X Æ B-M04 by Humboldt Bred
A indica-leaning cross of XJ-13 × Blueberry Muffin, X Æ B-M04 — released by Humboldt Bred — shows up in a lot of tents for good reason. Indoors it typically finishes flowering in around 65 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real X Æ B-M04 grows against.
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Similar strains
| Breeder | Humboldt Bred |
|---|---|
| Type | indica/sativa |
| Flowering time | ±65 days |
| Environment | Outdoors |
| Lineage | XJ-13 × Blueberry Muffin |
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🧬 Explore the family: XJ-13 · Blueberry Muffin
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Growing X Æ B-M04: 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 XJ-13 or Blueberry Muffin 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.
X Æ B-M04 FAQ
How long does X Æ B-M04 take to flower?
X Æ B-M04 typically flowers in around 65 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is X Æ B-M04 an indica or a sativa?
X Æ B-M04 is listed as indica/sativa.
What are the parents of X Æ B-M04?
X Æ B-M04 was bred from XJ-13 × Blueberry Muffin by Humboldt Bred.
What environment does X Æ B-M04 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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