CANNA PK 13/14 Flowering Booster | 250ml, 1L, 5L, 10L

Unlock Maximum Flower Size at the Right Moment

CANNA PK 13/14 is a high-grade phosphorus and potassium booster designed for one job: pushing your plants to produce the biggest, heaviest flowers possible. Apply it at the right time during flowering and the results speak for themselves.

One application to your nutrient reservoir. That's all it takes.

Why Growers Reach for PK 13/14

• 🌸 Bigger, denser flowers — high-concentration P&K hits plants exactly when they need it most
• ⚡ Fast uptake — a special production process keeps phosphorus and potassium in pure, highly available form
• 🌱 Works with every medium — soil, coco, hydro, run-to-waste, recirculating systems, indoors and outdoors
• 💧 Simple to use — one dose to your reservoir, applied once over 3–6 days
• 📈 Pairs perfectly with CANNABOOST — together they supercharge flowering metabolism for even bigger results

What's Inside & Why It Works

Phosphorus (P) is essential during flowering. It strengthens cell formation in flowers and plays a key role in energy transfer throughout the plant. When flowering kicks in, your plant's demand for phosphorus spikes — PK 13/14 meets that demand directly.

Potassium (K) keeps everything moving. It transports water and nutrients through the plant, controls sugar production, and is responsible for the quality and firmness of your flowers. More potassium during bloom = more sugars = bigger, better flowers.

CANNA's special production process combines both elements at very high concentrations, so your plants get the full benefit — fast.

Stack It with CANNABOOST

CANNABOOST boosts your plant's metabolism and amplifies the effect of PK 13/14. Used together during the flowering window, this combination drives more lavish, abundant flowering than either product alone.

How to Use

1. Shake the bottle well before use
2. Add PK 13/14 approximately 3 weeks before harvest
3. Dose: 15ml per 10 litres of water (1:666 dilution)
4. Apply to your nutrient reservoir for 3–6 days

⚠️ Do not over-fertilise — excess nutrients can stress your plants and affect your substrate.

Storage & Safety

• Store sealed in a cool, dark, frost-free place
• Keep out of reach of children

Choose Your Size

• 250ml — try it out or top up a small grow — $30.00
• 1L — great for home growers running regular cycles — $60.00
• 5L — stock up and save per litre — $215.00
• 10L — best value for commercial and large-scale grows — $410.00

Select your size above to add to cart.