MK-Ultra REG Regular Seeds

Discontinued.

MK-Ultra REG from TH Seeds is a classic strain offered as regular seeds for growers who prefer working with natural male and female plants. This line is suited to cultivators interested in selection, breeding projects, or maintaining their own mother plants.

The strain is known for its distinctive character and consistent structure, making it a practical choice for indoor or controlled outdoor setups. MK-Ultra REG allows experienced and curious growers alike to explore stable traits across different phenotypes.

  • Regular seeds suitable for breeding and phenotype selection projects
  • Well-regarded strain with a recognizable and consistent growth pattern
  • Adaptable to a range of controlled indoor or greenhouse environments
  • Offers the opportunity to select and maintain long-term mother plants
  • Appeals to growers who value working with traditional, unaltered seed lines

About MK-Ultra REG

MK-Ultra REG from TH Seeds is a regular line created from the classic pairing of G-13 crossed with OG Kush. These seeds are aimed at growers who want access to both male and female plants for breeding projects or for selecting their own favorite phenotypes.

This photoperiod strain is known for its heritage and versatility in a range of indoor and outdoor setups. With MK-Ultra REG, cultivators can explore the full expression of its parent genetics while selecting plants that match their preferred structure, aroma, and resin traits.

Key details

  • Strain name: MK-Ultra REG
  • Breeder: TH Seeds
  • Genetics: G-13 x OG Kush (G-13 crossed with OG Kush)
  • Seed type: non-feminized photoperiod seeds
  • Suitable for growers interested in selection and breeding work

Growing notes

  • Performs well in controlled indoor environments where light and climate can be managed.
  • Can also be cultivated outdoors in regions with a stable, temperate season.
  • Growers often use training techniques such as topping or low-stress training to manage height and shape.
  • As with many G-13 and OG Kush hybrids, stable nutrition and good airflow are important for healthy development.

What to expect

Growers typically look for dense, resinous flowers that reflect a mix of G-13 and OG Kush traits, with phenotypes that may lean toward either parent. MK-Ultra REG seeds can show variation in structure, aroma, and finishing times, giving cultivators room to select plants that fit their personal preferences and garden conditions.

FAQ

  • Q: What kind of seeds are MK-Ultra REG?
    A:
    MK-Ultra REG are non-feminized photoperiod seeds, meaning they can produce both male and female plants, which is useful for breeding and making future seed stock.
  • Q: What are the parent genetics of MK-Ultra REG?
    A:
    The strain is a cross of G-13 and OG Kush, combining two well-known lines into a single hybrid.
  • Q: Is there a specific flowering time listed for MK-Ultra REG?
    A:
    A precise flowering time is not provided; growers generally monitor trichomes and overall plant maturity to decide when to harvest.
  • Q: Is MK-Ultra REG suitable for beginners?
    A:
    There is no official difficulty rating, but new growers should be prepared to identify plant sex and manage both male and female plants if they are keeping all seedlings.
  • Q: Can MK-Ultra REG be used for making new crosses?
    A:
    Yes, many cultivators choose these seeds specifically for breeding projects, using selected males and females to create their own hybrids or preserve favored traits.
Indoor Yes
Outdoor Yes
Cannabis Genetics G-13 X OG Kush = G-13 crossed with OG Kush
Flowering Time 8-9 weeks
THC Strong
Cannabis Cup 203 & 2004 HTCC
Cup Winner Yes
Height notes from 1 to 1.2 meters
Flavour Pine forest is a beautiful place to go for a walk.
Yield Average
Yield Notes Up to 350 grams per square meter.
Mainly Indica Yes
Sativa / Indica Type Indica
Greenhouse Yes
TH Seeds

🌱 TH Seeds – Trusted Cannabis Genetics

TH Seeds is a respected seed bank known for producing high-quality cannabis seeds with a focus on potency, flavor, and reliability. Whether you're looking for feminized, autoflowering, or CBD-rich strains, TH Seeds offers a well-rounded catalog that meets the needs of beginners and expert growers alike.

With a commitment to genetic stability and grower satisfaction, TH Seeds ensures consistent germination, resilient plants, and impressive yields across various environments.

🚀 Why Choose TH Seeds?

  • 🌎 Diverse and stable cannabis genetics
  • 🌿 Great for indoor and outdoor grows
  • 🏆 Reputation for quality and performance
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  • 🔑 Trusted by growers worldwide

If you value genetic excellence, fast flowering, and potent results, TH Seeds is a brand you can trust for your next grow.

🌱 Growing Cannabis Seeds – Common Questions

💧 How do I soak cannabis seeds before planting?

Place the seeds in a glass of cold tap water or rainwater and keep the glass in a dark place. Wait between 2 and 10 days until the seeds begin to sprout.

🌿 How deep should I plant germinated seeds?

Plant sprouted seeds about 0.5 cm deep in light, moist soil with the root pointing down. Handle gently to avoid damaging the sprout.

💧 How moist should the soil be for seedlings?

Keep the soil evenly moist but never soaked. Overwatering can drown young seedlings. A small propagator helps maintain humidity.

⚠️ What are common mistakes when growing cannabis seeds?

❌ Soil that’s too wet – the seedling may rot.
❌ Planting too deep – the seedling may not reach the surface.
Always ensure good drainage and shallow planting.

🌱 Do I need special soil or pots for growing?

Use seed-raising or herb soil and pots with drainage holes so excess water can escape. This prevents root rot and promotes healthy growth.

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