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Canna 20% Phosphorus, 1 Litre – Premium Mononutrient for Explosive Flowering

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Canna 20% Phosphorus is your secret weapon for explosive flowering. This high-purity mononutrient directly tackles P deficiencies, supercharging bud development and resin production for heavier, denser yields. Its liquid form ensures rapid plant uptake, making it the go-to solution for growers who refuse to settle for average harvests.
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Canna 20% Phosphorus is the elite, targeted nutrient solution designed to unlock your cannabis plants' full flowering potential. This isn't just another additive; it's a precision tool for growers who demand maximum resin production, tighter bud structure, and significantly increased final weight. Crafted by Canna with the same rigorous standards as their base nutrients, it integrates seamlessly into your feeding regimen to correct deficiencies and push your garden beyond its limits.

Ever feel like your flowering plants are stuck in second gear, producing fluffy buds instead of rock-hard colas? That sluggish bloom phase and underwhelming bud density can be incredibly frustrating, especially after weeks of careful vegging. It often means wasted time, light, and nutrients for a harvest that doesn't match your effort or ambition.

This lack of explosive flowering directly translates to lighter jars and less potent smoke. You're left wondering what went wrong, while your plants clearly signal a need for more phosphorus—the very element that drives energy transfer, root development, and most importantly, flower formation. Ignoring this need is like trying to win a race with half a tank of gas.

The solution is precise, powerful, and ready to use: Canna 20% Phosphorus. This concentrated mononutrient delivers bioavailable phosphorus directly to your plants' roots, acting as a turbocharger for the flowering stage. It tells your plants, "It's go time," triggering a metabolic shift that prioritizes fat, resinous bud production over vegetative growth.

Transform Your Flowering Phase into a Powerhouse

Imagine flipping to 12/12 and watching your plants respond not with hesitation, but with an immediate surge of floral development. That's the power of dialed-in phosphorus. This Canna formula ensures your ladies have the exact building blocks they need to construct dense, complex bud sites from day one of bloom. You'll see stems thicken, pistils multiply, and the overall architecture of your flowers become more robust and substantial. It's the difference between a good run and a legendary one.

How to Use Canna 20% Phosphorus for Maximum Impact

Integrating this powerful tool into your routine is straightforward, but precision is key to avoiding nutrient lockout.

  1. Identify the Need: Use during the flowering stage, especially from weeks 2-6, or at the first sign of phosphorus deficiency (dark green or purple leaves, slowed growth).
  2. Prepare Your Solution: Add 1-2 ml of Canna 20% Phosphorus per litre of your nutrient solution. Always add it to water first, before other nutrients, to ensure proper mixing.
  3. pH is Paramount: After mixing all your nutrients, always check and adjust the pH of your final solution. For soil, aim for 6.0-6.5; for coco or hydro, target 5.5-6.2.
  4. Feed as Normal: Apply the fortified solution to your plants as part of your regular watering or feeding schedule.
  5. Monitor and Adjust: Observe your plants closely. Strong, vigorous flowering with no signs of burn means you're on point. If you notice tip burn or other stress, slightly reduce the dosage.
  6. Avoid Common Mistakes: Never overdose. More is not better and can lock out calcium and potassium. Always use with a balanced base nutrient; this is a supplement, not a complete food.
  7. Flush for Finish: As always, perform a proper flush with plain, pH-adjusted water for the final 1-2 weeks before harvest to ensure clean, smooth smoke.

Key Advantages and Benefits of Canna 20% Phosphorus

  • High-Purity Formula (20% P2O5): Provides a massive, directly available dose of phosphorus, which supercharges the plant's energy systems during the critical flowering phase, leading to explosive bud development.
  • 100% Water-Soluble Liquid: This form ensures immediate uptake by the root system, allowing you to correct deficiencies or boost flowering within days, not weeks, saving your crop from stalled growth.
  • Seamless Canna Compatibility: Designed to work flawlessly with all Canna base nutrients (Terra, Aqua, Coco, Hydro), which eliminates guesswork and nutrient conflicts, giving you peace of mind and predictable results.
  • Versatile for All Mediums: Whether you grow in soil, coco, or hydroponic systems like Rockwool, this formula performs, adapting to your preferred method without requiring special adjustments.
  • Precision Deficiency Correction: Acts as a targeted remedy for tell-tale signs of P shortage (purpling stems, dark leaves), quickly restoring plant health and getting your bloom phase back on track.
  • Stimulates Secondary Metabolites: By optimizing phosphorus levels, you enhance the production of terpenes and flavonoids, which means not just bigger buds, but also more aromatic and flavorful ones.
  • Promotes Stronger Root Development: A healthy root zone is the foundation of flowering. Adequate phosphorus supports root growth, which improves overall nutrient uptake and plant stability during the heavy bud-load of late flower.
  • Trusted Canna Quality: Manufactured under strict controls, you get consistent, reliable performance bottle after bottle, a must for growers who depend on repeatable success.

