Auto Sweet Tooth

Auto Sweet Tooth Cannabis Seeds by BSB Genetics

Auto Sweet Tooth is an autoflowering indica hybrid from BSB Genetics that goes from seed to harvest in just 9 weeks flat. Built from a Sweet Tooth crossed with a Ruderalis, she's compact enough for a balcony grow yet capable of yielding up to 600g/m² indoors — numbers that make most photoperiod strains look twice. If you want sticky, resinous buds without fussing over light schedules, this is where you start.

Why Auto Sweet Tooth Seeds Deserve Your Grow Space

Most autoflowers ask you to trade yield for convenience. Auto Sweet Tooth doesn't play that game. BSB Genetics crossed a flavour-forward Sweet Tooth mother with a Ruderalis father to create a plant that genuinely grows itself — no light cycle changes, no complicated feeding schedules, no babysitting. She stays between 50 and 90cm indoors, which means she'll fit in a 60x60 tent, a spare cupboard, or tucked behind the tomatoes on your terrace.

The real kicker is the output. Under decent conditions — proper lighting, stable temperatures, reasonable nutrition — she'll push up to 600g/m² indoors. Outdoors, individual plants can produce around 200g each. For a 9-week lifecycle, that's genuinely impressive. We've seen growers double-take when they weigh their first Auto Sweet Tooth harvest. The buds come out dense, coated in resin, and smelling like someone opened a bag of sweets in a pine forest. There's a distinct sugary aroma with earthy undertones that fills the room during the final weeks of flowering.

She also carries a natural resistance to common cannabis pests and diseases, which is one less thing to worry about if you're still learning to read your plants. The one honest limitation: at 16% THC, she's not going to compete with 25%+ photoperiod monsters. But that's actually a feature for plenty of growers who want something enjoyable without being knocked sideways. Compared to something like an autoflowering Northern Lights, Auto Sweet Tooth leans harder into flavour and aroma while keeping a similar ease of growth.

Auto Sweet Tooth Grow Specifications

Growing Auto Sweet Tooth Seeds: What to Expect

Auto Sweet Tooth is one of the most forgiving autoflowers we carry. She doesn't need a light schedule change to trigger flowering — she'll do that on her own around week 3. That said, she responds well to 18–20 hours of light throughout her entire lifecycle if you're growing indoors. A small LED panel in a compact tent is all you need.

Here's the thing most first-time growers get wrong with autos: overfeeding. Because the lifecycle is compressed into 9 weeks, there's no time to recover from nutrient burn. Start at half the recommended dose on your nutrient line and increase gradually. She's not a heavy feeder, and her Ruderalis genetics make her tougher than she looks.

The compact stature — 50 to 90cm — means you won't need to do much training. A bit of low-stress training (gently bending the main stem) during the first two weeks of growth can open up the canopy and boost light penetration to lower bud sites. Don't top her, though. Autoflowers don't have the vegetative time to recover from high-stress techniques, and you'll lose yield rather than gain it.

1. Germinate your Auto Sweet Tooth seeds using the paper towel method or directly in a small pot of light, airy soil. Taproots typically appear within 24–72 hours.
2. Transplant seedlings (or thin to one per pot) into their final container — 11 to 15 litres works well. Autos don't like being repotted mid-grow, so plant into the final pot early.
3. Set your light schedule to 18/6 or 20/4 and maintain it for the entire lifecycle. No need to switch to 12/12.
4. Begin feeding at half-strength nutrients around week 2. Switch to bloom nutrients when you see the first pistils appear, typically around week 3.
5. Monitor humidity: keep it around 60–65% during vegetative growth, dropping to 40–50% during flowering to prevent mould on those dense, resinous buds.
6. Flush with plain water for the final 7–10 days before harvest. This improves the flavour of the finished product noticeably.
7. Harvest around week 9 when trichomes are mostly milky with a few turning amber. Use a jeweller's loupe — your eyes alone won't cut it.

Flavour, Aroma, and Effects of Auto Sweet Tooth

The name isn't marketing fluff. Auto Sweet Tooth genuinely smells and tastes sweet — a candied, almost berry-like sweetness layered over earthy, floral notes. During the last two weeks of flowering, the terpene profile intensifies and you'll notice the room filling with that unmistakable sugary scent. If you're growing without a carbon filter, your neighbours will know about it.

The indica dominance comes through clearly in the effect profile. The body sensation is deeply calming and physically relaxing, the kind that makes the sofa feel like it was custom-built for your exact body shape. At 16% THC with a moderate CBD presence, the experience stays comfortable rather than overwhelming. According to research published in the National Academies of Sciences (NCBI, 2017), during acute cannabis use, sensitivity to certain stimuli such as music and colours may be enhanced, and perception of time may be altered. That tracks with what growers report from this strain — a slow, warm, sensory experience rather than anything racy or cerebral.

The moderate CBD content is worth noting. According to a 2020 study on tetrahydrocannabinol-rich cannabis extracts (PMC7774498), the combination of THC with CBD and other cannabinoids — secondary compounds that contribute to a broader entourage effect — may modulate the overall experience compared to isolated THC alone. Traditionally, Sweet Tooth genetics have been valued by those seeking herbal support for tension, restlessness, and physical discomfort.

Auto Sweet Tooth vs Photoperiod Sweet Tooth

If you're deciding between the autoflowering and photoperiod versions, it comes down to what you value more: speed and simplicity, or maximum potency and control.

We'd pick the auto version for anyone running their first or second grow, anyone short on vertical space, or anyone who wants multiple harvests per season outdoors. The photoperiod version makes more sense if you've got the experience and space to train plants properly and you're chasing peak potency above all else.