Sour 60 Autoflower Comes in Purple and Green (Donkey Dong) a Pheno Comparison
If you’re tired of 90–120-day waits and want sticky, sweet-sour buds in literally 60 days from seed, you’ve just found your new favorite autoflower.
Sour 60 (bred by New420Guy Seeds from Mdanzig’s original lines) is the fastest finishing, most forgiving auto I’ve ever run — and at Just Cannabis Seed we carry both legendary phenos: the jaw-dropping Purple and the absurdly fat-cola Green Donkey Dong.
I’ve grown over many of these in the last 5 years (indoors, outdoors, greenhouse) and I’m going to give you every single lesson I learned so you can skip the rookie mistakes and pull 50–120 g per plant on your very first try. This guide is packed with real data from my grows, community diaries, and 2025 trends — including step-by-step schedules, troubleshooting, and just search auto-flowers category above to buy a 5 pack of seeds for just $38 with free discreet shipping.
Whether you’re chasing purple bag appeal or monster colas, Sour 60 has you covered. And if you’re new here, know this: at Just Cannabis Seed, we back every pack with a germination guarantee and free bonuses on all orders right now. Ready? Let’s get your 60-day harvest started.
Table of Contents
- 1. Genetics, History & Breeder Background
- 2. Purple vs Green Donkey Dong – Detailed Side-by-Side Comparison
- 3. Key Stats & What to Expect in 2025 Grows
- 4. Exact 60-Day Timeline From Seed to Harvest
- 5. Germination Method (90–100 % Success Rate Every Time)
- 6. Seedling Stage – Week 1–2 Care for Strong Starts
- 7. Vegetative & Pre-Flower – Week 3–4 Growth Tips
- 8. Flowering Stage – Week 5–8 Week-by-Week Guide
- 9. Advanced Techniques for 100g+ Yields
- 10. Common Mistakes & How to Avoid Them (From My Flops)
- 11. Pests, Diseases & Environmental Stress Fixes
- 12. Harvest, Dry & Cure for Maximum Potency & Flavor
- 13. Effects, Flavors, Terpenes & Medical Uses
- 14. Sour 60 vs Other Popular Autoflowers (Gorilla Glue, Durban Poison, etc.)
- 16. Frequently Asked Questions About Sour 60
- 17. Where to Buy Authentic Sour 60 Seeds in 2025 ($38 Packs with Free Shipping)
1. Genetics, History & Breeder Background
Sour 60 autoflower traces its roots to the early 2010s when breeder Mdanzig was experimenting with fast-finishing autos to create something that could rival photoperiod potency but harvest in under two months. The base genetics combine:
- Lowryder – The original autoflower pioneer, bringing in ruderalis genes for automatic flowering and compact size. This is what makes Sour 60 flip to flower without light changes. (I sell the Lowryder strain as well)
- Master Kush – Adds indica structure, resin production, and earthy flavors. It’s the backbone for the plant’s durability and mold resistance.
- Blueberry – Infuses sweet berry terps and purple coloration in the Purple pheno. Blueberry’s influence is why this strain smells like fresh muffins during cure.
- Sour Bubble – Brings the sour, diesel kick and bubblegum sweetness. This BOG Genetics classic amps up the potency and aroma.
New420Guy Seeds took Mdanzig’s project and stabilized it over multiple generations, releasing the current version around 2015.
By 2025, it’s become a cult favorite for micro-growers and beginners because it’s nearly impossible to kill — thriving in poor conditions where other autos stall. I’ve run it in 1-gallon pots on windowsills and still pulled 40g per plant. Community forums like THCFarmer and Rollitup rave about its consistency, with over 85% of reviews rating it 4.5/5 for ease.
Genetically, it’s roughly 40% indica, 40% sativa, 20% ruderalis — balanced for uplifting effects without heavy sedation. THC levels test 12–18% (average 15.5% in 2025 labs), with CBD under 1%, making it recreational-focused but with medical potential for stress relief.
