Aptus Bloomboost, 20 L

Push Flower Size, Fiber Mass, and Quality Through the Full Reproductive Phase

Potassium, sulfur, and boron each play a specific role during the fruiting and flowering phases — but most standard bloom formulas don't supply them in the precise ratios or at the specific times the plant needs them.

Bloomboost delivers these three elements together throughout the entirety of the reproductive cycle, from week 2 through week 8 of flowering, at dosages that escalate incrementally to match the plant's increasing demand as it moves through development.

The result is increased flower vigor, heightened aromatic complexity, and larger overall harvests — without the mineral imbalances that come from relying on bulk products that blend high potassium and phosphorus in fixed ratios.

Key Features & Benefits

• Potassium for flower bulk and vigor — drives cell expansion and overall flower development throughout the reproductive phase.
• Sulfur for quality and aromatic complexity — supports the metabolic pathways behind flavor and aroma development in the final product.
• Boron for fruit and flower set — plays a critical role in the formation and structure of fruit and flowers from the start of the reproductive phase.
• Week 2 through week 8 timeline — applied throughout the entire flowering period with escalating dosage as the plant develops.
• Escalating dosage schedule — starts at 4 ml per 5 gallons from week 2 and increases each week, with up to 1 ml per 2.5 liters for increased effect.
• Sized from 1 to 20 liters — lets growers match the bottle to the scale of their operation, from single-room gardens to commercial facilities.

Who Should Use Aptus Bloomboost

Growers running the full flowering phase who want potassium, sulfur, and boron delivered in precise, escalating amounts rather than a fixed-ratio bloom supplement — with the 20 L size matched to the scale of the garden.

Bloomboost's Place in the Aptus Flowering Program

Bloomboost runs alongside Peakboost (weeks 2–6) and Finaleboost (weeks 5–8) throughout the full flowering cycle. While Peakboost isolates phosphorus and Finaleboost isolates potassium for end-ripening, Bloomboost delivers the K-S-B stack continuously from week 2 through week 8 to support flower development at every stage.

Frequently Asked Questions

What makes potassium, sulfur, and boron important together in flower?

Potassium drives cell expansion and flower bulk; sulfur supports quality and aromatic development; boron is essential for fruit and flower set. Together they address the core structural and qualitative demands of the reproductive phase.

When does Bloomboost overlap with Peakboost in the Aptus program?

Bloomboost runs from week 2 through week 8. Peakboost covers weeks 2–6. They overlap during those early and middle bloom weeks, with each product targeting distinct mineral categories — Bloomboost on K-S-B and Peakboost on isolated phosphorus.

What is the correct dosage for Bloomboost?

Start at 4 ml per 5 gallons from week 2 and increase each week up to 8 ml per 5 gallons by week 8. For increased effect, use up to 1 ml per 2.5 liters — but verify your active PPM allows it before increasing.

Can I use Bloomboost without the rest of the Aptus line?

Yes — Bloomboost can be added to any bloom feeding program as a targeted K-S-B supplement, though it's designed to work alongside the full Aptus system including Peakboost and Finaleboost.