Care, Storage, and Safety

Store your bottle of Canna 20% Phosphorus in a cool, dark place, away from direct sunlight and freezing temperatures. Keep the lid tightly sealed to prevent contamination or evaporation. Always use clean measuring equipment to avoid cross-contamination with other nutrients. As with all concentrated minerals, avoid contact with eyes and skin, and keep out of reach of children and pets. If contact occurs, rinse thoroughly with water.

Frequently Asked Questions

When should I start using Canna 20% Phosphorus?

Begin application at the onset of the flowering stage (when you switch lights to 12/12) and continue through the peak blooming weeks, typically weeks 2 through 6. It can also be used as a corrective measure anytime a phosphorus deficiency is spotted.

Can I use it with non-Canna nutrients?

Yes, it is compatible with most mineral-based nutrient lines. However, for optimal results and to avoid potential interactions, using it within the Canna ecosystem is recommended. Always do a small test mix first if combining with other brands.

What are the signs of a phosphorus deficiency?

Look for dark green or bluish-green leaves, sometimes with a purple or red hue on the stems and leaf undersides. Growth may slow dramatically, and older leaves can develop dark, necrotic spots. In flowering, bud development will be poor and airy.

Is it suitable for organic growing?

No. Canna 20% Phosphorus is a mineral-based nutrient. If you are following a strictly organic regimen, you would need to seek phosphorus from organic sources like bat guano or bone meal.

How does it differ from a PK booster?

A PK booster (like Canna PK 13/14) provides a balanced shot of both Phosphorus and Potassium for a short period. This mononutrient is pure phosphorus, allowing for more precise, longer-term control over your P levels, especially useful for correcting a specific deficiency.

Personal Experience of Pevgrow's CEO (Alan)

Let me be straight with you: in my years of running grows, both personal and commercial, phosphorus management is what separates the hobbyists from the pros. I've tried countless bloom boosters, but when I need raw, unadulterated P to fix a problem or push a strain known for light yields, I reach for Canna's 20% Phosphorus. Its purity is unmatched. I remember a batch of a finicky Sativa that just wouldn't bulk up in week 4. A slight deficiency had set in. Adding 1.5ml/L of this to my regular Coco A&B feed for two waterings turned everything around. The stems stopped purpling, and the buds literally started swelling daily. The precision it offers lets me tailor the feed to each strain's needs—some heavy feeders love a steady 1ml throughout flower, while others only need a mid-flower kick. My pro-tip? Always check your runoff EC when using any strong additive. This stuff is potent, and you don't want to oversalt your medium. Pair it with a good potassium source later in flower, and you'll watch your plants build buds with a density you didn't think was possible. It's a staple in my nutrient arsenal for one reason: it works, every single time.

Cultivation phase: Cultivation phase Flowering
Properties: Properties Mononutrients
Brands: Brands Canna


  • Is the shipping discreet?

    Yes, the shipment is 100% discreet, no one will know what you have bought, also the sender is SITE OF SHOPS ONLINE.

  • Do you ship worldwide?

    Yes, we ship to almost every country in the world although you need to know the current legislation in your country to make sure that you do not break any regulations with the germination of the seeds.

    UK: 3-4 days (express)
    USA: 4-5 days (express)
    Australia: 4-5 days (express)
    Japan: 4-5 days (express)
    Canada: 4-5 days (express)
    South Africa: 4-5 days (express)
    New Zealand: 5-7 days (express)
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    The customer must be informed about the laws of their country regarding seeds or other products that may be purchased on our website, the possession of which may constitute a criminal offence in the country of receipt.

    We cannot be made responsible for the wrong use that some people decide to give to the seeds, so please don't act against your national laws.

    Due to problems with customs you can check here for restrictions to certain countries.

  • What payment methods and currencies do you accept?

    We accept the following payment methods: Bank transfer, Cryptocurrencies, cash, credit and debit cards and cash on delivery (Spain, Belgium, France, Italy, Portugal).

    You can change the currency on the top right to know the price of the products in your local currency and of course pay this way.

  • How long does it take to ship my order?

    In 24/48 hours we will ship your order.

  • Are the seeds guaranteed to germinate?

    If you live in a country where the cultivation of cannabis is legal and you decide to plant the seeds, it is good that you know that all the seeds that we commercialize have germination guarantee.

    If you germinate with the method of paper napkins and you have followed all the steps that we indicate here, you will only have to return us the seeds not germinated in their original packaging and when we receive them we will proceed to the change.

    Then we take care of requesting the return to the seed bank, we do not transfer this responsibility and time to our customers.

  • What if I receive a bad or damaged product?

    If you receive a broken product due to transport, you have to notify us within 24 hours for insurance coverage, always contact us as soon as possible and we will fix the problem!

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