Surprise Killer Mix

100 % of 100

 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.

A killer cannabis collection of some of Dr. Undergrounds most cherished strains, Killer Mix truly is a pick and mix of prime pot. Four formidable feminized favourites (available in packs of 4 or 8) make up this mish mash of marijuana that every cannabis connoisseur will be dying to try.
Price from £29.00
Only %1 left
Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account
Available either in packs of 4 or packs of 8, Killer Mix from Dr. Underground brings together a distinguished collection of some of the most aromatic, potent and tasty feminized specimens available on the market. Making up this marijuana melee we have the big yielding behemoth King Kong, the frightfully fruity Melon Gum, the medical marvel Painkiller and last but not least the psychedelic protege Crystal M.E.T.H. A quartet of sublime quality, Killer Mix delivers the ganja goods to suit even the toughest of critics. A foursome of pure and unadulterated awesomeness, they come with the own sets of individual quirks and qualities. For instance, Crystal M.E.T.H. manages to captivate your senses with her cerebral prowess, inducing a stone of both euphoric and psychedelic merit. King Kong on the other hand is more of a work horse, producing large quantities of resinated bud in extremely short time periods. Painkiller although (like King kong) is an extremely fast bloomer, truly excels in more therapeutic endeavours (hence the name). Last but not least, the mouth wateringly delicious Melon gum. This fruit cocktail of flavours is a rich and tantalizing treat for all the senses, cannabis connoisseurs with a fondness for fruit will most definitely want to chew this gum. Killer Mix manages to satisfy just about every need a grower could think of, not to mention opening your eyes (and your mind) to a selection of strains that may or may not have tried before. The Killer Mix with 4 seeds contains 1 seed of each strain. The Killer Mix with 8 seeds contains 2 seeds from each strain.
More Information
Cup Winner No
Medicinal No
Flowering Type Standard
Yield Medium
THC Content Medium (10-15%)
CBD Content Medium (1-5%)
Environment Indoor, Outdoor, Greenhouse
Genetics Indica/Sativa
Height Medium
Flowering Time 8-10 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 [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.