Guava Auto RF3

Guava Auto RF3 is FastBuds’ upgraded take on its Guava Auto line, refined through eight generations for better stability, tighter structure and more uniform plants. It’s available as feminised autoflowering seeds, with a 50% sativa and 50% indica balance.

The RF3 work is aimed at growers who want a more consistent Guava Auto with heavier trichome coverage and denser flowers. FastBuds describes this version as having tighter stacking and stronger resin production, making it a particularly relevant pick for flavour-led growers and anyone interested in hash or extraction.

Plants are listed at 70–120 cm, with an XXL size rating and an 8–9 week flowering time. Indoor yields are given at 450–600 g/m², while outdoor plants can produce 60–300 g each. It’s suitable for indoor, outdoor, greenhouse and mixed-light setups, and FastBuds rates it for climates from very hot through to very cold.

One of the more practical points here is how straightforward the grow is meant to be. Guava Auto RF3 is described as vigorous and resilient, with exceptional resistance to pests, mould and environmental stress. It’s also noted for producing rock-hard, frost-heavy buds without heavy feeding or complicated training, so the focus is on reliable performance rather than a fussy cultivation routine.

The aroma and taste stay firmly in tropical fruit. Expect a sweet guava profile with creamy fruit layers, plus a very strong smell rating. FastBuds says the terpene profile has been sharpened in this RF3 version, giving a richer and sweeter guava character that can fill a room before harvest.

THC is listed at up to 30%, with CBD below 1%. The effect is described as bright, uplifting and functional at first, with a joyful, creative feel that later settles into a smooth body relaxation. It’s still framed as productive and social rather than heavy or couch-bound.

Guava Auto RF3 makes most sense if you want a fast tropical auto with strong resin output, sweet guava flavour and a more worked, uniform version of the original Guava Auto line.