Night Owl

Master Bruce Auto

★★★★ 4.2 · 16 reviews 100% Germ Guarantee

What our 100% guarantee means

Every Master Bruce Auto seed is guaranteed to germinate. If any seed in your pack doesn't pop, we replace it free — no hassle, no extra cost.

Auto Flower

$0.00

Out of stock

100% germination guarantee — we make it right.

99% of orders ship in 1–2 business days.

Discreet, stealth packaging on every order.

Germination Guarantee

If a seed doesn't pop, we replace it — no hassle, no extra cost.

Free Seed Rewards $84 away from 18 free seeds

Spend $120 to unlock 18 free seeds ($270 value) + free shipping.

About this strain

Type: 50/50 Sativa/Indica | Feminized Autoflower
Genetics: Bruce Banner #3 Auto F3 × Blue Power Auto F3 (Master Kush Pheno)
Flowering Time (Seed to Harvest): 70–80 Days
Yield: Average (2–4 oz per plant)
Height: Small to Medium
Resistance:
• Mold & Mildew: Moderate
• Pests: Moderate
• Cold Resistance: Good (can show purple flecks)
• Heat Resistance: Moderate

Terpene Profile: Earthy hash, sandalwood, berry fuel, herbal kush, mango-diesel funk
Effect: Euphoric mental clarity followed by calm physical relaxation; versatile for day or night

Master Bruce SOS is a 50/50 hybrid autoflower created by Secret Owl Society, blending Bruce Banner #3 Auto F3 with a Master Kush-leaning Blue Power Auto F3 phenotype.

This frosty, flavor-rich cultivar brings together old-school kush depth and modern autoflower performance—resulting in a compact powerhouse that hits hard, smells loud, and finishes fast.

Typically finishing in 70–80 days from sprout, Master Bruce puts out dense, trichome-covered buds that carry deep notes of hash, sandalwood, berry, and gas.

With high resin output and a calming-yet-uplifting effect, she shines in both flower and hash form.

Expect a well-balanced, full-spectrum experience that’s functional by day and relaxing by night.

Grower's spec sheet

Genetics & Grow Data

Packsize3 Pack

Flowering TypeAutoFlower

Empty fields show a fill-in placeholder until you add the data per strain. Yields vary with grower experience, medium, environment, and nutrients.

What growers say

5.0

★★★★★

42 reviews

Bark Beyond

2 weeks ago

★★★★★ ✓

As a disabled Army veteran, finding balance after service isn't always easy. Cannabis became an important part of that process for me, and companies like...

Kyle Avalos

3 weeks ago

★★★★★ ✓

An awesome company, top to bottom, great customer service and they always have huge discounts to get the most bang for your buck!

Kenyan Moss

2 weeks ago

★★★★★ ✓

Quick responses from customer support. Even faster shipping time. Popping these babies soon. Super excited!

J J

2 weeks ago

★★★★★ ✓

So far so good nothing to complain about

Pairs well with

Original Cheese Auto | Fast Buds | FEM Autoflower Seeds

$12.00 ★ 4.2

Purple Punch Auto | Fast Buds | FEM Autoflower Seeds

$65.00 ★ 4.1

Wedding Cake Auto | Atlas Seeds | FEM Autoflower Seeds

$18.00 ★ 4.5

Purple Lemonade Auto | Fast Buds | FEM Autoflower Seeds

$78.00 ★ 4.9

Common Questions

Seeds are sold as adult novelty and collectible items. It's your responsibility to know and follow the laws in your area before germinating.

Spend $120 to unlock 18 free seeds ($270 value) plus free shipping. Eligible freebies are added automatically at checkout — no code needed.

Our 100% germination guarantee has you covered. Reach out with your order number and we'll replace any seed that doesn't pop.

99% of orders ship within 1–2 business days from Nevada in discreet, crush-proof packaging with no external branding.

Blueberry Muffin grows uniformly and forgivingly, which makes it a confident pick for newer growers. Difficulty details appear in the spec sheet once added.