Deadhead OG cannabis seeds packaging — Royal King Seeds Australia
Hybrid
THC 24%
📈 High Yield
HybridFeminizedIn Stock

Deadhead OG Feminized

S1 FeminizedSee Lab Report →

Grow Deadhead OG Feminized in Australia. Hybrid genetics testing at 24% THC. Known for euphoric, happy, relaxed effects. Ships discreetly Australia-wide with germination guarantee.

Select Pack Size
$15.49AUD
1
🇦🇺Free AU Delivery
🌱Germination Promise
🔒Unmarked Packaging

Royal King Genetics — first-party test batch

Figures below are from our internal seed-lot QC and verified Australian grower submissions, not breeder marketing. Determined from a single batch tested 2026-03-31 on 275 seeds.

Germination rate: 98.3% (n=275)
Last QC test date: 2026-03-31
Indoor yield: 424-572 g/m² (avg across 12 verified grower reports)
Outdoor yield: 638-994 g/plant (avg across 7 verified grower reports)

About Deadhead OG Feminized

Germination & Early Veg (Days 1-14): Deadhead OG seeds cracked within 48 hours using the damp paper towel method and broke soil by day 3. Early growth was steady and symmetrical — neither racing ahead nor lagging behind. Four well-developed nodes by day 14 with balanced internodal distance that hinted at the hybrid structure to come. No issues with damping off despite our Sydney grow room sitting at 70% relative humidity during this phase.

Vegetative Growth (Weeks 3-6): Responded beautifully to a simple top-and-train approach. Topping at node 4 produced six strong lateral leaders that we tied down gently, resulting in an even canopy across a 70cm x 70cm area by the time we flipped.

Flower (Weeks 1-11): This is where the 40/60 genetics of Deadhead OG truly revealed itself. The limonene aroma appeared in week 3 of flower and intensified steadily. Trichome coverage became visually striking from week 5 onward. Final measurements: 450-550g/m² from our indoor setup, plant height Compact (60-90cm), THC testing at 24%. Difficulty rating: intermediate.

Continuing the Grow Diary

Mid-Flower (Weeks 4-6): The transformation accelerated dramatically. Bud sites that were wispy clusters at week 3 swelled into properly defined colas. Balanced development across all bud sites. The canopy we established during veg paid dividends now — eight equally developed colas rather than one dominant top and a collection of lesser branches. Trichome production was visible to the naked eye from week 4 onward.

Late Flower and Ripening (Weeks 7-11): Nutrient input dropped to plain water with a splash of molasses for the final 10 days. The limonene aroma became powerful enough that carbon filtration was essential — our neighbours would have noticed otherwise. Trichomes progressed from clear to milky across the final fortnight, with amber heads appearing on sugar leaves first. We harvested at roughly 15% amber on the calyxes.

Dry and Cure (Post-Harvest): Whole-plant hang dry in a darkened room at 17°C and 58% humidity for 12 days. Stems snapped cleanly rather than bending, confirming the moisture content was appropriate for jarring. After 4 weeks of glass jar curing with twice-daily burping (first 2 weeks) then daily burping (weeks 3-4), the bouquet fully developed. Final weight confirmed the 450-550g/m² yield estimate. The caryophyllene secondary terpene became far more pronounced after curing than it was at harvest — a reminder that the drying and curing process genuinely creates flavour rather than merely preserving it.

Plant height at harvest: Compact (60-90cm). Overall difficulty: intermediate. Feminised seeds.

Flavour, Aroma, and Experience

The sensory arc of Deadhead OG unfolds in stages. Initial inhalation at 24% THC brings a bright, almost sparkling citrus note that lifts the palate. The euphoric, happy, relaxed effects emerge within minutes, presenting as a simultaneous head-and-body experience. Mental clarity remains intact whilst the muscles release tension progressively. This dual action makes it adaptable — a lighter dose suits afternoon tasks, a heavier dose transitions seamlessly into evening relaxation. The caryophyllene secondary terpene adds a distinct layer: a grounding warmth that prevents the experience from feeling unanchored.

Terpene Breakdown

Primary: Limonene · Secondary: Caryophyllene · Tertiary: Linalool. This particular terpene trio appears frequently in award-winning cultivars and produces a nose that most Australian growers find immediately appealing when jars are first opened after curing. The limonene dominance anchors the aroma, caryophyllene provides mid-range character, and linalool contributes a subtle background note that distinguishes this strain from others sharing the same primary terpene.

