Do-Si-Dos Auto: The Cookie Assassin Blueprint
Auto strains used to cut corners. This one cuts time — Do-Si-Dos Auto keeps the original’s creamy funk and power, but runs on a 9–10 week clock. She’s dense, sticky, and surprisingly strong for a short-cycle girl — perfect for balcony ops, stealth tents, or mid-season flips. While photoperiod Do-Si-Dos is the heavyweight cookie queen, Do-Si-Dos Auto is her silent killer — compact, sugar-crusted, and done before your mates even hang their trellis.
Matty: “Same cookie dough kick, but baked in record time — this one’s got bite and charm.”
Quick Stats (Sweet, Fast, and Dangerous)
A proper Indica-dominant Hybrid that hits fast and settles heavy.
22–27% THC delivered in a dense, tight flower structure.
9–10 weeks seed to harvest — runs a tight ship.
Matty: “Don’t let her size fool ya — this cookie can flatten a weekend.”
The Lineage: OG Dough Rewired
Do-Si-Dos Auto blends the OG Kush Breath × Girl Scout Cookies core with a Ruderalis line fine-tuned for resin density. Unlike early autos, she holds her structure and flavour — sticky resin, nutty sweetness, and that OG back-end gas.
Matty’s Note: “Modern autos finally nailed the cookie terps — sweet dough up front, fuel on the exhale. Legit.”
Flavour & Aroma
On the nose: cookie dough, earthy lime, hint of gas.
On the palate: creamy vanilla, spicy nuts, a whisper of pine.
Aftertaste: buttery sweetness that lingers.
Main terps: Limonene · Myrcene · Caryophyllene
Matty: “Smells like someone baked cookies in a garage full of OG.”
Effects & What to Expect
First wave: fast cerebral rush, playful and hazy.
Then: heavy body drop — full melt into the couch.
Vibe: sweet sedation; introspective, but giggly. Best for nights, movie marathons, long chill sessions.
Matty: “A proper cookie coma — hits hard, then hands you a blanket.”
How I Grow It (Matty’s Way)
Skill level: Beginner → Intermediate — compact, predictable structure, hates being fussed with.
- Light: 20/4 schedule, seed to finish. Non-negotiable for maximum density.
- Training: Early LST only — she loves side branching, but absolutely hates topping.
- Defoliation: Only light leaf tucking, keep major fans unless they block light 100%.
- Feeding: Light veg feed, mid-strong bloom. Ease N hard after Week 4.
- Pot Science: 11–18 L fabric; airy mix (40% soil / 40% coco / 20% perlite). Cookies hate soggy roots.
- Finish: Harvest at 10–15% amber for full cookie flavour and knockout power.
Feeding & Climate: Start EC light. Day 24–26 °C / Night 18–21 °C. RH 45–55% is the sweet spot.
Matty: “Treat her like a dessert — slow cook, never rush.”
RED FLAG #1 — Topping is Off-Limits: Do NOT top her late (or at all, LST wins). She will stall and finish small.
RED FLAG #2 — Overfeeding: Overfeeding burns the tips fast. Watch that EC climb past 1.6 in bloom; dial it back immediately.
RED FLAG #3 — Cold Feet: She hates cold, wet soil. Keep the root zone warm and airy, especially in Wk 1–2.
