ESB by Unknown or Legendary
1 other breeder's version of ESB — compare flowering times side by side →
Bred by Unknown or Legendary from ES × Blueberry, ESB is a sativa-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 ESB grows against.
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Similar strains
| Breeder | Unknown or Legendary |
|---|---|
| Type | mostly sativa |
| Flowering time | ±60 days |
| Environment | Indoors, Outdoors |
| Lineage | ES × Blueberry |
| Descendants | Oldtimes |
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🧬 Explore the family: ES · Blueberry · Oldtimes
Ancestry Pedigree
Unknown or Legendary
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Original Strains
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Growing ESB: 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 ES or Blueberry 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.
ESB FAQ
How long does ESB take to flower?
ESB 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 ESB an indica or a sativa?
ESB is listed as mostly sativa.
What are the parents of ESB?
ESB was bred from ES × Blueberry by Unknown or Legendary.
What environment does ESB 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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