BlueChem by Marshall Seeds

BlueChem strain photo
Type indica/sativaFlower ±60 daysCross Chemdog × Blueberry Sativa

Bred by Marshall Seeds from Chemdog × Blueberry Sativa, BlueChem is an indica-leaning cannabis variety. Indoors it typically finishes flowering in around 60 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real BlueChem grows against.

🌿 Start a BlueChem journal — free →

Similar strains

Vanilla HazeMarshall Seeds · ±70 daysNY KushMarshall Seeds · ±65 daysAmnesia G13Marshall Seeds · ±77 daysBlueberry Brulee 2.0Covert Genetics · ±60 daysBlueberry BudSagarmatha · ±60 daysChemistMr. Ghost · ±60 daysCherries, Berries & Funk V2Strait A Genetics · ±60 daysCherry BreathThugPug Genetics · ±60 daysCherry DieselMTG Seeds · ±60 daysCherry GorillaIn House Genetics · ±60 daysCherry Glue HeadAndromeda Strains · ±60 daysAll Marshall Seeds →
BreederMarshall Seeds
Typeindica/sativa
Flowering time±60 days
EnvironmentOutdoors, Greenhouse
LineageChemdog × Blueberry Sativa

🌱 Get BlueChem seeds →
Affiliate link — supports Cultivar at no cost to you.

🧬 Explore the family: Chemdog · Blueberry Sativa

Ancestry Pedigree

Chemdog
Unknown or Legendary
Indica Sativa
Original Strains
Blueberry Sativa
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
Floral Line
Unknown or Legendary

Growing BlueChem: 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 Chemdog or Blueberry Sativa 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.

BlueChem FAQ

How long does BlueChem take to flower?

BlueChem typically flowers in around 60 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.

Is BlueChem an indica or a sativa?

BlueChem is listed as indica/sativa.

What are the parents of BlueChem?

BlueChem was bred from Chemdog × Blueberry Sativa by Marshall Seeds.

What environment does BlueChem 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 BlueChem and something looks off? Free AI photo diagnosis →

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

Suggest an edit for BlueChem

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.