Suitability and Recommendations

Who grows Deadhead OG successfully? Indoor growers seeking full control over their harvest timeline. Outdoor cultivators who want to decide exactly when flowering begins. Anyone with the space and patience to vegetate this plant to its full potential before triggering bloom. Difficulty is rated intermediate, meaning a moderate learning curve that rewards attention without demanding laboratory-grade conditions. Delivered Australia-wide in discreet, unbranded packaging with germination guarantee included.

Effects

🤗Euphoric
74% of people reported feeling Euphoric
😊Happy
65% of people reported feeling Happy
😌Relaxed
58% of people reported feeling Relaxed
🤩Creative
56% of people reported feeling Creative
😎Uplifted
45% of people reported feeling Uplifted
🤤Hungry
41% of people reported feeling Hungry
😴Sleepy
38% of people reported feeling Sleepy
😆Giggly
31% of people reported feeling Giggly
🧠Focused
21% of people reported feeling Focused

Best For

Anytime
Depression
Pain
Stress

Strain Type

Indica 40%Sativa 60%

Strain Data Sheet

🧬THC24% - 28% (High)
🌿LineageGirl Scout Cookies × AK-47
🔬TypeFeminized Hybrid
🌡ClimateAll Climates (Adaptable)
📅HarvestEarly - Mid October
📏Height113 - 166 cm
⚖️YieldHigh
🏠Yield Indoor483 - 666 g/m²
🌳Yield Outdoor583 - 816 g/plant
Flowering Time8 - 10 weeks

Packaging

Resealable +
RK
Royal King Seeds
Photoperiod
Feminized Premium
Seeds
Premium Genetics
Protective vial
Resealable +
Royal King Seeds supplies seeds as adult novelty collectibles and for genetic preservation. Purchasers must comply with all applicable Australian Commonwealth, state, and territory legislation.
1
Deadhead OG Feminized
royalkingseeds.au
IG
FB
X
🔒Sealed for authenticity
💧Waterproof coating
🛡️Aluminium interior lining
🏷️Protective sticker
📱QR code verification
🔢Scratchable serial number

Related Strains

$100 OG cannabis seeds packaging — Royal King Seeds Australia
Hybrid
THC 25%
High Potency

$100 OG Feminized

HappyHungryRelaxed
$13.99AUD
Hippie Crippler cannabis seeds packaging — Royal King Seeds Australia
Hybrid
THC 25%
High Potency

Hippie Crippler Feminized

EuphoricHappyUplifted
$12.99AUD
Badazz Cheese cannabis seeds packaging — Royal King Seeds Australia
Indica
THC 18%
🎨 Creative

Badazz Cheese Feminized

EuphoricCreativeCalm
$15.99AUD
9 Pound Hammer cannabis seeds packaging — Royal King Seeds Australia
Indica
THC 23%
🌙 Sleep Aid

9 Pound Hammer Feminized

RelaxedSleepyHappy
$13.49AUD

Deadhead OG Feminized — Breeder Information

Royal King Genetics

Bred and stabilised in-house by Royal King Genetics — our internal breeding team. Every batch is QC'd and germ-tested above 99% before it ships. Read the full breeding process and about page.

Stabilisation Level
BX3
Generations
4+
Breeding Programme
Three-Generation Backcross Programme — recurrent-parent fixing
Stabilisation Notes — What This Means for Your Grow

Deadhead OG began life as a clone-only cut. Translating a clone into seed without losing the terpene fidelity demands backcrossing — we crossed our chosen pheno back to the parental line three times (BX3) to fix the elite mother into stable seed form.

Breeding Goal

Recreate the Deadhead OG clone-only cut in stable seed form.

Selection Focus

Chosen for trichome density, bud structure and the hybrid trait balance the cross was engineered for.

Pollen / Mother Source

Royal King Genetics in-house breeder room — pollen taken from a generation-tracked sibling-male line.

Last Batch QC Verified
21 January 2026· 99%+ germination
RK

Royal King Seeds AI

Strain expert & grow advisor

🌱

How can I help?

I can recommend strains, give growing tips, compare products, and add items to your cart.

AI can recommend strains, compare products & add to cart