MayDay Express

Step up to a powerful autoflowering cannabis seed with Positronic’s MayDay Express. This is Positronic’s first venture into the Automatic market, and they’ve outdone themselves. MayDay Express offers 15% THC, 100 gr/m2 yields, a 65-day finish and fresh, l
Free shipping and seeds
In stock
MayDay Express(1763)
From £12.59
All information on the Rhino Seeds website and any Rhino Seeds promotional material or packaging is for informative purposes only and is not intended to condone, promote or incite the use or cultivation of illegal and controlled substances. Please note that this information comes directly from the breeder and is readily available online. Please read our legal disclaimer for more information

MayDay Express is the autoflowering cannabis seed you’ve been waiting for! Positronic’s first venture into the exciting new world of automated seeds resulted in a stupendous bean with up to 15% THC, 100 gr/m2 yields and a very pleasant, euphoric high.

These marijuana seeds have a delightful smell that’s filled with lemon and fruity aromas. MayDay Express Seeds taste like lemon too, but the soft flavour has just a touch of cinnamon to add a more exotic touch.

  • MayDay Express is Positronic’s First Auto
  • 12 to 15% THC – 100 gr/m2 Yields
  • 60 to 68 Days From Seed - Rapid
  • Lemony Flavours & Aromas

As a Misty/Lowryder #2 hybrid, MayDay Express Feminized is compact with a neat little Christmas-tree shape. This AutoFem stays under one meter with short nodes. Combined with its exceptional speed, these features make MayDay Express Auto a favourite for stealthy urban collections.

If you’re still not sold on autoflowering cannabis seeds even if it is a Positronic’s creation, check out some of the other seeds offered by this legendary breeder. We're partial to Blue Rhino, a delightful feminized seed created by crossing Blueberry with White Rhino. It’s rhinolicious, just like our own Rhino!

Write Your Own Review
Only registered users can write reviews. Please Sign in or create an account


Indoor ? Yes
Outdoor ? Yes
Cannabis Genetics Misty X Lowryder #2
Flowering Time ? Autoflowering
THC notes 12 to 15%
CBD 0.2%
Height notes Under 1 Meter
Flowering Outdoors Start in May, Finish in 60 to 65 Days
Indoor Yield 40 to 100 gr/m2
Outdoor Yield 50 to 80 gr/seed
Greenhouse ? Yes
Back in the 80s, Positronics was THE source for high-quality Dutch Cannabis Seeds. Founded by Wernard Bruining, a true marijuana legend, this iconic seed bank went bankrupt in 1996 and distributed their gene pool including Northern Lights, White Widow and Skunk #1 to a variety of trusted friends. A few years later, Spanish breeder Sebastian Sebas convinced Wernard to restart the business in Spain. Now, you can get the quality you expect from the Positronics name in both old-school strains and brand-new genetic blends. Check 'em out!