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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.

From the sunny West Coast of the United States to warm Andalusian lands, this revolutionary traveling strain, ready to conquer the hearts of the most faithful Kannabia fans (and also of those who are yet to join them), has arrived in our catalogue.
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The breeders at the Kannabia Seed Company are very given to working with North American strains (mainly the famous Californian ones) because they’re a team that’s very pro-West Coast. We take all the benefits from them and add our own distinct identity. In this case, it’s a super American feminised marijuana seed, the GSC, with a menthol flavour and a powerful effect (truly potent) that delights expert growers. If you’re a novice or neophyte, bear in mind that this plant will demand a certain level of expertise.

Our design is based on an excellent Girl Scout Cookies (now you know where the acronym comes from), a seed that amazes us, paired with an OG Kush that’s full of diesel fragrance and relaxation. The combination has resulted in enhancing the aromatic flavour and giving scope to its sativa character with unparalleled power. It’s a backcross in a way because the original Girl Scout Cookies already contained OG Kush genes, but this new twist has elevated it to power of five.

Of course, Kannabia’s GSC is synonymous with quality. It’s also a very slender plant, with long branches that are populated with vibrant trichomes. She could work perfectly as a model if catwalks for marijuana plants existed. How wonderful to see her so happy in her place!

There are other seeds in our bank that we advertise as suitable for beginners but, as we’ve mentioned, GSC isn’t one of them. It requires a little more attention and experience to get the most out of it, and we can assure you it’s well worth the effort to achieve maximum benefits.

It grows reliably with flexible yet long, robust branches, which are full of compact sticky buds loaded with resin. It’s a short plant – indoors, it’ll be a metre high with a bushy shape, but it’s highly efficient. With a flowering period of between 65 and 70 days, you’ll be able to see the obligatory 450 grams per square metre that every grower wants to obtain.

Outdoors, we ask you to find it the warm sunny place that it needs (it’s the only way to collect 500 grams per plant of its delicious fruit in October). It doesn’t exceed a metre and a half in height – it’s small but tough. It’s sensitive to either a lack or an excess of nutrients; it takes what it needs.

We must also warn about its potent aroma (this mixture of terpenes is really explosive). If you plant it indoors and don’t want to disturb it, you’ll have to use an activated carbon filter or another system for extracting odours.

The taste is its great strength, surely. An excellent spicy, earthy bouquet, like OG Kush but with that floral, mint, and lavender lift that only a Girl Scout Cookie could give it. It’s long lasting and intense.

Take care with its effects. This feminised marijuana seed gives rare results in laboratory tests – with a THC of 25%. We could talk about euphoric relaxation or relaxing euphoria; in any case, it’s an important sensory trip, both physically and mentally. Think before repeating it.

More Information
Cup Winner No
Medicinal No
Flowering Type Standard
Yield High
THC Content Very High (over 20%)
CBD Content Low (0-1%)
Environment Indoor, Outdoor, Greenhouse
Genetics Mainly Sativa
Height Medium
Flowering Time 9-10 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


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.