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Knockout (K.O.) Seeds

Our Favourite One-Hit Wonder!

Introducing the most flamboyant thoroughbred Skunk ever produced! The hit from Knockout (K.O.) Seeds is ferociously good - do not underestimate what Advanced Female Seeds has done here. They paid overwhelming attention to every little detail to make Knockout (K.O.) Seeds a totally devastating strain!

  • 100% Feminized Seeds
  • Very High THC
  • Rapid 6-9 Week Finish
  • Devastatingly Good
  • Buy Knockout Seeds!


for 1 seed 

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Knockout (K.O.) Seeds

Knockout (K.O.) Seeds Cannabis Seeds

Try Knockout (K.O.) Seeds & Be Out for the Count!

Knockout is a devastating feminized seed that promises to knock you on your ass with the first punch. Be extremely careful with this annihilator!

Moderation is the name of the game with Knockout (K.O.) Seeds until you know exactly how you react to these babies. Due to the extended recovery time, do not, I repeat, do not try these if you have to do anything at all in the next few hours. Don't say we didn't warn you!

  • Knockout (K.O.) Seeds are Insanely Strong
  • Expensive But So Worth It - Extremely Dank
  • High Yields & Extremely Fast Finishes
  • A Rhino-Approved Piece of Cannabis Art!

Knockout (K.O.) Seeds are charismatic, elegant and a little expensive - but so special they're a deal at any price. Advanced Female seeds may not have wanted us to describe KO as a thoroughbred, but if not... well, she's a real work of art!

When we first tried Knockout Feminized, we were expecting a lot, and this completely re-defines what great Skunk should be! Savagely strong but with an energetically high, the results are dramatic & the effects are profound!

This description of Knockout (K.O.) Seeds is based entirely on the specifications provided by Advanced Female Seeds. Check out our disclaimer page for more on this subject.

Seed bank: Advanced Female Seeds
Type: Feminized Seeds

Checkout the statistics on Knockout (K.O.) Seeds

Seed bank: Advanced Female Seeds
Type: Feminized Seeds



THC Notes


Indica >50% Cannabis Seeds


Sativa/Indica Notes

80% indica, 20% sativa

Flowering Outdoors

Mid September

Thc level

High : 15% +

Flowering time

6-9 weeks

Recommended outdoor


Recommended indoor








Outdoor Yield

Outdoor 600g/m2

Indoor Yield

Indoor 450-600g/ m2

If you're looking for a real powerhouse, buy Knockout (K.O.) Seeds! This stupendous Skunk is everything that Advanced Female Seeds promises and then some. You'll never believe how good this one actually is unless you try her for yourself - order today!

Legally, you're in the clear in the UK if you'd like to buy Knockout (K.O.) Seeds for your collection or to show off as a souvenir. However, should you decide to put these extraordinary cannabis seeds to work through germination or cultivation, you could be found guilty of a major crime. Read our disclaimer page to learn more.

Not happy with your new cannabis seeds? Receive the wrong item? Simply change your mind?

Returns are never a problem when The Rhino's large & in charge. Follow these instructions and we'll set everything right:

  • Do not open the sealed breeder pack. Rhino Seeds only accepts unopened returns.
  • Contact our customer service department for an RA number.
  • Pack your unwanted items in a padded mailer with the RA number & your contact info.
  • Ship your package postage paid using trackable Royal Post to Rhino Seeds at the address shown below.

Send all returns to:
Rhino Returns
PO Box 456
Weston Super Mare
BS29 6HE

Once your items reach the Rhino Seeds' warehouse, we'll process your return as fast as possible. In most cases, the entire process only takes 3 to 4 business days, but it can take a little longer during peak seasons.

Rhino Seeds will issue your refund in the same format you used to make your payment. Note that each financial institution has their own policies and procedures that can affect how long it takes for your funds to reach your account. Unfortunately, not even The Rhino has control over that little fact of life.

If you have any questions about this process, the status of your return or the next scheduled alien invasion, don't hesitate to contact us by phone, email or snail mail. The Rhino Team is always here to help!

The Rhino Always Delivers!

Whether you choose an old-school cannabis seed, a brilliant new feminized strain or an ultra-fast autoflowering hybrid, Rhino Seeds backs every order with a 100% delivery guarantee, and we protect your privacy with absolutely discreet packaging. You always get exactly what you expect when you deal with The Rhino!

  • 99% of Orders Delivered within 48 Business Hours
  • Plain Mailers with No Identifying Information
  • Just £5.85 per Order for Trackable Royal Post
  • Fast Communication if any Issues Arise

Purchasing cannabis seeds in the UK for collection, preservation or souvenir purposes is perfectly legal, but that doesn't mean you want everyone to know about your little hobby. Discretion, privacy and personal security should be The Rhino's middle names, but that would never fit on his driving license.

Instead, we conceal the contents of your order from prying eyes with 100% discreet packaging in the form of a plain padded mailer with absolutely nothing on the outside except your delivery address. We'd skip that too, but we haven't found a single postman who can read invisible ink - yet!

The Cheapest Prices in the UK - Guaranteed!

The Rhino doesn't just match prices, he beats them to a pulp! To make sure you always get the absolute best deal in the UK on the finest cannabis seeds in the known (& unknown) universe, Rhino Seeds backs every purchase with his unbeatable Best Price Promise.

Here's how it works:

  • Buy your choice of 5-star cannabis seeds from Rhino Seeds.
  • Find them for less at another VAT-registered seed bank - we dare you!
  • Let the friendly rhinos who man our customer service department know.
  • If everything checks out, you'll get a refund for the difference plus a fiver.

No one can beat The Rhino's Best Price Promise! In fact, other seedbanks don't even try - they just ignore us & hope we'll go away.

Shop at Rhino Seeds with Complete Confidence - Every Order Backed by Our Best Price Promise!

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1 seed - £12.99
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3 Seeds - £31.99
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5 seeds - £44.99
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10 seeds - £79.99
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Advanced Female Seeds

Advanced Female Seeds

Knockout (K.O.) Seeds are a high potency strain created by the Advanced Female Seeds Company. Operating out of sun-filled Spain, Advance Female Seeds is a leading provider of 100% feminized seeds with unique flavours, incredible power & amazing yields. If you're looking for a stunning, connoisseur-grade cannabis seed, you won't find anything better than Advanced Female Seeds.


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Latest Knockout (K.O.) Seeds Comments

Always use da rhino top quality seeds loads of choice , rhino are a well oiled machine wiv all employees are of great help , long time user , keep up the good work RHINO

greenman - 21st April 2013

Should be renamed sky rocket,ass it puts you straight into orbit.

petlover. - 3rd April 2013

expensive, but well worth it. I'll personally be getting more when they are back in stock, highly recommended.

drexel - 5th August 2012

does what it says on tin

booboo - 22nd July 2012

perfect name for the perfect bean - great job!

bobo - 13th July 2012

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Seeds are sold for collection purposes only - Germinating cannabis seeds is still illegal. Copyright © 2013 Rhino Seed Bank All rights reserved. Link to Rhino Seed Bank