If you only want the strongest weed, you should grow this THC Master Mix. In this mix you will find the five Dutch-Headshop strains with the highest THC percentages. In the THC Master Mix you will find one seed from each of the following strains:

• OG Kush | up to 24% THC
• Wedding Cake | up to 24% THC
• Gorilla Glue | up to 25% THC
• Jack Herer | up to 25% THC
• Girl Scout Cookies | up to 28% THC

Characteristics THC Master Mix:

• The five strongest THC seeds from our private label collection
• THC percentages up to 28%
• Sativa, indica and hybrids: something for everyone
• Suitable for indoors, outdoors or in a greenhouse
• Very powerful, varied effects
• Feminized seeds with strong germination
• With free germination kit

OG Kush

The OG Kush actually needs no introduction. This strong weed variety from the United States has a THC percentage of up to 24% and is world famous. Experienced stoners recognize the complex flavour of citrus and diesel immediately. This weed will get you incredibly stoned. Powerful, relaxing and narcotic effects. This plant grows to approximately 100 to 150 cm tall. Grown under ideal conditions, she can reward you with 600 grams of weed per plant.

Wedding Cake

This crazy weed plant can produce up to 25% THC in its enormous buds. The harvest from Wedding Cake is not wrong... no understatement: massive. With green fingers, a strict fertiliser schedule and a lot of sun, you’ll be cutting up to 1,500 grammes of fresh weed at the end of September. Get yourself a ladder because this indica-dominant, bushy wedding cake can get up to 2 metres in height. The harvest smells and tastes of cherry pie: sweet and fruity with a hint of berries and vanilla. Be careful with this weed because before you know it you’ll be nailed to the sofa. 

Gorilla Glue

ts THC percentage of between 20 and 25% will let you enjoy a mental buzz while lying on the sofa. These Gorilla Glue seeds produced strong weed plants with a higher than average yield which do really well both indoors and outdoors. They are therefore versatile. Due to the short flowering time of 7 to 8 weeks, these are Fast Flowering seeds. But do you put them outside all summer under ideal conditions? Then you can grow a plant of up to two meters. 

Jack Herer

Jack Herer weed is named after the American activist and politician of the same name. And not without reason. For this variety is a combination of extremes. Precisely the reason why several seed cultivators have won innumerable cannabis cups with Jack Herer. From a high THC percentage of 25% all the way through to the complex mix of high and stoned, and the medicinal value that the weed can provide. Jack Herer for President!

Girl Scout Cookies

Girl Scout Cookies, or GSC, is one of those varieties of weed that you have to try at least once. If only because it’s one of the strongest varieties of weed you can get. With a THC percentage that at various cannabis cups was clocked at 28%, the Girl Scout Cookies strain won plenty of trophies. It’s a Californian hybrid of OG Kush and Durban Poison and it gets its name courtesy of the first class weed that tastes of chocolate, fruit and mint. Cultivate it yourself with these feminised weed seeds from our house brand and enjoy the powerfully narcotic and euphoric effects of one of America’s best loved varieties.

Growth and Yield

As you can read, light, water and some feed are enough for a handsome yield. All types in this selection are suitable for advanced cultivation techniques like LSD, defoliation and ScrOG. You can grow all five varieties indoors, outdoors or in a greenhouse. They all have an average flowering period between 7 and 9 weeks. The flavours and effects vary enormously. The seeds are all good for a yield of over 500 grams per square meter. One exception is the Girl Scout Cookies with a maximum yield of 1500 grams per plant. 

Specifications THC Master Mix Weed seeds:

• Genetics: Divers! Something for everybody
• Location: Growing indoors, growing outdoors and growing in a green house
• Flowering period indoors: all between 7 and 9 weeks
• Effects: Especially suitable as a recreational weed or for medicinal users who want to use THC
• THC: Between 23% and 28%
• CBD: Low
• Seeds: 5 feminized seeds
• Yield indoors: All above 500 grams per square meter under ideal conditions
• Yield outdoors: Ranging from 500 to 1500 grams per plant under ideal conditions
• Autoflower: No

*The abovementioned numbers are averages.

Use a Vaporizer

We recommend using a vaporizer for medical use, but also for recreational use. A vaporizer is a healthier way to enjoy the cultivated plants. In our webshop we have a huge range of high-quality vaporizers available directly from stock. That way you prevent tobacco from making you lethargic and drowsy and of course you from ingesting harmful tobacco at all.

Includes Free Germination Kit

With any purchase of our house brand weed seeds, a germination kit is supplied as standard. From us, to you. Completely free of charge! Useful if you don’t yet have anything at home for the germination process or are experiencing difficulty with it. It’s bound to work with our gift. The kit consists of:

• A round bio plastic tray
• 2 wads of cotton wool to fit the tray
• Manual (NL & EN)
• 2 insert cards for the plant tray

Germination guarantee

All our cannabis seeds are of excellent quality. Yet, cannabis seeds are a natural product and it can occur, despite your best care, that one of your seeds will not germinate. Do you want the assurance that all your seeds will germinate? Make sure that your seeds germinate with the Dutch-Headshop Germination Guarantee! This is how it works:

1. You buy the guarantee (per packet of seeds 1 guarantee) - add it to your shopping cart.
2. You tell us how you germinated.
3. You send us a photo where all seeds are visible.
4. Your germination guarantee is valid 30 days after purchase

Are you entitled to replacement of the seeds you bought?

• You can choose one type of seed from our private label selection as replacement.
• The seeds that did not germinate will be replaced.

With the Dutch-Headshop Germination Guarantee you will receive assurance and service for a small price.

Private Label

Would you like to cultivate weed and are you looking for quality seeds at a competitive price? Then our House Brand weed seeds are your best choice. House brand weed seeds are high quality but economical in comparison with big brands. Follow our included germination instructions for best results.