MAC Dawg XXL Auto by Silent Seeds

MAC Dawg XXL Auto Strain Info

Ever imagined an autoflower that grows like a beast, hits like a truck, and smells like a high-end dispensary?

MAC Dawg XXL Auto from Silent Seeds isn’t here to play—it’s here to completely change the game.

This isn’t just another automatic strain trying to catch up to photoperiod legends.

It was born from a powerhouse cross between Chemdawg Bx1 and MAC Auto, bringing together old-school potency with next-gen autoflower efficiency.

Think of it as the lovechild of two cannabis icons, packed into a lightning-fast format that delivers brutal resin, explosive flavor, and massive yields.

Forget what you thought you knew about autos—this one stands tall and proud with photoperiod swagger.

Flowering Time & Yield

MAC Dawg XXL Auto doesn’t waste time—it puts on serious muscle in just 58 to 63 days from seed to harvest.

Outdoors, it can reach up to 140 cm (4.6 ft) in height, flexing its strength and showing off dense, bushy branches loaded with flower.

Indoor growers can expect a jaw-dropping 650 g/m² (22.9 oz/yd²), while outdoor giants can reward you with up to 1300 g/plant (45.8 oz).

That’s not a harvest—that’s a celebration.

Its structure screams power: dense like a shrub, but elegant like a champion, with tight internodes and robust lateral branches inherited straight from its MAC Auto parent.

This autoflowering monster was designed to deliver not just quantity, but top-shelf quality with XXL output.

Effects and Aroma

One puff and you’ll get it—MAC Dawg XXL Auto isn’t your average auto.

Its effects are deeply relaxing, physical, and long-lasting, the kind of high that wraps around your body like a warm blanket after a long day.

Perfect for winding down, kicking back, or just sinking into your couch while your mind drifts somewhere hazy and happy.

The flavor profile is a wild ride through Kush, gas, exotic woods, lemon, and spicy pine.

Each toke is like opening a treasure chest in a mechanic’s workshop tucked inside a forest—fuel-soaked, citrusy, woody, and full of attitude.

Terps come through loud, bold, and layered, giving it serious appeal for both connoisseurs and extraction fanatics.

With a THC content between 24% and 29%, this strain doesn’t just knock—it kicks the door down.

CBD stays discreet, under 0.2%, keeping the spotlight on its psychoactive power.

Whether you’re blazing it raw or pressing it into live rosin, the experience is pure premium fire.

And yes, these are autoflowering cannabis seeds, so no flipping light schedules or second-guessing—just plug, grow, and boom.

MAC Dawg XXL Auto seeds are a bold move for growers who want it all—power, production, and that unforgettable punch.

Grower's Tips & What Stands Out Most

What really blows us away about MAC Dawg XXL Auto is how it manages to look, grow, and perform like a top-shelf photoperiod strain—but without needing the long schedule or intense management.

We’ve seen it hold strong even in unpredictable outdoor climates, and that’s thanks to its solid resistance to pests and fungal diseases.

This strain can handle its own in slightly humid areas, but it truly thrives in temperate, Mediterranean, or dry sunny climates.

It performs best when given plenty of light and consistent air circulation, especially indoors, where it stretches with power during the first weeks.

Despite its premium results, MAC Dawg XXL Auto isn't hard to grow, which is rare for a plant this productive and resin-heavy.

We’d recommend it to growers with a bit of experience under their belts, but even motivated beginners can get beautiful results with a little care.

Using organic nutrients and training techniques like LST can help push the yields even further without stressing the plant.

Just keep your eyes on the feeding schedule—this girl likes to eat well, especially during flower.

Honestly, what gets us most excited is that crazy XXL yield paired with that compact, tight structure—you don’t often see both in one autoflower.

It’s that rare strain that fits both personal home grows and large-scale professional ops.

Strain Characteristics

Strain name: MAC Dawg XXL Auto

Seed type: Feminized Autoflowering

Breeder: Silent Seeds

Genetics: Chemdawg Bx1 x MAC Auto

Genotype: Hybrid

Indoor flowering time: 58–63 days

Outdoor harvest: Late June to late October

Indoor yield: Up to 650 g/m² (22.9 oz/yd²)

Outdoor yield: Up to 1300 g/plant (45.8 oz)

Outdoor height: Around 140 cm (4.6 ft)

THC content: 24–29%

CBD content: Less than 0.2%

Resistance to pests and diseases: High

Recommended climate: Temperate, dry, Mediterranean

Difficulty: Medium

Flavor profile: Kush, fuel, exotic wood, pine, lemon, spices

Effects: Physical, relaxing, long-lasting, intense

FAQ - MAC Dawg XXL Auto

Is MAC Dawg XXL Auto sativa or indica?

MAC Dawg XXL Auto is a balanced hybrid with strong indica-leaning effects.

Its physical and relaxing high comes mainly from its indica side, ideal for evening use or stress relief.

In general, sativa strains tend to offer energizing, cerebral effects with taller, airier plants, while indicas deliver body-centered relaxation and denser, shorter growth.

This strain brings the best of both worlds, with indica power and hybrid structure wrapped into an autoflowering format.

How long does MAC Dawg XXL Auto take to harvest?

MAC Dawg XXL Auto finishes its full cycle in just 58 to 63 days from seed.

That includes both the vegetative and flowering phases, thanks to its autoflowering genetics.

What kind of yield can I expect from MAC Dawg XXL Auto?

Indoor grows can yield up to 650 g/m² (22.9 oz/yd²), while outdoor plants can produce as much as 1300 g/plant (45.8 oz).

These are XXL results, especially impressive for an autoflower strain.

Does MAC Dawg XXL Auto need special care to grow well?

This strain is medium in difficulty and thrives with good light, airflow, and balanced nutrients.

It responds well to LST and organic feeding but doesn’t require advanced techniques to perform.

Can I grow MAC Dawg XXL Auto outdoors in a humid climate?

While it prefers dry, temperate, or Mediterranean conditions, MAC Dawg XXL Auto shows good resistance to pests and mold.

With proper spacing and ventilation, it can handle moderate humidity levels outdoors.