Royal Critical Automatic

Critical is one of our most popular strains—a winner of many awards in Spain and beloved by commercial growers around the world for its robust growth and large yields. Our Royal Critical Automatic was bred to be just like Critical, only easier to grow and faster to finish!
 4.5/5 (303) Write a review
Number of seeds:
€ 8.50
€ 21.50
€ 32.50
€ 60.00
€ 21.50 tax incl. In stock
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  • More info
  • Data sheet
  • Questions (7)
  • Reviews (241)
  • Customer pictures (8)


Royal Critical Automatic was created to retain the very best characteristics of the photoperiod Critical, but with greater ease of cultivation and a much quicker life cycle. Why wait out the extra weeks of flowering when you can crop a Critical harvest in no time? This feminized autoflowering cultivar takes the already hardy genetics behind Critical and adds ruderalis to the mix to speed things up.

With a THC content of 14%, Royal Critical Automatic isn’t quite as potent as the original, which some consumers may enjoy. This hybrid contains significant sativa and indica influence, making it a good smoke during the day to stay productive and focussed, or to use in the evening before bedtime. The high of this strain is characterised by the relaxing and euphoric effects of the original Critical, with less potential for couchlock.

As implied by its name, Royal Critical Automatic will flower automatically, regardless of light schedule. This makes it an easy-to-grow plant that is especially suited to beginner cultivators looking to grow Critical. Even more experienced growers will enjoy the big, dense buds that waft intoxicating aromas at the end of the flowering phase. Scents of wood, spice, and sweetness will dominate the terpene profile. In just 9 weeks post-germination, this Critical variant will be begging for the chop.


Royal Critical Automatic will grow to around 55-65cm in height. Although small and bushy, it has an open structure which allows for greater light penetration to all areas of the plant. This means bigger and better harvests. With yields amounting to 165g/plant of delicious, sweet-skunky buds, there are many reasons why Royal Critical Automatic deserves a special spot in your cannabis garden.

  • Strain Type: Autoflowering
  • THC: 14%
  • CBD: Low
  • Yield Indoor : 350 - 400 gr/m2
  • Yield Outdoor: 115 - 165 gr/plant
  • Height Indoor: 55 - 65 cm
  • Height Outdoor: 90 - 140 cm
  • Flowering time: 6 - 7 weeks
  • Harvest Month: 8-9 weeks after sprouting
  • Genetic Background: Critical x Ruderalis
  • Type: Sativa 15% Indica 50% Ruderalis 35%
  • Effect: Relaxing and full of flavour
  • Climate: Mild
  • Flavor: Sweet, Spices

    By M. X. on 20/Jan/2020 :

    Title : Good
    Comment : Very good

    By J. C. on 15/Jan/2020 :

    Title : fast... ans furious !
    Comment : Géniales graines, ont toutes germées j'en suis là pour le moment. Premium comme d'habitude !

    By M. H. on 14/Jan/2020 :

    Title : Ok
    Comment : Versand hat etwas gedauert jedoch um Weihnachtszeit daher noch OK! Jedoch zufrieden 9 von 10 gekeimt

    By L. H. on 07/Jan/2020 :

    Title : Royal
    Comment : Site de bonne qualité

    By R. B. on 02/Jan/2020 :

    Title : Critical Auto
    Comment : Germination 100%, fast shipment, very pleasant shopping! Thank you!

    By F. F. on 30/Dec/2019 :

    Title : 5 stelle
    Comment : Ottimo prodotto

    By G. M. on 05/Nov/2019 :

    Title : 👍🏼
    Comment : Muy buen producto llego rapido y discreto

    By D. R. on 29/Oct/2019 :

    Title : Critical
    Comment : Muito boa!!!!

    By D. M. on 28/Oct/2019 :

    Title : Schnelle Lieferung
    Comment : Produkt ist zügig ausgeliefert worden und die Samen befinden sich schon in der Erde😁☺️😁

    By B. S. on 25/Oct/2019 :

    Title : Nikel
    Comment : très bonne graine pousse très vite

    By R. S. on 22/Oct/2019 :

    Title : Top
    Comment : Alles Super weider so

    By D. M. on 02/Oct/2019 :

    Title : royal critical auto
    Comment : Very good plants, a lot bigger than i thought they were going to be. They still have 4 weeks left and there about 4 1/2 feet tall. 39 germinated out of 40 which compared to other breeders ive used lately is amazing. so all in all im very happy with purchase. cheers royal queen seeds.

    By J. S. on 23/Sep/2019 :

    Title : Tolles Blümchen !!
    Comment : Habe drei Samen bestellt,alle sind super gewachsen,leider haben zwei davon gezwittert 😣 Aber der Grow war unkompliziert,der Geschmack super und die Wirkung mehr als ausreichend. Hoffe das beim nächsten mal die Mädels auch Mädels bleiben.

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From James | 2018-09-20 23:55:18

Are they feminized

Royal Queen Seeds Team

All our seeds are feminized.

From Mitch | 2017-12-22 14:40:51

Bonjour je voudrais savoir le dosage (NPK) pour la Royal Critical Automatique

Royal Queen Seeds Team

Please check the below entrance from our blog for assistance on this matter.

From taieb hachicha | 2017-12-10 19:03:07

Bonjour, Je vous supli de repondre a mes 2 - 3 question, je compte acheter une tente de plantation 120cm2 et de 200cm de hauteur, cbt de pied je peut faire pousser et si je peux nourrir des graines d'autofloraison qu'avec de l'eau (chaque site ou forum me répond par une autres questions genre ca dépend des graines et tt ms en moyenne sur ce type de graines à savoir Royal Critical Automatic) SVP REPONDEZ MOI

Royal Queen Seeds Team

Please check out the below link to for a more accurate information regarding this matter.

From sturm | 2017-10-21 16:51:13

how many degrees is the optimun condition for this kind of plant?

Royal Queen Seeds Team

Please see below> 18-22 C - average 20-22 C optimal temperature for vegetation 22-25 C optimal temperature for flowering

From Boubaka | 2017-10-19 17:34:29

Les graine autoflorissante que vous vendez sont elles féminisées?

Royal Queen Seeds Team

All our seeds are Feminized.

From Duran | 2017-10-12 16:20:19

Bonjour Concernant les pots quel litrage conseillé vous pour un rendement optimal pour cet variété (11l 15l 18l) Merci d'avance

Royal Queen Seeds Team

There is not a specific pot size per strain.The size of the pot will have an influence on the size of your plants, on yields, and on the frequency you water your plants.

From Picard | 2017-10-07 12:04:19

Bonjour, merci de m'indiquer le nombre de semaines de croissance et de floraison pour la Royal Critical Auto floraison. Cordialement, Michel Picard

Royal Queen Seeds Team

Our data sheet is showing a flowering period of 6-7 weeks, always if the plant is grown under optimal conditions.

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All cannabis seeds sold at Royal Queen Seeds are solely for personal use intended only for adults (over 18 years old). We do not supply seeds to large scale or commercial growers. We reserve the right to refuse sale if we suspect this term is being breached.