Silver Widow

 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.

Silver Widow is the perfectly stable result of crossing White Widow with a White Widow male plant of the highest pedigree.
Only %1 left
Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account

Kannabia Seed Company breeders are always thinking about outdoing themselves. In the case of feminized marijuana seed Silver Widow they have created a wow factor and have marked a milestone that sets very high standards for this herb alchemists union. They have dared nothing more and nothing less than with the legendary White Widow, one of the great stars of the ‘90 Dutch Golden Age. Fast and powerful, a true goddess in the sector.

The goal was to turn it into an even more productive, faster, more aesthetic, more effective super plant. And since we’re talking about an unsurpassable seed, the best thing was to raise one’s bid and we interbreed it so that everything would multiply. From these concentration of white seeds has born a silver seed with a capacity and such features that exceeded all our expectations. It was 2020 when we decided that we’ve done everything that we could to improve it and that it was ready to be shared. Since then, we know we were right.

The White Widow that beats under those gray and shiny trichomes is a celebrity in the world of marijuana who is about to turn 30, created by the genius of Shanti Baba. In our study we knew it well and we only dared to manipulate it when we were sure of what we wanted to achieve, out of respect for the original seed.

The Silver Widow is a wonderful plant with an aura of hypnotic power. It is not only majestic in its presentation, with that cannabis shine; it also has a very strong and penetrating aroma, Skunk type that calls you as a secret siren song. There’s something magical about this silvery widow hard to explain yet, a genetic force that we’ve awakened.

The Silver Widow growing is suitable for both indoor and outdoor. It is also resistant to pests and other cannabis diseases, so you don’t need to be an expert to see it flourish. 

Indoors it is not a plant that demands an extraordinary space, it is shaped like a shrub and its large green leaves are densely arranged near the stalk. In 65 days of flowering, when the tight buds already shine silver and shiny, you can harvest up to 600 grams per square meter. 

Outdoors its yield is also very attractive, with about 700 grams per plant. It reaches two meters in height and well scheduled is ready to be harvested in October. At the stage of growth be careful and do not over fertilise.

You haven’t tried a feminized marijuana seed like that. Even during its flowering, the Silver Widow smell warns you that it has a unique personality and is superior to other more innocent sisters. It tastes like fresh soil and has a sweet bouquet, but the hint of intense pepper will completely confuse you. 

Its genotype is a perfect balance between indica and sativa properties, relaxing and uplifting at the same time. It invites you to an epiphanic and creative moment in which you will see the ideas much clearer.

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 Indica/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 [email protected].


Website Legal Disclaimer:

  • Age Limit: Access is restricted to individuals 18 years or older.
  • Content Notice: This site contains information on cannabis seeds.
  • Compliance Requirement: We do not sell seeds to anyone intending illegal cultivation.
  • Legal Responsibility: By entering, you confirm compliance with your local and international cannabis laws. Continuing implies acceptance of these terms.