Purple Rain Auto by Bluedog Genetics

Purple Rain Auto by Bluedog Genetics is a compact, fast-flowering autoflower with stunning purple buds and rich fruity flavors.

Ideal for cooler climates, this easy-to-grow strain delivers relaxing effects, sweet grape aromas, and solid yields in just 9 weeks.

Perfect for growers craving color, flavor, and speed in one irresistible package.

Purple Rain Auto Strain Info

Imagine cracking open a jar and being hit with the sweet, juicy scent of grapes and berries, followed by a creamy, almost dessert-like finish—yeah, that’s the magic of Purple Rain Auto.

This autoflowering cannabis seeds from Bluedog Genetics pack flavor, power, and compact charm into one seriously tempting strain.

No need to be a master grower to enjoy it—this is the kind of plant that makes you look like a pro, even if it's your first time growing marijuana seeds.

Genetically speaking, she leans heavy on the Indica side—70% Indica, 30% Sativa—which explains her chill, soothing effects and short, stocky build.

She’s a direct descendant of good vibes and fruity fire, designed for growers who crave a quick, flavorful ride from seed to harvest.

Picture a compact queen growing just 50 to 80 cm (20 to 31 inches), both indoors and outdoors, making her perfect for small spaces or stealthy balcony grows.

Her deep green leaves are the perfect backdrop for dense, resin-coated buds bursting with purple and lilac hues that catch the light like gemstones.

Break a nug open and you're met with that sticky-sweet aroma—grape jam, wild berries, and cream—that clings to your fingers and makes your mouth water.

Flowering Time & Yield

This girl doesn’t waste time—she finishes her cycle in just 9 weeks from seed, so you won’t be stuck waiting around for results.

Indoors, she’ll reward your patience with a solid 350–450 grams per m² (12.3–15.9 oz/ft²), while outdoor growers can expect 50–150 grams per plant (1.8–5.3 oz/plant), depending on conditions.

Her size stays manageable, but her buds sure don’t—they come out thick, colorful, and dripping with trichomes.

Cooler climates? No problem—she thrives in lower temps, making her a go-to for growers dealing with less-than-tropical weather.

Effects and Aroma

If you’re looking for a strain that hits like a cozy blanket on a rainy night, Purple Rain Auto delivers hard.

With THC levels ranging between 18% and 22%, she strikes that sweet spot between mellow and powerful—just enough to unwind without melting into the couch completely.

Expect the holy trinity of chill: relaxation, munchies, and deep sleep.

She’s the kind of strain that makes food taste better, music sound richer, and the couch feel like a five-star hotel bed.

Crack open a jar and your nose is greeted by sweet grape candy, wild berry compote, and a creamy twist that makes her unforgettable.

Perfect for nighttime sessions, lazy Sundays, or anytime you want to shut the world out and just float.

And for those growing with intention, she’s got solid therapeutic cred too—great for appetite stimulation, pain relief, and getting that stubborn sleep to finally show up.

Growing Tips & What We Love About Purple Rain Auto

If you're working with limited space or need to keep things discreet, this strain is one of our go-to picks for tight grows or stealthy balconies.

We’ve noticed she holds up surprisingly well against common pests and fungal problems, which is always a win when you want low-maintenance success.

That resilience, combined with her short life cycle, makes her an easy favorite for growers who want results without stress.

She thrives best in cooler temperatures—think 18–24°C (64–75°F) during the day—so she’s a solid option for outdoor growers in northern regions or colder months.

While she’s beginner-friendly overall, we still suggest keeping an eye on humidity levels, especially during flowering, just to keep those dense buds safe from mold.

Light training methods like LST can work wonders to open her up and boost yields without stressing her out.

What really grabs our attention, though, is her incredible flower structure and that eye-popping purple color that shows up even more vividly in cooler temps—it's just pure bag appeal.

Every time we grow her, we end up staring at the buds like proud parents.

Purple Rain Auto Strain Characteristics

Seed Type: Feminized Autoflowering

Genetics: 70% Indica / 30% Sativa

THC Content: 18–22%

CBD Content: Low

Flowering Time: 9 weeks from seed

Indoor Yield: 350–450 g/m² (12.3–15.9 oz/ft²)

Outdoor Yield: 50–150 g/plant (1.8–5.3 oz/plant)

Indoor Height: 50–80 cm (20–31 inches)

Outdoor Height: 50–80 cm (20–31 inches)

Climate: Best in cool conditions

Frequently Asked Questions

Is Purple Rain Auto sativa or indica?

Purple Rain Auto is an indica-dominant strain, with a genetic breakdown of 70% indica and 30% sativa.

Indica strains are typically known for their compact growth, faster flowering times, and relaxing, body-focused effects.

In contrast, sativa strains usually grow taller, take longer to flower, and are associated with more energetic, cerebral highs.

Purple Rain Auto leans into her indica roots with a soothing effect and a short, bushy structure ideal for indoor and small-space grows.

How long does Purple Rain Auto take to flower?

Purple Rain Auto has a fast flowering time of just 9 weeks from seed to harvest.

This makes her a great choice for growers who want quick results without compromising on quality or yield.

How much does Purple Rain Auto yield?

Indoors, growers can expect between 350–450 grams per square meter (12.3–15.9 oz/ft²), while outdoor harvests range from 50–150 grams per plant (1.8–5.3 oz/plant).

These numbers can vary slightly depending on lighting, training techniques, and overall conditions, but she’s consistently generous for her size.

Is Purple Rain Auto a good strain for beginners?

Yes, absolutely—Purple Rain Auto is considered easy to grow, thanks to her resilience, compact size, and low-maintenance nature.

She’s resistant to common pests and mold, adapts well to cooler climates, and doesn’t need complex training techniques to perform well.

Can I grow Purple Rain Auto in a cold climate?

Yes, she actually prefers cooler conditions and performs well in temperatures between 18–24°C (64–75°F).

This makes her a solid choice for growers in northern regions or for late-season outdoor runs when temperatures start to dip.

Difficulty: Easy

Pest & Disease Resistance: High

Flavors: Grape, Berries, Creamy, Sweet, Fruity

Effects: Relaxed, Sleepy, Munchies

Therapeutic Use: Appetite stimulation, Pain relief, Sleep aid