2. Purple vs Green Donkey Dong – Detailed Side-by-Side Comparison
Sour 60 throws two main phenos from every pack, each with unique traits that suit different grow styles. The Purple is my go-to for visual stunners, while the Green Donkey Dong (named for its ridiculously thick main cola) is the workhorse for easy harvests.
| Category | Purple Pheno | Green Donkey Dong Pheno |
|---|---|---|
| Appearance | Vibrant violet buds, purple leaves, red stems from week 5. Dense, frosty nugs with multi-cola structure. | Bright green foliage, one massive central cola (20–30 cm long). Fewer side branches, lollipop shape. |
| Height & Structure | 50–90 cm tall, bushy with 8–12 bud sites. Christmas tree shape, great for SCROG. | 60–110 cm tall, single-stem dominant. Minimal branching, ideal for SOG or stealth pots. |
| Yield | 50–120 g per plant (indoors). Better overall distribution from branching. | 40–100 g per plant. Focused yield on one cola makes trimming 50% faster. |
| Flavor & Aroma | Sweet blueberry bubblegum with earthy sour finish. Ripe fruit on exhale, myrcene-heavy. | Spicy sour diesel with herbal notes. Pungent rotting berry punch, limonene-dominant for zesty kick. |
| Effects | Relaxing body high, stress melt. Indica-leaning (60/40), perfect evening smoke. | Uplifting cerebral buzz, giggles. Sativa-leaning (60/40), great daytime creativity. |
| Best Grow Style | Indoors/outdoors, LST/SCROG for max yield. Loves cool nights (18–22 °C) to enhance purple. | Stealth/micro grows, no training needed. Thrives in hot setups (24–28 °C) for cola swell. |
| Difficulty | Beginner-friendly; forgives nute errors but watch pH for color lock-in. | Ultra-easy; low maintenance, resists pests. Ideal first auto. |
From my experience, Purple phenos show red stems early, while Greens stretch taller early. In packs of 5, expect 2–3 of each (results may vary). If you want purple dominance, drop temps 5 °C in late flower. Greens are sturdier for beginners. Both phenos share the same THC range, but Purples hold terps longer in cure, and smell divine!.
3. Key Stats & What to Expect in 2025 Grows
THC: 12–18 % (average 15.5 %)
Yield: 350–550 g/m² indoors, 40–120 g/plant outdoors. Greens skew lower but easier; Purples higher with training.
Height: 50–110 cm — compact for tents (fits 4×4 with 8 plants).
Flowering Time: 55–65 days from seed. (60 days may be a bit optimistic, give it extra time if need be)
Resistance: High to mold, pests, overfeed. Ruderalis genes make it tough in heat/cold (60–90 °F ideal).
4. Exact 60-Day Timeline From Seed to Harvest
Day 1–3: Germination (80–100 % should pop)
Day 4–14: Seedling (build roots, no nutes yet)
Day 15–21: Pre-flower (stretch 2x, start low-dose feed)
Day 22–35: Early flower (bud sites form, ramp PK)
Day 36–50: Mid flower (resin explosion, support colas)
Day 51–60: Late flower (ripen, flush)
Harvest day 60–65 depending on pheno (Greens ready earlier).
5. Germination Method (90–100 % Success Rate Every Time)
I’ve tested 10+ methods — this is foolproof:
- Fill a glass with pH 6.0 RO water + 1 ml/L H2O2 (kills mold).
- Soak seeds 12–24 hours until they sink or taproot shows.
- Transfer to damp (not soaked) paper towel in a Ziploc at 78–82 °F.
- Check every 12 hours — transplant when taproot first makes it’s appearance.
- Plant in starter plugs or light soil, dome for 70 % RH, temp. 70-80 degrees F.
6. Seedling Stage – Week 1–2 Care for Strong Starts
Light: 18/6 or 20/4 (I think they benefit from a dark period) — 100–200 PPFD LEDs at 24 inches.
Temps: 72–82 °F day, 68–75 °F night.
Humidity: 65–75 % — use a dome if dry.
Water: Mist soil when top 1 inch dry — overwatering kills more seedlings than anything.
Nutes: None until day 7, then 1/2 strength
Common sign: Purple phenos show red stems early; Greens stay green but grow faster.
7. Vegetative & Pre-Flower – Week 3–4 Growth Tips
Light: Ramp to 24/4 if indoors — Sour 60 loves long days for veg boost.
Pot up to 3–5 gallon by day 14 — fabric pots for oxygen. The smaller is fine.
Training: LST day 12–18 — tie down mains for even canopy. No topping (can stunt this auto).
Nutes: ½ strength veg formula (N high, P/K low)
pH: 6.0–6.5 soil; 5.5–6.0 hydro.
Stretch: 2–3x height — Greens stretch more, but plants rarely get over 2 feet tall.
8. Flowering Stage – Week 5–8 Week-by-Week Guide
Week 5: Bud sites swell — switch to bloom nutes.
Week 6: Resin starts — temps 70–80 °F, RH 50%. Purples color up.
Week 7: Colas fatten — support Greens with stakes if need be.
Week 8: Ripen — flush with plain water 7–10 days. Trichs 70% milky.
Light: Keep 24/4 or drop to 18/6 for denser buds.
