Jack the Ripper

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 Final Dispatch: 10 AM GMT

All orders for next day delivery placed after 10 AM will be dispatched the next working day. If item is out of stock, customer will be given the option to wait, exchange or refund.

 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.

Jack The Ripper is comprised of a combination of not less than seven different cannabis varieties! And more than one of those is widely known; the legendary Northern Lights, the renowned Jack Herer and the famed Romulan for example. This killer weed has a well deserved name - it sneaks up to you and then cuts through your train of thought with no mercy. Remarkably heavy resin production.

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Jack The Ripper carries the genes of not less than seven different cannabis varieties in itself! Simply listing them all will probably not ring a bell, but Ill do it anyways. Jack The Ripper is comprised of Pluton, Purple Haze, Lambsbread, Northern Lights, Jack Herer, Romulan and Cinderella 99. OK, some of those names are more than widely known, but as soon as you read Jacks Cleaner and Space Queen a whole carillon starts to chime, right?

Jacks Cleaner is a large, very high yielding Sativa variety with ultra white erect trichomes created by crossing the first four strains in the list with a male Jack Herer and some worship it as the holy grail of cannabis. It has a very intense citrusy, lemony and musky aroma and an overbearing lemon taste. Romulan and Cinderella 99 blended together resulted in Space Queen, a very potent strain with a taste that marinates the taste buds in exotic flavors of citrus and skunk. By combining those kick-ass varieties, TGA Subcool created a second to none killer weed that really deserves a martial name.

The plants perform best when not topped, but rather trimmed accurately. Grant them a long vegetative growth period to allow for the highest possible yields. Jack The Ripper starts producing resin remarkably early after switching to a 12/12 lighting schedule - some plants will show the first divine tear drops after only 12-14 days. And after 8-9 weeks you will be kneeling in awe. The trichomes are now not only covering the buds, but also all the leafs nearby. Jack The Ripper comes in two main phenotypes, both have the aroma of a Lemon Haze, but one of them has a smell with a more pronounced pine smell. The taste is the same as the aroma, but with a touch of mango and lingers on the tongue for a while.

Jack The Ripper should be approached with caution - the first toke may seem not really strong, but this vile stuff sneaks up from behind and then hits you hard, cutting through your train of thought without mercy. The high is very intense and heady and causes serious cases of having the munchies. If you smoke more you will also feel the sweet body numbing effect.

More Information
Cup WinnerYes
Flowering TypeStandard
THC ContentUnknown
CBD ContentUnknown
EnvironmentIndoor, Outdoor, Greenhouse
GeneticsMainly Sativa
Flowering Time8-9 WEEKS


FREE 3-5 Day Standard Delivery™

Free standard delivery on your order for delivery within approximately 3-5 days.
(Applies to orders over £30 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 and remains UNOPEN. We will not under any circumstances exchange or replace an open packet. NO REFUNDS.