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Grandaddy Black feminized seeds

Grandaddy Black is an almost pure Indica with Grandaddy Purple x Black Domina genetics and an excellent set of attributes, including heavy bud and resin production, a beautiful visual appearance and yields of up to 600 g/m² after 65 days of flower – the ideal cannabis strain!

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Original Sensible Seeds
Outdoor Indoor
5% Sativa / 95% Indica
THC 23 %
All characteristics

Grandaddy Black: Dark, Resinous Buds Made with Indica Genetics

Grandaddy Black by Original Sensible Seeds is a cross between Grandaddy Purple and Black Domina – two Indica powerhouses resulting in a mainly-Indica hybrid that delivers incredibly heavy yields of dense, sticky cannabis flowers.

Fantastic Indoor Strain!

The bar for indoors growers has been set very high over the past few decades and Grandaddy Black dares to push this even higher, with her fantastic package of heavy bud production, fast flowering times, and her lovely display of beautiful color toward the end of flower. This can be boosted further by lowering the temperature of the grow tent at night during the last two weeks of the grow cycle. Indoor yields for this strain are up to 600g/m2 after a 65 day flower while outdoor plants can bring in as much as 800g/plant when harvesting mid-October. Here is some more information to help you grow this strain:

  • Medium height – Grandaddy Black grows to a final height of 90-140 cm.
  • Max EC of water – 1.4 in veg, up to 1.8 in flower.
  • Water pH: 5.8-6.0.
  • Recommended lighting: Veg: 450 W CFL, Flower: 1000 W HPS.
  • Recommended nutrients: General Hydroponics General Organics range.

Excellent for Pain Relief

Grandaddy Black has a beautiful visual appearance: her buds are dark, resinous, and covered in a blanket of trichomes which make her sticky to the touch. Not only does she have fantastic visual appeal, this Indica-dominant hybrid has an intense effect which initially soothes the mind but slowly makes its way to the extremities.


  • Brand Original Sensible Seeds
  • Sex Feminized
  • Flowering type Photoperiod
  • Suitable for Outdoor
  • Suitable for Indoor
  • Effect Full physical relaxation
  • Genetics Grandaddy Purple x Black Domina
  • Height 90 - 140 cm indoors
    120 - 180 cm outdoors
  • Yield 600 g/m² indoors
    800 g/plant outdoors
  • Flowering indoors 60 - 65 days
  • Outdoor finish October
  • Genotype 5% Sativa / 95% Indica
  • THC 23 %
  • Chayton_elegantbuds420
    6 March 2020
    6 March 2020
    • Advantages
      Easy to grow 🌱
      Made me happy, relaxed and sleepy
    • Disadvantages
      Can cause dry eyes / dry mouth
    • General impressions
      Great strain to grow. This plant developed some big buds. I like the colors of the buds.
      The smell is really nice. Very sweet and fruity. I really recommend this strain. I really liked growing this beauty. She looked beautiful and smells amazing!
  • VedaOrganix
    25 March 2020
    25 March 2020
    • Advantages
      I’m so happy.. I will grow this beauty again for sure.
    • Disadvantages
      Can cause paranoia
    • General impressions
      Over all I’m happy with this plant. It’s so easy to grow her.. Just like most of my grows. I don’t care for a huge yield or big plants... Nothing fancy was done to this one. Just topped her once. I have 3 other strains to do soon from Original Sensible that I am looking forward to.
  • BorisGroen
    20 May 2020
    20 May 2020
    • Advantages
      You will feel fruity notes – something tropical. 🍍🍈 🥝
    • Disadvantages
    • General impressions
      Very satisfied. Love its tropical fruit taste! Recommended Nutrients: Love the Plagron nutrients. I do recommend her to everyone.

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