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House & Garden Top Booster | 1-Week PK Flowering Additive
Product Overview
Enhance your final flowering phase with House & Garden Top Booster, a concentrated PK (phosphorus and potassium) formulation engineered to direct energy to your blooms and maximize yield.
Key Benefits
Focuses energy to bloom zones, reducing vegetative growth
Strengthens plant structure and resilience
Boosts nutrient uptake, especially P & K
Improves aroma and harvest quality, with richer yields
Usage Instructions
Dilution: 5.7 mL per gallon / ~1.5 mL per liter
Timing: Apply for 3–4 days approximately 3–4 weeks before harvest
Preparation: Add base nutrients first, then Top Booster; adjust pH/EC accordingly
Compatibility & Formula Details
Safe for soil and hydroponic systems
Contains potassium hydroxide and phosphoric acid anhydride; includes EDDHA-Fe (iron) to prevent chlorosis (on some formulations)
Provides Available Phosphate (0.7%) & **Soluble Potash (0.6%)**
Storage & Quality
Store between 45–85 °F (7–29 °C)
Use within one year after opening for peak effectiveness
Complementary Products
Enhances results when followed by Bud-XL, Shooting Powder, or Top Shooter
Specifications & Item Specifics
Brand: House & Garden
Form: Liquid PK additive
Target Growth Stage: Final flowering (3–4 weeks before harvest)
Compatibility: Soil & hydroponics
Active Ingredients: Phosphorus & potassium
Extra Component: EDDHA-Fe iron (selected variants)
Storage Range: 7–29 °C (45–85 °F)
Use-Within Period: 1 year post-opening
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.