Heavyweight Seeds were originally founded in Spain in 2008.Using only highly stable pure strains, the Heavyweight team set about producing a mouthwatering selection of varieties, a range with a variety to satisfy all tastes. Only released onto the European market in 2010, Heavyweight is already building a name for consistency and quality time and time again.With an expert team dedicated to ongoing research and development, the Heavyweight ethos is simple – our driving passion is to produce top quality genetics and we will stop at nothing on our quest for excellence!Heavyweight produce an exciting and varied range of feminised seed strains. Head spinning indicas, soaring Sativas and well crafted crosses means there's something for everyone, from the medicinal to the cerebral and social. Heavyweights consistently big yields also make the range a perfect choice for the commercial collector.Heavyweight also produce an autoflowering feminised range. Autoflowering strains have traditionally displayed poor genetic stability and disappointing yields, but no longer. The Heavyweight autoflowering range is completely stable and a great choice for the beginner, or for the collector with limited space.For top quality and knockout results, look no further than Heavyweight!

Auto Extreme Impact is an overwhelmingly indica-dominant plant (90%) which has an extremely effective hit that will prove to be a knockout for the inexperienced smoker or vaper. Very easy to grow and with enormous yields that wouldn't disgrace a standard photo-period strain Auto Extreme Impact will thrive in any grow medium producing resin-laden buds whether grown indoors, in a greenhouse or outdoors in the sun.This auto-flowering strain is a cross of Mazar Auto and Fast & Vast Auto and has tremendous mould and pest resistance so its a great choice where humidity might be a problem for some other plants. It remains quite short at 70 - 80 cm. tall but can produce an almost unbelievable 650 gr/m2 indoors or between 50 - 150 gr/plant outdoors or in a greenhouse in just 8 weeks from germination. Yes, that's not a typo, as much as 650 gr/m2 in 8 weeks flat!The aroma of this plant is very pungent and may well require odour control if neighbours might present a problem. Its taste is of hash with clear notes of lemon and lime. THC levels are very high and have been measured at an amazing 21% with low CBD of 0.6%. The effect is very powerful and although it has a marked cerebral quality it can prove physically devastating and very long-lasting. N.B. Not really recommended for day time usage!GENETICS Mazar Auto x Fast&Vast AutoVARIETY Mostly IndicaTHC CONTENT 21%CBD CONTENT 0.6%YIELD Indoors: 650 gr/m2; Outdoors: 50 - 150 gr/plantPLANT HEIGHT 70 - 80 cm.GROWS Greenhouse, Indoors, OutdoorsFLOWERING TIME 8 weeks from germinationHARVEST MONTH 8 weeks from germinationTASTE / FLAVOUR Lemon, LimeEFFECT Long-lasting, Physical, Powerful