Chem 91 x Blueberry Syrup by CalCo Genetics

Type mostly indicaFlower ±63 daysCross Chem 91 Skunk VA × Blueberry Syrup

Chem 91 x Blueberry Syrup, from breeder CalCo Genetics, is an indica-leaning strain descended from Chem 91 Skunk VA × Blueberry Syrup. Indoors it typically finishes flowering in around 63 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Chem 91 x Blueberry Syrup grows against.

🌿 Start a Chem 91 x Blueberry Syrup journal — free →

Similar strains

Blue HawaiianCalCo Genetics · ±63 daysRainbow Flame #8 x Blueberry SyrupCalCo Genetics · ±63 daysJosh D OG x Blueberry SyrupCalCo Genetics · ±63 daysWedding Pie x Blueberry SyrupCalCo Genetics · ±63 daysMother Loaded x Blueberry SyrupCalCo Genetics · ±63 daysBlueberry SyrupCalCo GeneticsAuto MK-Ultra KushTH Seeds · ±63 daysBlueberry BurstCult Classics Seeds · ±63 daysBlueberry CheesecakeOregon Microgrowers Guild · ±63 daysBlueberryApeOrigin · ±63 daysBlueberry Dragon CheeseDragons Flame · ±63 daysBlueberry Filled DonutzBakery Genetics · ±63 daysAll CalCo Genetics →
BreederCalCo Genetics
Typemostly indica
Flowering time±63 days
EnvironmentOutdoors
LineageChem 91 Skunk VA × Blueberry Syrup

🌱 Get Chem 91 x Blueberry Syrup seeds →
Affiliate link — supports Cultivar at no cost to you.

🧬 Explore the family: Chem 91 Skunk VA · Blueberry Syrup

Ancestry Pedigree

Chem 91 Skunk VA
Clone Only Strains
Chemdog
Unknown or Legendary
Indica Sativa
Original Strains
Blueberry Syrup
CalCo Genetics
Blueberry
DJ Short
Blueberry Line
Unknown or Legendary
Temple Flo
DJ Short
Floral Line
Unknown or Legendary
Purple Thai
Unknown or Legendary
Highland Oxacan Gold
Unknown or Legendary
Mexico Sativa
Original Strains
Chocolate Thai
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Afghanistan Indica
Original Strains
HTAF
Unknown or Legendary
Thailand Sativa
Original Strains
Afghani
Unknown or Legendary
Humble Pie
Dungeons Vault Genetics
Cherry Pie
Clone Only Strains
Durban Poison
Dutch Passion
Durban Poison
Unknown or Legendary
South Africa Sativa
Original Strains
Grand Daddy Purple
Unknown or Legendary
Purple Urkel
Clone Only Strains
Mostly Indica
Original Strains
Big Bud
The Seed Bank
USA Indica
Original Strains
Purest Indica
Clone Only Strains
Afghani
Unknown or Legendary
Afghani
Unknown or Legendary
USA Indica
Original Strains
Grandpas Breath
Dungeons Vault Genetics
OG Kush
Clone Only Strains
Unknown Strain
Original Strains
Hindu Kush Indica
Original Strains
OG Kush Breath
Unknown or Legendary
Girl Scout Cookies
Clone Only Strains
GSC Thin Mints
Clone Only Strains
Cherry Pie Kush
Unknown or Legendary
Cherry Pie
Clone Only Strains
Chemdog
Unknown or Legendary

Growing Chem 91 x Blueberry Syrup: what to expect

As an indica-leaning plant, expect a modest stretch after the flip (roughly 50–100%) and dense bud structure — which makes late-flower humidity discipline the main risk: keep RH in the 40s once buds fatten to stay ahead of mold. Growers familiar with Chem 91 Skunk VA or Blueberry Syrup will recognize much of its behavior. Whatever the listing says, the cut in YOUR tent is the ground truth: log feedings, readings, and photos, and let the trends — not the label — drive decisions.

Chem 91 x Blueberry Syrup FAQ

How long does Chem 91 x Blueberry Syrup take to flower?

Chem 91 x Blueberry Syrup typically flowers in around 63 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is Chem 91 x Blueberry Syrup an indica or a sativa?

Chem 91 x Blueberry Syrup is listed as mostly indica.

What are the parents of Chem 91 x Blueberry Syrup?

Chem 91 x Blueberry Syrup was bred from Chem 91 Skunk VA × Blueberry Syrup by CalCo Genetics.

What environment does Chem 91 x Blueberry Syrup like?

Standard cannabis bands work well: VPD 0.8–1.1 kPa in veg and 1.0–1.4 kPa in flower, with humidity stepping down from 65–75% as a seedling to 40–50% in late flower. See the stage-by-stage table on this page.

📷 Growing Chem 91 x Blueberry Syrup and something looks off? Free AI photo diagnosis →

Facts compiled from public breeder listings. Growing Chem 91 x Blueberry Syrup? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.

Suggest an edit for Chem 91 x Blueberry Syrup

Track your own grow free — the journal grades your environment against these bands →

Get the one-page grow reference card

VPD, pH by medium, deficiency symptoms and dry/cure targets on a single printable page. Free — plus the occasional grow-data breakdown. No spam, unsubscribe in one click.

Or just open the card now — no email needed →

Published by Cultivar (logmygrow.com), a structured grow journal. These reference bands are the same ones the app grades real grows against. Free to cite with a link. Some outbound product links are affiliate links — see disclosures.