Athena PK — Professional Mid-Late Flowering Booster

Athena PK — Professional Mid-Late Flowering BoosterAthena PK Professional Mid to Late Flowering PK Booster A balanced bloom boosting complement to Athena's Bloom fertilizers clean liquid booster designed for mid to late flowering phase supplementation. Unlike many PK boosters that pile on far too much phosphorus and potassium (which can lock out calcium and other nutrients), Athena PK provides the additional P and K high yielding plants actually need for maximal production, without overdoing it. Why

Athena PK — Professional Mid-to-Late Flowering PK Booster

A balanced bloom-boosting complement to Athena's Bloom fertilizers — clean liquid booster designed for mid-to-late flowering phase supplementation. Unlike many PK boosters that pile on far too much phosphorus and potassium (which can lock out calcium and other nutrients), Athena PK provides the additional P and K high-yielding plants actually need for maximal production, without overdoing it.

Why growers choose Athena PK:

• Balanced PK formulation — not overloaded like many aggressive PK boosters
• Prevents calcium lockout — many PK boosters over-apply, causing serious deficiencies
• Low nitrogen — appropriate for flowering-phase use where N demand is reduced
• Additional P and K for high-yielding plants — gives flowers the nutrients peak demand requires
• Mid-to-late flowering specific — targeted at the window where PK boosting delivers
• Professional-grade Athena quality — consistent batch performance
• Clean liquid formulation — mixes cleanly, no sediment or precipitation

Who it's not for:

Use alongside Athena Bloom A&B or Pro Bloom — Athena PK is a supplement, not a standalone. For growers running other base nutrient brands, Athena PK still works but integrates best with Athena's own programme. For budget alternatives, Buddha's Tree PK 9-18, Monkey PK 9-18, or Shogun PK Warrior all deliver comparable PK boosting at different price points. Stop 7-10 days before harvest.

See it running in our Stone shop. Drop by Unit 24, Emerald Way, Stone Business Park (ST15 0SR) to see this fixture set up, or call us on 01785 556355 (Mon–Fri, 10am–5pm) to talk through whether it's the right choice for your tent size and grow style. In stock now with 24hr UK dispatch, or choose click & collect at checkout.