PK by Bloom – Week 5 Flower Booster for Weight & Ripening

🌿 Bulk Up & Bloom Out

PK by Bloom is your go-to mid-flower bulker, hitting hard in week 5 to support serious fruit swelling and maturity. This potent 0–19.5–21 formula supplies phosphorus and potassium right when your plants need it most - during peak flower formation.

If your grow's been all show, now's the time to load up on that harvest weight.

🔹 Key Features

• ✨ Precise 0–19.5–21 PK formula for ripening fruits and flowers

• 🌰 Increases size, density & final weight of yields

• ⏳ Applied during week 5 of flower for peak effectiveness

• ✅ Compatible with all mediums: soil, coco, hydro

• ⚖️ Accelerates plant maturation for tighter timelines

• 🪧 No need to reduce base nutrients

⚛️ How It Works

During the fifth week of flower, plants require an elevated intake of phosphorus and potassium to finish building their buds. PK by Bloom steps in with a calibrated hit of P (19.5%) and K (21%), enhancing nutrient uptake and supporting vigorous flower swelling, hardness, and ripening.

Phosphorus boosts flowering enzymes and metabolic speed, while potassium improves nutrient transport, cell wall strength, and aroma/flavour development.

✂️ Application Rate

• Add at 1ml per litre of nutrient solution

• Apply during week 5 of the flowering cycle

📚 Where PK Fits in the Bloom Program

• PRE – Weeks 2–3 of veg

• ULTRA – Weeks 1–2 of flower

• PHAT – Weeks 2–4 of flower

• PK – Week 5 of flower

• OOZE – Week 5 to flush

• FINAL – Last 2 weeks + flush

🌟 The Grow Guys Tips

• Use PK right after finishing your PHAT cycle to finish strong

• Keep it simple: no need to drop your base nutes

• Don't forget to check your EC levels to avoid overfeeding

• Some variation in colour or consistency is normal due to organic ingredients

🌸 Finish With A Bang

PK by Bloom ensures your fifth week of flower is all about weight gain, maturity, and dense results.

👉 Get bulking with PK by Bloom – Shop Now at The Grow Guys!