Water: 20% less than veg. Watch the humidity as the buds thicken.
9. Advanced Techniques for 100g+ Yields
SCROG for Purples: Net day 20 — even canopy doubles light penetration.
SOG for Greens: 9 plants per square meter — one cola focus maximizes space.
Super cropping: Gentle bend day 15 — boosts yield 15–20% without stress.
LEDs vs HPS: LEDs for cooler runs and purple colors; HPS for fatter colas.
Organics: 100% for my grows…you? Drop me a comment.
10. Common Mistakes & How to Avoid Them (From My Flops)
Overwatering: Let top soil dry — everybody screw this one up at some point.
High temps: Keep under 85 °F — cool temps will bring out the purples.
Nut burn: Start low 1/2 strength, it is always better to underfeed, then overfeed.
Light leaks: Autos don’t herm easy, but this is never good.
Harvest early: Wait for amber, or at least milky trichs .
11. Pests, Diseases & Environmental Stress Fixes
Sour 60 resists spider mites, but keep an eye out for them anyways.
Diseases: Powdery mildew in high RH — lower to 50%, add fans.
Nut def: Yellow leaves = N low; purple stems = P def (normal for pheno).
Heat stress: Curling leaves cool things down.
Cold stress: Slow growth — need 70 °F min.
Organic fixes: silica strengthens stems, I like feeding with compost tea ferts.
12. Harvest, Dry & Cure for Maximum Potency & Flavor
Harvest: Chop when 70% trichs milky, 20% amber. I like to wet trim for speed.
Dry: 60–65 °F, 55–60 % RH, dark room, 7–10 days until stems snap.
Cure: Glass jars, burp daily week 1, weekly after. Flavors peak month 1–2.
My tip: I like to hang upside down — Purples keep color, Greens dry even.
Storage: Cool, dark, 62 % RH Boveda packs.
13. Effects, Flavors, Terpenes & Medical Uses
THC: 12–18% — mellow for all-day use.
Effects: Purple = body relax, stress melt, sleep aid. Green = head high, focus, creativity.
Flavors: Sweet sour bubblegum, blueberry, diesel. Purples sweeter, Greens spicier.
Terpenes: Myrcene (calm), Limonene (uplift), Caryophyllene (anti-pain).
Medical: Great for chronic pain, anxiety, and appetite (get ready for the munchies).
From other growers: “Purple for bed, Green for work”
14. Sour 60 vs Other Popular Autoflowers (Gorilla Glue, Durban Poison, etc.)
| Strain | Sour 60 | Gorilla Glue Auto | Durban Poison Auto |
|---|---|---|---|
| Finish Time | 60 days | 70–80 days | 75–90 days |
| Yield | 400–500 g/m² | 450–600 g/m² | 350–450 g/m² |
| THC | 12–18% | 20–26% | 15–20% |
| Best For | Speed, flavors | Potency | Energizing sativa |
Sour 60 wins for speed; Gorilla for power. I mix them in tents for variety.
16. Frequently Asked Questions About Sour 60
Is Sour 60 good for beginners?
Yes — super forgiving, fast, low maintenance.
How much light does it need?
200–600W equivalent LEDs, 18–24 hours daily.
Can I grow Sour 60 outdoors?
Yes, spring–summer in zones 5–10. Harvest mid-summer, two harvests or even more possible.
What’s the difference in high between phenos?
Purple more relaxing, Green more uplifting.
Are these feminized?
No, regulars — but 50/50 male/female, great for breeding (making seed is fun!)
How do I get more purple color?
Drop night temps to 65 °F week 6–8.
What’s the germination rate?
85–100% — our packs guarantee it or free replacement, I will take care of you.
Is it mold resistant?
Pretty much, being fast helps.
Best soil for Sour 60?
Light mix like FoxFarm Ocean Forest with 30% perlite, you want the roots to spread quickly.
Can I clone Sour 60?
No, autos don’t clone well — always from seed.
17. Where to Buy Authentic Sour 60 Seeds in 2025
Skip the fakes — get genuine stock right here at Just Cannabis Seed. We have both phenos ready to ship:
- Sour 60 Purple Regular 5-pack – $38 (was $40)
- Sour 60 Green Donkey Dong Regular 5-pack – $38
Free discreet worldwide shipping (got to be in a legal jurisdiction), free bonus seeds on every order, and 10% off your first purchase with email signup. Stock is limited — 2025 demand is up 30% for fast autos like this, so grab yours before they sell out.
Ready to start your 60-day grow? Click those links, pop the seeds, and hit me in the comments with your progress. Happy growing, and tell me about it in a comment below.
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