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Magnum Opus
Feminized
Magnum Opus blends Northern Lights x Haze to deliver a focused cerebral lift followed by a steady body calm. Expect THC in the low to mid twenties and CBD under one percent. Plants respond well to training and produce dense, resinous buds with pine, citrus and earthy notes. Canadian growers value this strain for reliable indoor yields and a dependable outdoor finish in temperate regions. MasterSeeds offers feminized seeds with germination guidance for first time and experienced growers.
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STRAIN PROFILE
Complete Cannabis Strain Specifications
| Trait | Value |
|---|---|
| Type | Hybrid |
| THC | 22-26% |
| CBD | <1% |
| Grow Difficulty | Intermediate |
| Flowering Time | 8-9 |
| Yield | Indoor 450-550 g/m2, Outdoor 500-700 g/plant |
| Height | 80-160 cm |
| Environment | Indoor and Outdoor |
| Effects | Uplifting, Focused, Relaxing |
| Flavors | Pine, Citrus, Earthy |
| Genetics | Northern Lights x Haze |
| Climate | Temperate to continental, suited to BC, Ontario and prairie provinces |
Magnum Opus Strain Information and Characteristics
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Strain Type:
Magnum Opus is a balanced hybrid leaning toward a sativa profile. Canadian growers describe this type as energetic and steady.
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THC Content:
THC ranges from 22 to 26 percent by dry weight. Compared to popular Canadian strains like Blue Dream, Magnum Opus sits at the higher end of the spectrum.
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CBD Content:
CBD measures under 1 percent for most phenotypes. Medical users in Canada report symptom relief while using high THC, low CBD varieties.
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Grow Difficulty:
Growing difficulty rates as intermediate for home and commercial setups. You should have basic skills in pruning, feeding and pest control to reach top yields under Canadian seasonal limits.
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Flowering Time:
Indoor flowering completes in eight to nine weeks. Outdoor harvest in southern Ontario commonly occurs from late September to early October.
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Expected Yield:
Indoor yields average 450 to 550 grams per square metre under optimized lighting. Outdoor producers in BC and Ontario report 500 to 700 grams per plant in a full season.
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Plant Height:
Plants reach between 80 and 160 centimetres depending on training and container size. You will manage height with common SCROG or topping techniques in most Canadian grow rooms.
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Growing Environment:
Suitable for both indoor and outdoor cultivation. In Quebec and prairie provinces sheltered outdoor plots improve bud density and resin.
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Expected Effects:
Initial effects bring a sharp cerebral lift which improves focus and creativity. Later a steady physical calm follows and helps with evening relaxation.
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Genetic Lineage:
Genetics read Northern Lights x Haze for a balanced hybrid lineage. Breeders selected these parents to boost resin, structure and clear headspace.
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Seed Type:
Seed type is Feminized to ensure stable female crops for growers. MasterSeeds lists these seeds for sale across Canada with germination and grow notes.
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Preferred Climate:
Best climate runs from temperate coastal regions to warm continental summers. Growers in BC and southern Ontario find outdoor seasons ideal while prairie producers should protect late season plants.
Frequently Ask Questions
Everything you need to know about this strain.
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Questions & Answers
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Q: How do I reduce stretch?
A: Switch to shorter light cycles during late veg and use topping to create multiple main colas.
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Q: Which medium gives best flavour?
A: Coco with a well buffered feed gives clear terpene expression and quicker control over EC and pH.
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Q: What humidity for flowering?
A: Keep RH between 40 and 50 percent to reduce mould risk while preserving trichome quality.
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Q: How to boost resin production?
A: Apply phosphorus-rich bloom nutrients, maintain stable night temperatures and avoid overwatering during late bloom.
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Q: Any tips for outdoor growers in prairie provinces?
A: Use windbreaks, early-season protection for seedlings and prepare for frost with timely harvest planning.
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