Indica Dominant · Seed Junky Genetics
Birthday Cake
Birthday Cake, also released as Birthday Cake Kush or simply BDC, is the Cherry Pie x Girl Scout Cookies cross created by Seed Junky Genetics in the mid-2010s as a sister line to Wedding Cake. The strain inherits the dense bud structure and sweet vanilla note of the broader Cookies family while picking up cherry-berry undertones from the Cherry Pie parent. The flavor leans vanilla-frosting on the inhale with a sweet cherry exhale, and plants finish in eight to nine weeks indoors with dense, frosty buds that develop heavy resin coverage in the back half of flower. The high is heavy and physical with a slow euphoric opening, recommended as an evening or pre-sleep strain rather than a daytime functional pick.
Reviewed 2026-05-23· Sources: seedfinder.eu, Seed Junky retailer info, leafly
Potency
- THC range
- 20–26%
- Typical THC
- 23%
- CBD
- up to 0.1%
Flowering
- Indoor weeks
- 8–9 wk
- Difficulty
- Moderate
- Climate
- Mediterranean, indoor
Yield & size
- Indoor
- 425-525 g/m²
- Outdoor
- 450-650 g/plant
- Height
- 90-120 cm
Indica / sativa ratio
Terpene profile
The aromatic compounds below shape how Birthday Cake smells, tastes, and ultimately feels in the body.
- dominant
Limonene
Uplifting citrus — typically associated with mood elevation and stress relief.
- secondary
Caryophyllene
Peppery and spicy — the only terpene that binds CB2 receptors, studied for anti-inflammatory action.
- secondary
Linalool
Floral and lavender-like — calming, often noted for sleep and anxiety support.
- minor
Myrcene
Sedating, musky, herbal — commonly linked to couch-lock effects.
Reported side effects
Lineage
Birthday Cake traces to Cherry Pie × Girl Scout Cookies. The cross sits in the Cookies family, which influences both the terpene profile and the flowering structure described above.
Genetic family tree
Documented parents and grandparents for Birthday Cake based on breeder catalogues. Library entries are clickable; ancestors not yet documented on this site appear in a lighter, non-linked box.
Strains crossed with Birthday Cake
Birthday Cake is a parent of 2 strains in the broader catalogue. These are crosses that carry Birthday Cake genetics on at least one side of the cross.
Grow profile
Grow profile
- Indica / sativa
- 70% / 30%
- Flowering days
- 56–63 days
- Stretch
- Low
- Pest resistance
- Moderate
- Mold resistance
- Moderate
- Training methods
- topping, lst, scrog
Feed schedule for Birthday Cake
These EC and NPK targets are starting points calibrated for the strain's Indica lean and moderate difficulty rating — not gospel. Drop 15-20% off any EC ceiling on your first run and let the plant tell you where it actually wants to feed.
Suggested feed schedule
- Late veg
- 1.4-1.6 EC
- Early flower
- 1.5-1.7 EC, NPK 2-3-4
- Mid flower
- 1.8-2.0 EC, NPK 1-4-6
- Late flower
- 1.6-1.8 EC
- Final week
- Plain pH-balanced water for the last 7-10 days; light flush if you ran nutrients on the higher end.
Full breakdown of feed math, runoff testing, and salt buildup in our nutrient guide.
What to expect through the grow cycle
Birthday Cake is documented with a 9-week flower and a compact stretch typical of indica-leaning structure. The visual below maps a documented 13-week cycle built from 4weeks of vegetative growth and the strain's published flowering window.
Published grow reports for Birthday Cake concentrate the most observational notes on the late-flower ripening window. This timeline is descriptive — it reflects what reports document, not a how-to. Actual week-to-week behaviour varies with phenotype, light intensity, pot size, and environment.
Phase details
- Veg (weeks 1-4)
- The documented vegetative period for Birthday Cake. Plants establish root structure, leaf canopy, and node count before flower triggering, with a moderate difficulty rating shaping how forgiving the early canopy work tends to be.
- Stretch (weeks 5-7)
- Birthday Cake is documented as having low stretch. Reports describe the plant roughly doubling in height during this phase as the indica-leaning structure establishes its final flowering frame.
- Bud sites (weeks 8-9)
- Pre-flowers form at the nodes and calyxes begin to develop. Grow reports for Birthday Cakenote this as the window where the canopy's eventual bud distribution becomes visible.
- Bud development (weeks 10-11)
- Flowers thicken and calyxes fatten through this phase. Documented Birthday Cake runs show the bulk of visible flower mass accumulating here, with resin production accelerating toward the end.
- Ripening (week 12)
- Trichomes transition from clear toward cloudy and amber. Reports for Birthday Cake describe the Limonene-led terpene profile maturing through this window, with aroma sharpening week over week.
- Final (week 13)
- Calyx swelling is documented as complete and the harvest window opens. Published Birthday Cake runs end here, within the 8-9 week flowering range reported by the breeder.
Flavor & aroma
Reported effects
Common questions about Birthday Cake
Is Birthday Cake the same as Wedding Cake?
No — Birthday Cake is Cherry Pie x Girl Scout Cookies, while Wedding Cake is Triangle Kush x Animal Mints. The two are both Seed Junky releases and share Girl Scout Cookies in their lineage, which is why the flavors overlap.
Why is Birthday Cake recommended for sleep?
The combination of dominant limonene, secondary linalool, a 70 percent indica ratio, and 23 percent THC produces a reliably sedating effect. Most users describe it as a heavy bedtime strain rather than a flexible evening pick.
Breeder of record
Seed Junky Genetics
View breeder profile and other strains →
More from Seed Junky Genetics
Strains similar to Birthday Cake
These picks lean on the same terpene profile and parent genetics as Birthday Cake — shared dominant terps, overlapping lineage, and matching indica/sativa lean. No star ratings or popularity contests, just overlap on the traits that actually drive a similar grow and smoke.