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Strain facts

Checked Oct 21, 2026 · 4 sources

Mac Stomper is a hybrid that's easy to grow. It was bred from MAC and Grape Stomper OG. Its THC is about 21% (sources say 15–25%), higher than 46% of the 2,347 strains in our database that list THC. It flowers in about 9 weeks (one source lists 8–10 weeks).

Type
Hybrid
THC
About 21%15–25% across 3 sources
Top terpenes
  1. Myrcene earthy, musky
  2. Caryophyllene peppery, spicy
  3. Linalool floral, lavender
Commonly reported effects
Euphoric, relaxed, happy, focused and hungry
Flavors
Apple, grape, berry and diesel
Lineage
MAC × Grape Stomper OG
Grow difficulty
Beginner1 source
Flowering
About 9 weeks8–10 weeks · 1 source
4 sources for this profile
  1. Leafly public strain listing
  2. Weedmaps public strain listing

Grow facts

  1. AllBud (strain database) THC
  2. Crop King Seeds (seed bank) CBD, difficulty, flowering, THC, yield indoor and yield outdoor

Grow facts come from the breeder first, then seed banks and strain databases. With 2 sources we show the range and the middle; with 3 or more, the range and the median, after leaving out values far from the rest. The breeder's own value is the anchor, unless it is far from every other source (outside their range and more than 20% from their median); then we show the full range and the median of all of them. A fact from a single source is marked "1 source", and a fact no source lists is left out. Yields are converted to one unit: indoor per square meter, outdoor per plant.

CTU writes every profile from these facts; we do not copy other sites' descriptions. Values that are a generic default in the source data are left out. Last checked Oct 21, 2026.

Source: CTU strain dataset (public strain listings and breeder info, checked by CTU), verified Oct 2026. Potency, flavor and effects vary by grower, batch and plant. Facts no source lists are left out.

How to grow Mac Stomper

The grow facts a breeder or public strain listing gives for Mac Stomper.

Flowering time
About 9 weeks8–10 weeks · 1 source. Slower than 51% of strains with a listed time
Yield indoor
About 650 g/m²1 source
Yield outdoor
About 700 g per plant1 source
Difficulty
Beginner1 source. One of 452 beginner-rated strains

Flowering window (weeks after the switch to 12/12)

  1. 1
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Sources: the breeder, seed banks and strain databases listed under sources, checked Oct 2026. Percentages compare with every strain in our database that lists the same fact.

Learn to grow Mac Stomper: Indoor & Outdoor Growing course, $199

About Mac Stomper

Mac Stomper is listed in public strain databases as a hybrid. The parent strains on record are MAC and Grape Stomper OG.

Mac Stomper THC level

Public listings give Mac Stomper a THC level of 15%, which is below most strains we track. Compared with all strains in our research dataset that have their own THC figure, it is higher than roughly 9% of them. Potency varies by grower, batch and lab, so read these numbers as typical values, not guarantees.

What does Mac Stomper smell and taste like?

Flavor notes reported for Mac Stomper: apple, grape, berry and diesel. Its top listed terpenes are myrcene (earthy, musky), caryophyllene (peppery, spicy) and linalool (floral, lavender-like). Myrcene is the lead terpene for about 44% of the high-confidence strains in our dataset, so it is a common profile. Terpenes shape smell and taste; their levels change from batch to batch.

Reported effects of Mac Stomper

People who have tried Mac Stomper most often report feeling euphoric, relaxed, happy, focused and hungry. These are user reports, not promises. Effects differ from person to person and depend on dose, setting and tolerance.

Mac Stomper family tree

Its parents, from published lineage.

Parents

Grape Stomper OG

This strain

Mac StomperHybrid · 15–25% THC · 8–10 wk

Similar strains

Matched on shared parents, top terpenes, type and THC. Never on medical use.

Hybrid

Blueberry Mac

THC
20–31%
Flowering
8–9 wk
Terpene
Caryophyllene
Effect
Focused
Difficulty
Advanced
Save
Sativa

Granny Mac

THC
22–30%
Flowering
8–9 wk
Terpene
Limonene
Effect
Energetic
Difficulty
Intermediate
Save
Hybrid

Jungle Mac

THC
24–26%
Flowering
9–10 wk
Terpene
Limonene
Effect
Energetic
Difficulty
Intermediate
Save

Hybrid strainsMyrcene strainsApple strainsStrains bred from MAC

Where to buy

Find licensed dispensaries in your state

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Grow it

How to grow Mac Stomper

Flowering time, height and difficulty from the sources, then the full method in the Growing course.

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