Oldtimes BX by Underground Orig.
Oldtimes BX lands on the sativa-leaning side of the spectrum, Underground Orig.'s take on the Oldtimes × ES line. 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 Oldtimes BX grows against.
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Similar strains
| Breeder | Underground Orig. |
|---|---|
| Type | mostly sativa |
| Flowering time | ±63 days |
| Environment | Outdoors |
| Lineage | Oldtimes × ES |
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🧬 Explore the family: Oldtimes · ES
Ancestry Pedigree
Underground Originals
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DJ Short
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DJ Short
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Original Strains
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Original Strains
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Original Strains
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Original Strains
Sensi Seeds
The Seed Bank
Cultivators Choice
Original Strains
Original Strains
Growing Oldtimes BX: 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 Oldtimes or ES 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.
Oldtimes BX FAQ
How long does Oldtimes BX take to flower?
Oldtimes BX 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 Oldtimes BX an indica or a sativa?
Oldtimes BX is listed as mostly sativa.
What are the parents of Oldtimes BX?
Oldtimes BX was bred from Oldtimes × ES by Underground Orig..
What environment does Oldtimes BX 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 Oldtimes BX? A structured journal — with your feedings, readings, and photos — is how you find what THIS cut actually wants.
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