Hesi PK 13/14
Mineral liquid fertilizer
Hesi PK 13/14: During the flowering period, the need for phosphorus and potassium increases more and more. Flowering leads to reproduction, a large amount of genetic material (DNA) is built up and is accompanied by an increasing energy requirement. Both the energy molecules and the DNA strands contain a large amount of phosphate. Potassium is crucial for transporting water and particles from roots to leaves. It also regulates the absorption of carbon dioxide and influences photosynthesis performance.
PK 13/14 is a practical tool to gradually increase the PK content and avoid excessive amounts of PK in the early flowering phase, which is particularly important in hydroponics.
Characteristics
NPK 0-9-7
NPK is the abbreviation for the three main nutrients in fertilizers:
- N = Nitrogen: Promotes leaf and shoot growth.
- P = Phosphorus: Supports root formation, flowering and fruit set.
- K = Potassium: Strengthens plants, regulates water balance and increases resistance.
The numbers after NPK (e.g. 6-4-8) indicate the percentage of the respective nutrients in the fertilizer.
NPK = main nutrient ratio of a fertilizer .
Application
Please note the safety instructions on the product
Fertilizer plan
Product data sheet and information from the manufacturer
Safety data sheet
Couldn't load pickup availability
Pickup available at GrowTastic Growshop
Usually ready in 2-4 daysIn stock! Ships in 2-5 business days
Shipping by Swiss shipping company, we are constantly looking for the cheapest option for you| Parcel shipping number will be stored in your account
Customer service without AI | If you have a question, call us or contact us in writing, we will be happy to answer you
Hesi PK 13/14
Do you have any questions? We'll get back to you within 24 hours (during opening hours). If it's urgent, just give us a call!
-
Everything about shipping
We ship all orders as quickly as possible - usually within 2 to 5 working days.
In exceptional cases (e.g. due to delivery delays or circumstances beyond our control), the delivery time may take longer. In such cases, we will inform you immediately by email.
Shipping takes place with a Swiss shipping company. We are constantly looking for the cheapest option for you.
The shipping costs are borne by the buyer. The required packaging material is already included in the shipping price.
-
Support Team
Personal contact is important to us.
We advise you ourselves – honestly , directly and with heart .
This sometimes takes a little more time, but you get faster, clearer answers in return.Do you have questions about an order or need help with calculations?
Just get in touch – or come by, we look forward to seeing you. -
FAQs
You can already find many answers in our FAQs - maybe your question is already there?
We update them regularly with your feedback.
-
Contact us
Use this text to answer questions in as much detail as possible for your customers.
Your go-to for fertilizers and plant boosts
since 1996
How HESI came about
The story
A German woman and a Dutch man fell in love with plant care. Siglinde was a scientist, working on various projects in a laboratory. One of her side projects was the development of a high-quality fertilizer. For this passion project, only the finest ingredients were considered, and no expense or effort was spared. The same recipe, with the same quality standards, is still used today. Their friends, who were involved in cultivation, were not achieving the desired results. These cultivators were challenged and desperately needed a high-quality fertilizer. With their passion, experience, and motivation, they embarked on a journey together and founded Hesi Plantenvoeding. They said goodbye to their old lives and never looked back.
"What should we name our company?" Henk asked. After some brainstorming and discussion, they realized it was a passion for both of them, so why not combine their names? Thus, the name "HESI" was born: a combination of the first names of the two company founders.
HE stands for Henk and SI for Siglinde.
High-quality fertilizers
Produced by HESI
Plant and soil additives, blended, filled, and packaged in our own production facilities in Kerkrade, the Netherlands. We've been doing this with love and passion since 1996.
Thorough research into the mysteries of plant metabolism has enabled HESI to develop an optimally balanced composition for every phase of plant life. The result is a range of fertilizers for every developmental stage, but universally applicable, rather than specific fertilizers for each individual plant species. Additional vital substances such as vitamins and amino acids allow the plants to boost their energy levels. This makes growing house, garden, and patio plants a true pleasure.
Hesi is a thriving, internationally operating company with a global reach across Europe, the Americas, Asia, and South America, characterized by a personal touch and a down-to-earth approach. Plant lovers can find the nearest Hesi shop in our Retailers section.
2025
To this day
Hesi has helped more than 1,000 companies and individuals with its solutions. Our secret? Listening carefully and exceeding every customer's expectations with genuine ingredients, in-house production, and personal customer contact. The inspiration for founding the company—the smiles on their friends' faces—is what has driven Henk and Siglinde all these years.
Check out all Hesi products
