Grandaddy Black feminized seeds


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.

For Sleep

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

    AKA seed bank. They create and preserve cannabis genetics, then we get them to you.

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    Original Sensible Seeds
  • Type of seeds

    Regular or feminized. Pick feminized if you want female plants only.

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  • Type of seeds

    Either autoflowering or photoperiod. Both have their pros and cons, but growing autos is easier.

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  • Suitable for growing

    This strain is perfect for growing both indoors and outdoors.

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    Indoor, Outdoor
  • Effect *

    Each strain produces a certain effect on your body. This is what you can expect from this variety.

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    Full physical relaxation
  • Genetics

    Genetic composition of the strain. Shows parent strains that were used to create this particular variety.

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    Grandaddy Purple x Black Domina
  • Height

    This is how tall the plant can become. Use this info when planning your grow space.

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    90 - 140 cm indoors
    120 - 180 cm outdoors
  • Harvest

    This is how much bud you can get from this variety come harvest time.

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    600 g/m² indoors
    800 g/plant outdoors
  • Indoor flowering time

    The length of the flowering stage for photoperiod strains, or seed-to-harvest time for autoflowers.

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    60 - 65 days
  • Outdoor finish

    This is when your plant will be ready for harvest when grown outdoors. Make sure it's still warm enough by then!

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  • % Sativa/ Indica/ Ruderalis

    The ratio of Sativa/Indica/Ruderalis in this particular variety.

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    5% Sativa / 95% Indica
  • THC

    The main psychoactive compound in cannabis. The higher THC level, the more potent the strain.

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    23 %

*Herbies sells cannabis seeds exclusively as souvenirs that aren’t meant for cultivation or germination. Customers should be aware that the germination of cannabis seeds is illegal in most countries. Herbies sells cannabis seeds exclusively for collecting and preservation for future generations. We advise customers to check with their local laws before germination, as Herbies does not accept responsibility for the illegal use of our products.

  • 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.