Grow Log (📅 Cookie Sprint)
| Phase / Week | Key Action | Targets (PPFD · EC · RH · Notes) |
|---|---|---|
| Wk 1–2: Seedling | 20/4 light, gentle ring watering | PPFD 250–350 · EC 0.6–0.8 · RH 65–70% · VPD ~0.7–0.9 · Warm roots (22–24 °C). Don’t drown her. |
| Wk 3–4: Veg/Pre-Flower | LST & shaping (final branch positioning) | PPFD 400–550 · EC 1.0–1.2 · RH 55–60% · VPD ~0.9–1.1 · Tie mains early; no topping after Day ~20. |
| Wk 5–6: Flower Onset | Ease N, boost P/K; tuck fans | PPFD 600–700 · EC 1.4–1.6 · RH 48–50% · VPD ~1.1–1.3 · Cookie scent starts; 10–15% runoff, watch salt creep. |
| Wk 7–8: Bulk & Frost | Max PPFD, cool nights slightly | PPFD 700–750 · EC 1.5–1.7 · RH 42–45% · VPD ~1.2–1.4 · Cool nights (18–20 °C) = extra frosting. |
| Wk 9–10: Finish & Flush | Flush 7–10 days; harvest at 10–15% amber | PPFD 500–600 · EC ↓ 1.0 → 0.2 · RH ≤ 42% late · Calendars lie; trichs don’t. |
| Post-harvest: Dry & Cure | Slow dry then cure | Dry 10–12 days @ 18–20 °C / 58–62% RH · Jar @ 62% packs · Burp daily (Days 1–7), then 2–3×/week (Weeks 2–3). “Creamy cookie” shows after Week 2 of cure. |
Dry & Cure (Non-Negotiable): Do not cook the terps. Slow dry 10–12 days @ 18–20 °C / 58–62% RH, then cure 2–3+ weeks. Matty: “Rush the dry and you turn cookies into cardboard.”
Matty’s Advanced Notes (For the Nerds)
- DLI Target: Keep Daily Light Integral (DLI) around 38–40 in peak bloom (Wk 7–8).
- EC Sweet Spot: 1.4–1.6 is the core bloom EC. Tapering starts once bulk is achieved, usually Wk 9.
- VPD: ~0.7–0.9 seedling, 0.9–1.1 veg, 1.1–1.4 bloom. It’s the cleanest way to protect terps.
- Runoff discipline: 10–15% in coco/hydro stops salt creep and tip burn; log EC in and out.
- pH Window: Hydro/Coco 5.8–6.0 · Soil 6.3–6.8. You lose the creamy terps fast if pH is out.
- Substrate: 40 % coco, 40 % soil, 20 % perlite — excellent air-to-water ratio is essential for autos.
- Pests: Fungus gnats and PM love her — dry-top layer and air movement are key deterrents.
- CO₂: Optional; 1,000 ppm sweet spot only at PPFD ≥ 650.
Matty: “Cookie phenos are divas — they’ll tell ya what they don’t like before they tell ya what they do.”
Mythbusting (🚫)
Myth: Cookies don’t translate to autos.
Truth: This one’s the exception — flavour intact, power intact. 27% THC is real.
Myth: Short cycle = small yield.
Truth: Dense nugs and stacked colas say otherwise. She packs the weight tightly.
Myth: You can top any auto.
Truth: Not this one — LST or bust. Topping late costs you precious time she doesn’t have.
Who It’s For?
Perfect If You:
- Want that cookie-OG punch in a 10-week window.
- Need stealth height and indoor efficiency.
- Chase resin and flavour over raw, loose bulk.
Maybe Not For You If You:
- Expect photoperiod-style recovery from heavy pruning.
- Overfeed every run (she’s sensitive).
- Hate trimming sticky, dense buds (you’ll need gloves).
Matty’s Story
“First run of Do-Si-Dos Auto, I figured she’d be a tame cookie. By Week 8, she reeked like a bakery near a petrol station. Had me cleaning scissors every 10 minutes — that’s when I knew she wasn’t a pretender.”
Final Verdict (🏆 Matty’s Final Word)
Do-Si-Dos Auto is proof that dessert strains can still hit like diesel. All flavour, full frost, and no wasted weeks. She may be small, but she hits like a pub bouncer with a soft spot for dessert.
Matty: “She’s small, she’s sweet, and she’ll knock ya out — a cookie you’ll respect in the morning.” 🍻
AUS Stock - Local Delivery


















Nothing short of outstanding
Service
Delivery
100% germination 2 days
Fast delivery one did not sprout but that’s fine there only small but are looking well
Having some germination issues, only 2 of 5 seeds started have popped
Have sprouting now
Didn’t need fancy equipment
Last-minute order came just in time for planting window.