Cosmic Charlie by MTG Seeds
Growers reach for Cosmic Charlie as a sativa-leaning option, a cross of Green Crack × LSD OG out of MTG Seeds. Indoors it typically finishes flowering in around 70 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Cosmic Charlie grows against.
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Similar strains
| Breeder | MTG Seeds |
|---|---|
| Type | mostly sativa |
| Flowering time | ±70 days |
| Environment | Outdoors |
| Lineage | Green Crack × LSD OG |
| Descendants | Cosmic Collision |
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🧬 Explore the family: Green Crack · LSD OG · Cosmic Collision
Ancestry Pedigree
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Sensi Seeds
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Growing Cosmic Charlie: what to expect
As a sativa-leaning plant, plan for a big stretch after the flip (often 100–200%) — flip earlier than feels natural and keep training options ready. Sativa-leaning plants also generally prefer a lighter feed than heavy indicas. Growers familiar with Green Crack or LSD OG 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.
Cosmic Charlie FAQ
How long does Cosmic Charlie take to flower?
Cosmic Charlie typically flowers in around 70 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Cosmic Charlie an indica or a sativa?
Cosmic Charlie is listed as mostly sativa.
What are the parents of Cosmic Charlie?
Cosmic Charlie was bred from Green Crack × LSD OG by MTG Seeds.
What environment does Cosmic Charlie 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.
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Facts compiled from public breeder listings. Growing Cosmic Charlie? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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