Mataro Blue

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 Same Day Dispatch Information

We will always strive to dispatch orders for special delivery placed before 10am on the same working day, however please note all orders are subject to our usual processing time of upto two working days. Quoted delivery time is from point of dispatch.

 Free Cannabis Seeds

Everybody loves freebies right?

When you shop at the London Seed Centre you are guaranteed a minimum of one free seed with every order.

The more you spend the more free seeds you’ll receive bundled in with your order.

What’s more, our freebies are some of the most popular strains on the market provided by the most reputable manufacturers, so rest assured you won’t be disappointed!

Quantities and strains adjust with order size and value

Don’t forget to sign up to the London Seed Centre today to claim your seed chips for extra discounts on your orders, plus a load of bonus perks for being a valued LSC member.

*Kindly note that free seeds strains are subject to availability, and may be swapped out with different strains if they become out of stock. We alway do our best however to supply a strain of similar characteristics to the seeds on your order. Thank you for understanding.

Champion of the champions. This plant has always been highly valued for its medicinal and therapeutic effects.

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This feminised marijuana seed has an enviable list of awards, and with good reason. We’re talking about the best indica seed on the market with therapeutic possibilities, beyond which there’s an authentic delicatessen for smokers with some experience. Its cultivation requires little attention and the result is extremely enjoyable. Mataró Blue is a hybrid indica with three variants crossed in a winning and particularly beautiful combination.

Its name bears the Catalan city of its origin (where we at Kannabia Seed Company shine a light on it) and the blue colour that its flowers acquire when the end of summer approaches and it’s subjected to a lower temperature.

As stated, it’s a hybridisation of Black Domina with Blue Monster and a pure Afghan from the north of the country – Mazar-i-Sharif, where the mythical Milk of Mazar is produced. The first gives it a consistent branched structure, the second gives it a very productive character and a bluish hue, and the third gives it that unmistakable pure caramel resin. To all of this, we must add Mataró Blue’s own qualities, which none of our other feminised seeds possess.

We’ll obtain particularly powerful gear (23% THC is not for novices) with a strong kaleidoscopic aroma (orange, berries, sandalwood), and which prompts a jubilant and exciting feeling.

We can see that Mataró Blue tends to form flowers in vertical clusters after the vegetative stage, with strong cuttings that are suitable for cloning. It’s a marijuana seed that gives rise to robust, resistant plants that won’t pose problems with unwanted attacks or nutrition (enhance its flavour with carbohydrates; use fertilisers without worrying).

It works especially well outdoors (a virtue that also earned it a prize at the Axarquia cannabis Cup), reaching two metres without too much difficulty. It produces a large central bud and its huge, dark leaves form bushes that really need space around them. This expansiveness may make it necessary to use guides or a SCROG when it comes to supporting the weight of the buds. It’s also suitable for indoors although we recommend the use of a powerful light.

Its flowering takes place between 58 and 62 days, and it can produce 800 grams per plant in optimal conditions. Indoors we could obtain 600 grams per square metre with plants one metre in height. Before the harvest arrives at the beginning of September, its smell is intense and penetrating.

Mataró Blue from Kannabia Seed Company is especially valued for the quality of its resin (thanks to its Afghan parent, Mazar-i-Sharif), which can be cold-extracted or using the Rosin technique and produces top-quality material.

We would like to remind you of its extremely important therapeutic qualities, which have earned it awards such as “Medical Indica” at the TreatingYourself Expo in Toronto.

The effect of this marijuana seed’s buds is very special. Powerful, inspiring and even stimulating in small doses, it’s more calming and relaxing in larger samples. It’s a reaction that comes and goes and provokes a deep, pleasant joy.

Given its high levels of THC, you have to be prepared for its effects. If you’re looking for something smoother, you should consider other marijuana seeds.

There’s a whole world of nuances in its taste: distinctly bitter orange but also fruits of the forest and jasmine. Fruity in any case, with a background of incense that provides a great deal of atmosphere.

And although we’ve previously mentioned it, the fact that it’s a beautiful plant is worth emphasising.

More Information
Cup Winner Yes
Medicinal Yes
Flowering Type Standard
Yield High
THC Content Very High (over 20%)
CBD Content Low (0-1%)
Environment Indoor, Outdoor, Greenhouse
Genetics Mainly Indica
Height Medium
Flowering Time 8-9 WEEKS


FREE 3-5 Day Standard Delivery™

Free standard delivery on your order for delivery within approximately 3-5 days.
(Applies to orders over £50 only)

Royal Mail Signed For™ 1st Class

Royal Mail Signed For 1st Class™ aims to deliver your letter or parcel the next working day however can take up to 3 days - and gives you the added benefits of check online or on your mobile to see where your item is (royal mail website) compensation cover up to £50.

Special Delivery Guaranteed Next Day™

Special Delivery Guaranteed by delivery the next working day. The benefits include end to end tracking and signature on delivery online or via your mobile (royal mail website) compensation cover up to £500 for loss and damagesend items up to 20kg


International Signed For™

For an overseas delivery service you can trust, look no further International Signed For™ mail is available worldwide and travels through a separate and secure network until it leaves the UK . Each item is individually listed and accounted for before being handed over to the airline. Proof of posting and compensation comes as standard, with the option to buy extra compensation up to £500*.

*sometimes £250, depending on the destination.

International Signed For™ items are tracked until they leave the UK when sent by Airmail. Tracking is also available in a number of overseas destinations to delivery.

Delivery aims:

  • to Europe within three to five working days of posting
  • to Rest of World within five to seven working days of posting

* Delivery is in working days and excludes day of posting, Saturdays and Sundays.



Trusted for fast and secure international mail Airsure® receives priority handling in the UK and abroad and is generally a day faster than standard Airmail.

Our aim is to deliver:

  • to Western Europe within two to three working days of posting
  • to Eastern Europe within three to four working days of posting
  • to the rest of the world within six to seven working days of posting.

* Delivery is in working days and excludes day of posting, Saturdays and Sundays.

Note: This service does not guarantee delivery within the timescales indicated. Neither does it offer compensation for delay or for missing tracking information.


Airmail will aim to deliver your mail to:

  • Western Europe within three working days
  • Eastern Europe within five working days
  • major cities worldwide within five working days and other destinations within seven..


You can exchange an unwanted item for a replacement or store credit of the same value if the item is still in the original breeder packet which remains sealed. We will not under any circumstances exchange or replace an open packet. Due to the nature of our products, we cannot give refunds. Kindly note that any items being sent back to us should be sent by recoreded delivery, and the tracking number sent to us by email to [email protected].


Website Legal Disclaimer:

  • This website is only to be used by adults over the age of 18.
  • We (London Seed Centre) refuse to sell cannabis seeds to anyone we have reason to believe is going to cultivate them in countries where it is illegal to do so.
  • You have checked your local and international laws in relation to cannabis seeds and agree to follow them.