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Mac 3

Regular

Mac 3 is a sativa-leaning hybrid that performs well for attentive growers in the UK.

Why choose Mac 3?
  • Bright cerebral highs with steady body ease
  • Performs well in organic soil mixes
  • Reliable flowering and pronounced terpene profile
THC 20-24%
CBD <1%
Lineage MIRACLE ALIEN COOKIES x ALIEN DAWG
Genotype Hybrid (sativa-dominant)
Difficulty Intermediate
Flowering 9-10 weeks
Height Medium (1.0-1.5 m)
Yield Medium-high
Taste Citrus, Diesel, Earthy
Seed Type Feminised
Climate Wet Welsh valley
Effects Uplifting, Focused, Relaxed
Environment Indoor / Outdoor

About Mac 3

Mac 3 is a resilient, sativa-leaning hybrid prized for its clear, uplifting head high and firm, aromatic buds. It suits growers who favour structure and predictable flowering times; with good ventilation and organic soil it develops bright citrus and diesel notes while delivering steady yields.

Grow Difficulty:

Mac 3 is best described as an intermediate grow, requiring attention to mildew and mould in humid seasons. In a wet Welsh valley climate you must prioritise airflow, drainage and canopy management to avoid rot.

Flowering Time:

Indoor flowering finishes around nine to ten weeks under stable conditions. Outdoors in southern Britain expect ripeness from late September into early October.

Yield:

Yields are medium to high when plants receive consistent feeding and humidity control. Outdoor plants in a sheltered Oxfordshire garden can reward you with good harvests.

Height:

The plant has a compact, conical structure with strong lateral branching and firm main colas. Expect final heights around one to one and a half metres in favourable conditions.

Environment:

Indoors, Mac 3 responds well to SCROG and SOG with careful humidity control in an Oxfordshire setup. Outdoors in Oxfordshire choose a sunny, sheltered site and protect buds from late-season damp.

Climate:

Growing Mac 3 in Oxfordshire with its wet Welsh valley climate demands proactive mould management and strict canopy control. Use raised beds, free-draining compost and covers during heavy rain to protect finishing buds in Oxfordshire.

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
How did you handle bud rot last season?
A
Verified answer
I removed infected buds immediately, increased ventilation and lost one cola but saved the rest by reducing canopy density.
Common question Posted by Urbanseedbank Answered
Q
What organic amendments do you favour?
A
Verified answer
I use homemade compost, worm castings and a kelp extract feed; they keep plants vigorous and soil biologically active.
Common question Posted by Urbanseedbank Answered
Q
Any tips for outdoor timing in Oxfordshire?
A
Verified answer
Finish veg early enough to avoid late-season rain and consider outdoor covers for storms in September.
Common question Posted by Urbanseedbank Answered
Q
Do you hand-trim or machine-trim?
A
Verified answer
I hand-trim to preserve trichomes and get a nicer finish even though it takes longer.
Common question Posted by Urbanseedbank Answered
Q
What strain would you compare it to?
A
Verified answer
It sits between a bright sativa and a smooth hybrid, similar in effect to other MAC phenotypes but with a sharper diesel note.

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