Strain Profile
Breeder
CRITICAL MASS COLLECTIVE
Cup Winner
No
Medicinal
No
Flowering Type
Autoflowering
Yield
High
THC Content
High (15-20%)
CBD Content
Low (0-1%)
Environment
Indoor, Outdoor, Greenhouse
Genetics
Ruderalis Hybrid
Height
Short
Flowering Time
10-12 WEEKS
Auto Sour Melon Mass
CRITICAL MASS COLLECTIVE
To date, the collective is the fastest growing network of Mass enthusiasts on the planet and boasts well over 100 years of breeding experience between them, resulting in a selection of the biggest, baddest Mass hybrids of modern times.Product Overview
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.
Ask a Question
Product Overview
MORE GOOD REASONS TO SHOP AT THE LONDON SEED CENTRE
Free delivery
Choose Next Day Delivery
International Recorded Delivery
London Seed Centre Order Delivery Information
At London Seed Centre, we aim to provide fast and reliable shipping for all our customers. Please note that all orders are subject to a processing time of up to two working days, and quoted delivery times apply from the point of dispatch.
UK & Northern Ireland Shipping Methods
Standard Recorded Delivery™ (3-7 Working Days From Dispatch)
Delivered within 3-7 working days.
Includes online tracking and proof of delivery.
Royal Mail Signed For™ 1st Class (2-5 Working Days From Dispatch)
Aims to deliver within 2-5 working days.
Includes online tracking and proof of delivery.
Special Delivery Guaranteed Next Day™ (From Dispatch)
Next-day delivery from the date of dispatch.
Confirmation email and tracking number provided upon dispatch.
Free Delivery for Seed Orders
Orders over £50: Free standard recorded delivery for UK seed orders.
Headshop Items Shipping Methods
Free Delivery
Orders over £50: Free standard recorded delivery for smaller, lighter items.
Orders over £100: Free standard recorded delivery for heavier, bulkier items. (Applies to headshop items only – excludes seeds and other items.)
Standard Recorded Delivery (3-7 Working Days)
Under 1kg: £5
1-3kg: £8
Over 3kg: £10
First Class Recorded Delivery (2-5 Working Days)
Under 1kg: £6
1-3kg: £10
Over 3kg: £12
Special Delivery Guaranteed Next Day™ (From Dispatch)
Flat fee: £15 (regardless of weight).
International Shipping
International Signed For™
Secure, tracked service available worldwide.
Items tracked until they leave the UK and in some overseas destinations.
Delivery Aims:
Europe: 3-10 working days.
Rest of the World: 5-15 working days. (Delivery times exclude day of posting, Saturdays, and Sundays.)
Further Information
Airsure®
Priority handling in the UK and abroad.
Generally 1 day faster than standard Airmail.
Delivery Aims:
Western Europe: 2-3 working days.
Eastern Europe: 3-4 working days.
Rest of the World: 6-7 working days.
Note: Delivery times are not guaranteed, and compensation is not available for delays or missing tracking.
Airmail
Reliable service for lighter international mail.
Delivery Aims:
Western Europe: 3 working days.
Eastern Europe: 5 working days.
Rest of the World: 5-7 working days.
Returns & Replacements
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.
RETURNS & REPLACEMENTS
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].
Login and Registration Form