Claustrum feminized seeds



Claustrum: Huge Trees Dripping with Resin

The Claustrum feminized cannabis seeds grow into Sativa plants taking up to 11 weeks to produce their large, resinous flower. These have a piney flavor with church-like smells. Yields from 500-600 g and THC levels up to 21%! Not ideal for small spaces or novice consumers!

By crossing Kali Mist X Super Silver Haze X Jack Herer, Positronics has elaborated a resilient strain that produces plants that can grow up to 5 m tall, with Christmas tree structure. Indoor growers must ensure a growing space with at least 1.5 m of vertical space. Beginner growers with enough space will be able to learn about Sativa genes and cloning with this easy to grow strain that has long internodal spacing.

This wonderful cultivar takes 65-75 days to finish forming its buds. Indoor yields are around 500 g/m2. Outdoor yields increase up to 600 g/plant and should be ready by the first week of November.

  • Indoor light per m2: 400-600 Watts (HID), 240-300 Watts (High Efficiency LEDs);
  • 1.0-1.4 EC during vegetation; 1.5-1.8 EC during flowering;
  • Excellent for SCROG and SOG;
  • Flowers might need support.

Exotic aromatic profile

Superb aromatic profile that includes cedar, spices, and incense, resulting in fresh flavors that remind of eucalyptus trees. The 21% THC and 0.1% CBD levels provide euphoric highs that might make some hallucinate. Better go easy on these herbs!


  • Brand

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

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    Positronics 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

*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.

Claustrum (Positronics Seeds) related collections

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