benefits?

Top Booster contains a blend of pure potassium and phosphorus, along with iron (Eddha-Fe). Potassium assists in the early flowering stages, while phosphorus supports proper flower development. The Eddha-Fe additive enables maximum nutrient absorption and helps leach nutrients from the leaves, resulting in larger flowers.

How do I use House & Garden Top Booster to achieve the best results?

To maximise yield increases, use Top Booster 4 weeks before harvest for 3-4 days. For optimal results, it is recommended to use Top Booster in conjunction with House & Garden Bud XL.

What is the recommended mix rate for House & Garden Top Booster?

The mix rate for Top Booster is 1.5ml per 1L of water, as the product is blended to the highest standards and concentrations.

Why is the addition of Eddha-Fe in Top Booster notable, and what makes it stand out from other flowering boosters?

The Eddha-Fe addition makes House & Garden Top Booster a unique and effective formula, as it enhances nutrient absorption and helps to deplete the plant's nutrient reserves, resulting in larger flowers. This gives Top Booster an edge over other products in the market.

Still Unsure if This Product is Right for You?

  • Submit a question via the Reviews & Questions tab on this page, and our team will respond to you
  • Login to check your Aqua Gardening Member Price
  • Book a free Consult with the Aqua Gardening team here
  • Still Overwhelmed? Start your Gardening Journey with a free eBook here

(SKU: 125713)

Shipping Calculator

Enter the quantity of product and your Australian suburb name to calculate the shipping costs for multiples of this item only. You can calculate the shipping costs for your entire order, including international orders, on the Cart Page.

Free Shipping Eligibility

Aqua Gardening offers free shipping on most orders above $249 that are not bulky items.  Once you place all the items you wish to buy in the cart, the combined shipping price will be shown in the cart, including Free Shipping if you are eligible. For full details please see our free shipping eligibility here.

Delivery Information

Back Order products

These are products we usually carry in stock but are temporary out of stock. These products will be back in stock within a few days. We can send you an email notification when they are back in stock if you click on the “Notify me when back in stock” link. See the full details here.

Click & Collect Only products

These products can only be collected from our Brisbane showroom as we can not ship them. If you place any of these products in your cart, you will only see the Click & Collect option at the checkout.

Fast Dispatch products

These are products that we have in stock in our Brisbane showroom, and they are available for immediate Click & Collect or Shipping. Keep in mind that if you have a product which is not listed as a Fast Dispatch product in your cart, there might be a delay on your order. See the full details here.

Special Order products

Special Order products are products that we do not regularly stock. These products will be ordered specially for you, or dispatched directly to you from our supplier. See the full details here.

Ship-To-Store products

Products marked with ship-to-store can still be shipped to us to collect in-store! Simply check out with the shipping address: 3/4 Billabong Street, Stafford, QLD, 4053. Once your order arrives, we’ll email you to let you know that it is ready to collect.


Limited Warranty - This product has been stored in a controlled environment to ensure you will receive the best quality product possible. Due to this reason this product is sold on a strict no refund or return policy, unless it falls under a warranty claim.


60 Day Returns - Not available for this product, please contact us if you have any issues. More details...