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Mac Rib

Regular

Mac Rib is a resin-heavy hybrid with bright citrus notes and reliable performance under LED setups in the UK.

Why choose Mac Rib?
  • Dense, resinous colas under LEDs
  • Zesty citrus top notes with diesel depth
  • Balanced high for day or early evening use
THC 22-26%
CBD 0.5-1%
Lineage MAC x Chemdawg
Genotype Hybrid
Difficulty Intermediate
Flowering 8-10 weeks
Height Medium (0.8-1.5 m)
Yield Medium-high
Taste Citrus, Earthy, Diesel
Seed Type Feminised
Climate Variable British weather
Effects Uplifting, Focused, Relaxed
Environment Indoor / Outdoor

About Mac Rib

Mac Rib is a resinous hybrid bred from MAC x Chemdawg that offers a clear-headed uplift followed by gentle body relaxation. It performs well in controlled indoor environments and can mature outdoors with careful site selection; the variety responds positively to LED lighting, topping and SCROG techniques, producing medium-high yields of dense, citrus-diesel buds that cure to a smooth, potent smoke.

Grow Difficulty:

Growing Mac Rib under variable British weather requires regular attention to humidity swings. Indoors, this strain is intermediate in difficulty and benefits from steady ventilation and pest checks.

Flowering Time:

Flowering takes around eight to ten weeks under good conditions. Trichome production ramps up in the final fortnight for a resinous finish.

Yield:

Yield is medium to high when plants enjoy stable light cycles and tailored nutrition. Indoor growers can produce dense colas while outdoor results depend on season and site conditions in Durham.

Height:

Plants reach a medium height with a dominant central cola and well-spaced side branches. With topping and training they stay manageable and respond well to SCROG.

Environment:

Indoors Mac Rib responds particularly well to LED setups with controlled canopy management in Durham grow spaces. Outdoors it prefers a sheltered, sunny site and will need protection from wind and heavy rain common to the area.

Climate:

Growing Mac Rib in Durham means planning for cool spells and sudden showers that typify variable British weather. Good drainage, wind protection and microclimate management in Durham gardens improve reliability and final yields.

Frequently Asked Questions

Common questions about this strain, covering growth, effects, and suitability for UK conditions.

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Choose seed quantity
Selected: 5 Seeds
£53.33 £40.00
£8.00 / seed • You save £13.33
Accepted payment methods
100% Satisfaction Guarantee • Secured Payments
Urbanseedbank Support

Questions & Answers

Customer questions and answers from the Urbanseedbank team. Submit your own question and we’ll respond after review.

5 questions Answered posts are shown first.
Common question Posted by Urbanseedbank Answered
Q
My leaves are clawing under LED; what's the likely cause?
A
Verified answer
Clawing usually means overfeeding or root stress; check EC/PPM, flush lightly and ease back nutrients while ensuring pH is stable.
Common question Posted by Urbanseedbank Answered
Q
Should I defoliate Mac Rib before the stretch ends?
A
Verified answer
Light defoliation to open the canopy is fine but avoid heavy leaf removal during stretch as it can shock the plant and reduce yields.
Common question Posted by Urbanseedbank Answered
Q
How often do you water in a 10-litre pot?
A
Verified answer
Water thoroughly until runoff then wait until the top 2-3cm of soil is dry; frequency depends on environment but typically every 3-6 days indoors.
Common question Posted by Urbanseedbank Answered
Q
What flushing schedule do you use for organic grows?
A
Verified answer
I reduce feeding in the last three weeks and rely on plain water and extended dry periods to coax the plant to use stored nutrients before harvest.
Common question Posted by Urbanseedbank Answered
Q
Any finishing tips to boost trichomes?
A
Verified answer
Slightly lowering night temperature in the final two weeks and ensuring stable humidity can intensify trichome production and preserve terpenes.

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