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Plagron PK 13-14 is your secret weapon for turning good harvests into legendary ones—this mineral bloom booster floods your plants with extra phosphorus and potassium exactly when they need it most, delivering dense, heavy, resin-drenched buds that stand tall and proud.
You’ve dialed in your light, your water, your base nutrients—even your training techniques. But when harvest time comes, your flowers just don’t feel as solid as they should. They’re airy, lack that frosty sparkle, and don’t carry the weight you were hoping for. You’re putting in the work, but your yields aren’t matching your effort.
Without a targeted PK boost, your plants might start flowering strong but fizzle out mid-cycle. You’re left with underdeveloped colas, weak trichome production, and a harvest that feels more like a tease than a triumph. That gap between potential and payoff? It’s not your fault—it’s just missing the right catalyst.
Enter Plagron PK 13-14—the no-nonsense, high-impact bloom booster trusted by experienced growers to lock in maximum yield. With a clean 0-13-14 NPK ratio, it delivers a powerful surge of phosphorus and potassium from week 4 of flowering, accelerating bud development, tightening structure, and flooding your flowers with sticky resin. Just mix 2ml per liter into your feed, and let your plants do the rest.
While other bloom boosters overpromise and underdeliver, PK 13-14 sticks to the essentials. No flashy marketing, no mystery ingredients—just pure, concentrated power that works across any grow medium or nutrient system. Whether you're running coco, hydro, or soil, this additive integrates seamlessly and delivers visible results: thicker stems, tighter flowers, and a trichome layer so dense it looks like snowfall.
Whether you're chasing record-breaking yields or just want consistently solid harvests, PK 13-14 is your go-to when quality matters. It’s ideal for:
Shake the bottle well, then add up to 2ml of PK 13-14 per liter of water. After that, add your base nutrient and adjust to your target EC and pH (5.5–6.5). Use this mix every time you irrigate, starting in week 4 of flowering. No need to ramp up or down—just stay consistent until the final flush. It’s that simple.
While PK 13-14 is a mineral fertilizer, it can be used alongside organic base nutrients. However, for best results, pair it with mineral or hybrid systems like Cocos A/B or Hydro A/B.
Yes—always monitor and adjust pH (5.5–6.5) and EC when using mineral fertilizers. Tap water varies by region, so fine-tuning ensures optimal nutrient uptake.
Begin in week 4 of the flowering phase. This is when your plants shift from stretch to bud development and need that extra phosphorus and potassium boost.
Absolutely. It works perfectly in coco, hydroponics, and soil-based setups. Just follow the recommended dosage to avoid overfeeding.
Unlike cloudy bloom boosters that can clog systems, PK 13-14 is fully soluble and clear—meaning no residue, no blockages, and smooth delivery every time.
I’ve tested nearly every PK booster on the market—from flashy two-part formulas to organic blends that smell like compost tea. But when I started using Plagron PK 13-14, the difference was immediate. My buds went from decent to downright dense. I remember one grow with Critical+—usually a stretchy, open structure strain—and after introducing PK 13-14 at week 4, the flowers tightened up like they’d been vacuum-sealed. Trichome coverage exploded, and the weight on the scale jumped by almost 20%. What sold me was the simplicity: no ramping, no extra steps, just 2ml/L and go. I’ve since recommended it to dozens of growers, especially those transitioning from basic feeding schedules to high-performance grows. If you want more bang without the complexity, this is your bottle.
| Cultivation phase: | Flowering Growth |
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| Type of crop: | Soil | |
| Brands: | Plagron |
Can´t yet fully give my opinion of the product as is hasn´t been harvest time but i can see the difference already with my previous buds
Yes, the shipment is 100% discreet, no one will know what you have bought, also the sender is SITE OF SHOPS ONLINE.
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.
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.
In 24/48 hours we will ship your order.
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.
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!
Among all those who comment or send us your questions, there will be a monthly raffle for a €50 voucher for your purchases at Pevgrow. What are you waiting for? Write us and participate!
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