Pineapple Muffin Auto is a signature Humboldt Seed Company cross that tastes just like pineapple upside-down cake. This balanced hybrid autoflower blends sweet blueberry and tropical pineapple with 17-25% THC, and it finishes in 80-100 days from germination.
The breeder built it from some of its favorite strains, Pineapple Train Wreck, Sour Apple and Blueberry Muffin, aiming to capture the strongest traits of each. The result is a vigorous, mold-resistant plant that grows both wide and tall, sprawling more than many growers expect from an autoflower.
The buds are dense and bright green, often flecked with subtle purple. Humboldt Seed Company sums up the experience as a sweet smoke that may leave you relaxed and productive, a combination that suits daytime as easily as early evening.
With moderate potency and a relatively low CBD level of 0.14%, Pineapple Muffin Auto is an approachable choice for consumers who value flavor first and want a session that stays pleasant and manageable.
Lineage and Breeding of Pineapple Muffin Auto
Pineapple Train Wreck lends tropical fruit and vigor, Blueberry Muffin adds its sweet berry aroma, and Sour Apple contributes the autoflowering trait. Humboldt Seed Company combined these lines into a signature cross that carries a recognizable dessert-fruit profile through to the automatic version.
The breeder emphasizes resilience. Mold resistance runs through the line, and the plants show strong vigor from early growth, building a wide, tall frame that supports plenty of bud sites.
Aroma, Flavor and Effect
The aroma is led by sweet blueberry, with bright pineapple notes rising behind it. Together they evoke a freshly baked pineapple upside-down cake. The breeder’s tasting tags also point to wood, pine and a touch of skunk underneath, which keeps the sweetness grounded.
Effects are described as relaxed and productive. The high tends to calm the body without slowing the mind too much, so it pairs well with light chores, creative hobbies or an easy social afternoon.
THC is listed at 17-25%, a moderate range that suits consumers who want flavor and balance rather than a knockout punch.
Growing Pineapple Muffin Auto Indoors and Outdoors
Pineapple Muffin Auto flowers automatically, so indoor growers can run 18/6 or 20/4 lighting from start to finish. The breeder lists 80-100 days from germination. Because the plants grow wide and tall, allow extra space in the tent and consider a larger final container.
Plant directly into final pots of 5 gallons (19 L) or more and use LST early to control height and spread the canopy. Its natural mold resistance helps in humid rooms, but keep airflow strong as the dense buds fill in during late flower.
Outdoors, sow after the last frost and give it full sun. The vigorous, sprawling growth habit can produce a sizable plant by harvest time. In regions with a long season, a second planting can follow the first.
Pineapple Muffin Auto Characteristics
| Strain type | Autoflowering feminized |
| Genetics | Pineapple Train Wreck x Sour Apple x Blueberry Muffin |
| Indica/Sativa | Balanced hybrid |
| THC | 17-25% |
| CBD | 0.14% |
| Effect | Relaxed, productive |
| Flavor/Aroma | Blueberry, pineapple, with wood, pine and skunk undertones |
| Flowering time / Seed to harvest | 80-100 days from germination |
| Yield | Good; vigorous, wide and tall plants |
| Characteristics | Mold resistant; dense bright green buds with purple flecks |
| Best cultivation technique | Large final pots, early LST, 18/6 or 20/4 light |
FAQ
Is Pineapple Muffin Auto indica or sativa?
It is a balanced hybrid of indica and sativa genetics.
How long does Pineapple Muffin Auto take to grow?
Humboldt Seed Company lists 80-100 days from germination, with no light switch required.
What does Pineapple Muffin Auto taste like?
Sweet blueberry and pineapple, reminiscent of pineapple upside-down cake, with wood, pine and skunk undertones.
How strong is Pineapple Muffin Auto?
THC is listed at 17-25%, with CBD around 0.14%, for moderate potency.
Is Pineapple Muffin Auto mold resistant?
Yes. The breeder describes it as a vigorous, mold-resistant plant.
How big does Pineapple Muffin Auto get?
It grows wide and tall for an autoflower, so allow extra space and a generous container.


