Ultra Lemon Haze by Auto Seeds
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Ultra Lemon Haze lands on the indica-leaning side of the spectrum, Auto Seeds's take on the Super Lemon Haze × Auto Nr1 line. Indoors it typically finishes flowering in around 68 days after the flip to 12/12. The environment targets below are the same stage-by-stage bands the Cultivar journal grades real Ultra Lemon Haze grows against.
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Similar strains
| Breeder | Auto Seeds |
|---|---|
| Type | ruderalis/indica/sativa |
| Flowering time | ±68 days |
| Environment | Outdoors |
| Lineage | Super Lemon Haze × Auto Nr1 |
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Growing Ultra Lemon Haze: 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 Super Lemon Haze or Auto Nr1 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.
Ultra Lemon Haze FAQ
How long does Ultra Lemon Haze take to flower?
Ultra Lemon Haze typically flowers in around 68 days after switching to a 12/12 light schedule. Individual phenotypes vary, so judge harvest readiness by trichome color, not the calendar.
Is Ultra Lemon Haze an indica or a sativa?
Ultra Lemon Haze is listed as ruderalis/indica/sativa.
What are the parents of Ultra Lemon Haze?
Ultra Lemon Haze was bred from Super Lemon Haze × Auto Nr1 by Auto Seeds.
What environment does Ultra Lemon Haze 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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