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Grumpz
Feminized
Grumpz delivers a heavy, calming high built on a 22 to 26 percent THC range. You will get earthy and citrus flavours with a sweet berry finish. The plant stays medium in size and suits both indoor and outdoor setups. Growers report solid resin production and dependable flowering in 8 to 9 weeks. MasterSeeds offers Grumpz seeds for growers looking for a resilient, sleep-friendly cultivar.
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STRAIN PROFILE
Complete Cannabis Strain Specifications
| Trait | Value |
|---|---|
| Type | Indica-dominant hybrid |
| THC | 22-26% |
| CBD | 0.5-1% |
| Grow Difficulty | Intermediate |
| Flowering Time | 8-9 |
| Yield | High (up to 600 g/m2 indoor) |
| Height | Medium (80-150 cm) |
| Environment | Indoor/Outdoor |
| Effects | Relaxation, Euphoria, Sleepy |
| Flavors | Earthy, Citrus, Berry |
| Genetics | Grumpz OG x Purple Zkittlez |
| Climate | Temperate to cool |
Grumpz Strain Information and Characteristics
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Strain Type:
Grumpz is an indica-dominant hybrid with clear body presence. You will notice a calming stone with a mild cerebral lift.
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THC Content:
THC sits between 22 and 26 percent on average. Expect strong effects at those levels for seasoned users.
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CBD Content:
CBD remains low at roughly 0.5 to 1 percent. Medical relief here comes from THC-driven action more than CBD balance.
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Grow Difficulty:
Growing difficulty rates as intermediate for soil and hydro setups. You should train branches and monitor nutrients to keep stretch under control.
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Flowering Time:
Flowering runs 8 to 9 weeks indoors. Outdoor plants finish by early October in many temperate regions.
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Expected Yield:
Indoor yield reaches up to 600 grams per square meter with good technique. Outdoor plants return 400 to 600 grams per plant in long seasons such as Ontario or BC.
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Plant Height:
Plants reach medium height at 80 to 150 cm. You can train indoors to limit vertical growth and boost bud sites.
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Growing Environment:
Grumpz suits both indoor and outdoor grows. Provide cool night temps outdoors for best resin and terpene retention.
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Expected Effects:
Effects hit with deep relaxation paired with a mellow uplift. Late-night users report quick sleep onset after the peak.
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Genetic Lineage:
Genetics list Grumpz OG x Purple Zkittlez as the parent cross. Breeders selected for resin, stable growth, and consistent aroma.
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Seed Type:
Seeds come feminized for predictable female crops. MasterSeeds supplies Grumpz seeds to growers across Canada through our catalog.
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Preferred Climate:
Best climate is temperate to cool with a dry finish during harvest. In Canada, harvest before autumn rain to preserve trichomes.
Frequently Ask Questions
Everything you need to know about this strain.
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Questions & Answers
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Q: My plants are stretching in week two. What should I do?
A: Reduce light distance slightly and start low stress training to bend the main stem. Add a mild feed and watch new node spacing.
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Q: Leaves show slight yellowing in week three. Is that a deficiency?
A: Check pH first and correct to 5.8 to 6.5 depending on medium. Adjust nitrogen levels slowly if imbalance persists.
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Q: How often should I flush before harvest?
A: Flush with plain water for seven to ten days before harvest. That helps remove excess salts and smooth the final flavour.
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Q: I want denser buds. What changes help?
A: Keep night temperatures 5 to 8 C lower than day temps during flowering. Maintain stable humidity and provide full bloom nutrients.
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Q: Any pest issues to watch outdoors?
A: Watch aphids and spider mites during warm spells. Use neem oil sprays early and predator insects for prevention.
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