Amsterdam Blue by Sumo Seeds
A sativa-leaning cross of Gold Rush Outdoor, Amsterdam Blue — released by Sumo Seeds — shows up in a lot of tents for good reason. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Amsterdam Blue grows against.
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Similar strains
| Breeder | Sumo Seeds |
|---|---|
| Type | mostly sativa |
| Environment | Outdoors |
| Lineage | Gold Rush Outdoor |
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Growing Amsterdam Blue: 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 Gold Rush Outdoor 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.
Amsterdam Blue FAQ
Is Amsterdam Blue an indica or a sativa?
Amsterdam Blue is listed as mostly sativa.
What are the parents of Amsterdam Blue?
Amsterdam Blue was bred from Gold Rush Outdoor by Sumo Seeds.
What environment does Amsterdam Blue 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 Amsterdam Blue? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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