HOUSE & GARDEN Top Booster – Premium PK Flowering Additive for Maximum Bud Development
House & Garden Top Booster is a powerful PK additive formulated to dramatically increase flower formation, bud size, and final yield quality. Enriched with highly available phosphorus (P) and potassium (K), plus added iron for healthy foliage, Top Booster provides the essential nutrients plants demand during peak bloom. Designed to be used alongside the rest of the House & Garden range, it delivers noticeable improvements in flower density, weight, and structure.
Please Note: The 5L bottles are purchase-to-order items.
Key Benefits
- Powerful PK formulation; provides essential phosphorus and potassium to boost flowering performance
- Increases flower quantity and size; promotes more bud sites and heavier yields
- Improves quality and aroma; enhances nutrient transport and energy conversion for denser, more resinous flowers
- Added iron for leaf health; keeps foliage green and efficient during late bloom
- Highly concentrated; economical and easy to mix with base nutrients
- Compatible with all media; use in soil, coco, and hydroponic systems
Why You Need House & Garden Top Booster
During the flowering phase, plants demand higher levels of phosphorus and potassium to support bud formation, cell division, and fruiting. House & Garden Top Booster delivers these key nutrients in a fully soluble form that’s quickly absorbed by the root zone, ensuring no deficiencies during peak bloom. The result is more flowering sites, denser buds, and a higher-quality harvest overall.
By supplementing with Top Booster, you’ll maintain vigorous plant health and maximise photosynthesis during the most demanding part of the grow cycle. It’s the perfect complement to House & Garden base nutrients and bloom enhancers like Bud-XL and Top Shooter.
How House & Garden Top Booster Works
Top Booster fuels the critical reproductive phase by providing a precise balance of phosphorus (P) and potassium (K), which are essential for flower development and energy transport. The formula also includes iron (Fe), supporting chlorophyll production and overall plant vitality while flowers bulk up. This balanced blend increases bud count, improves flower density, and helps your plants finish stronger with richer aromas and greater resin content.
How to Use House & Garden Top Booster
- Shake well: Always shake before use to ensure an even nutrient blend.
- Primary application: Add 1.5ml per litre of water for 3–4 days, around three weeks before harvest.
- Optional “trickling method”: For improved results, apply at 0.33ml per litre from the start of budding (week 2–3 of flower) until the final flush. This extended feed ensures consistent access to vital PK elements for heavier blooms.
- Mixing: Always add nutrients one at a time. Stir well between additions and never mix concentrates directly together.
- Flush: Discontinue use at the start of your final flush period.
Tech Specs
- NPK Ratio: 0–13–14
- Use Stage: Flowering phase (weeks 2–6)
- Dosage Rate: 1.5ml/L for 3–4 days before harvest; or 0.33ml/L for continuous bloom feeding
- Media Compatibility: Soil, coco, and hydro systems
- Formulation: Liquid PK additive with added iron
- Available Sizes: 250ml, 500ml, 1L, 5L
Why Phosphorus and Potassium Matter
Phosphorus (P) promotes energy transfer within the plant, supporting strong flower formation and root growth. Potassium (K) enhances nutrient movement, enzyme activation, and sugar production — leading to thicker, denser flowers with improved colour and flavour. Together, these two macronutrients drive the explosive growth and development that defines a successful bloom stage.
Pair With
- House & Garden Bud-XL – enhances sugar transport and boosts flower sweetness
- House & Garden Top Shooter – powerful bloom finisher for maximum flower expansion
- Roots Excelurator Gold or Silver – strengthen root systems early for maximum uptake
Top Tip: Use Top Booster as directed by House & Garden, but extend with the 0.33ml/L “trickling method” from early bloom — this ensures a steady supply of PK for longer, resulting in heavier, more resinous flowers and higher-quality harvests.