Valencia Seeds – Pluto Cut RF3 Auto

Pluto Cut RF3 Auto is a serious Kush-style automatic built around fuel, incense and heavy relaxing effects rather than fruit or dessert flavours. Seed City Bulk Cannabis Seeds offers this Valencia Seeds release as feminised autoflowering seeds, with an 80–90 day total life cycle and a stocky, large-flowered structure.

The documented cross is Pluto Cut of Quattro Kush × OG Kush Auto. The Pluto Cut is a multiple-cup-winning clone selection of Quattro Kush, while the automatic parent is ETHOS Genetics’ OG Kush Auto, made from ’92 OG Kush × DieselRyder. Quattro Kush F3 itself is listed as 707 Headband × TK × SFV, so there’s a clear thread of American Kush, OG, sour and fuel-heavy breeding running right through the family.

That background matters because this isn’t just a famous name pushed into automatic form in one step. ETHOS began its OG Kush Auto project in 2008, aiming to keep more of the strength and complexity associated with photoperiod cannabis while adding automatic flowering behaviour. Pluto Cut RF3 Auto then brings a celebrated Quattro Kush clone into that worked OG Kush automatic line. ETHOS markets it as RF3 and describes the release as an F3 cross, with the automatic parent also described as OG Kush Auto F4.

Gas, incense and sweet flowers

The aroma is one of the clearest reasons to pick Pluto Cut RF3 Auto. The finished profile is given as gasoline, incense and sweet flowers. The fuel side is pungent and oily, more petrol fumes than soft earth. Behind it, the floral sweetness takes the edge off without turning the strain into candy, and the incense note adds a dry, smoky, resinous depth.

Both parents help explain that profile. Quattro Kush is described as gassy, sour and herbal, while OG Kush Auto brings petrol, pine and spice from its ’92 OG Kush and DieselRyder background. The finished plant keeps that old-school Kush feel: gas first, sweet floral notes behind it, then a deeper incense-like finish. If you’re bored of sweet shop autos, this goes in a much darker, more traditional direction.

Stocky automatic growth

Pluto Cut RF3 Auto is described as stocky, compact and productive, with large flowers that fill the available plant structure well. It’s not presented as a tall, narrow sativa type. The build is more in keeping with its Kush and OG background: shorter, heavier, and focused around weighty flower formation.

The expected total life cycle is 80–90 days. For an autoflower, that full cycle is more useful than a photoperiod-style flowering-time figure, because the plant moves into bloom according to maturity rather than a change in day length. ETHOS classifies the yield simply as High, and lists the variety for indoor or outdoor growing.

Resin is part of the wider family story too. Quattro Kush is noted for extraction suitability, and the Pluto Cut was kept and reused in breeding because it showed qualities worth preserving. ETHOS has also used the same Pluto Cut in other projects, including 10th Planet R1, which pairs Planet of the Grapes R1 with the Pluto Cut. That gives the clone more weight than a memorable nickname alone.

Heavy euphoric character

Potency is given as 25–30%+ total active cannabinoids. That is TAC rather than a stated THC percentage, and ETHOS also points to alternative cannabinoids as part of the strain’s unusually intense character. No named minor cannabinoid percentages are given, so the useful point is the broader cannabinoid profile rather than a guessed THC figure.

The effect is described as euphoric with a classic indica-style heavy punch. Its OG Kush Auto parent is also noted for euphoric and relaxing effects, so the overall character stays on the powerful, calming and body-oriented side. It’s better understood as an indica-leaning modern hybrid than a pure traditional indica, but the compact structure, Kush-heavy parentage and physical weight all point the same way.

Pluto Cut RF3 Auto suits customers who want a developed autoflower with proper Kush identity: stocky growth, large flowers, high yield, gasoline and incense terpenes, and a heavy euphoric finish. The breeding is modern, but the flavour target is old-school.