
Mimosa Bruce Banner XL
Cannabis seeds
by Sweet Seeds
Mimosa Bruce Banner XL Auto Cannabis Seeds
Mimosa Bruce Banner XL Auto is a sativa-dominant autoflowering cannabis seed from Sweet Seeds that crosses an elite Mimosa clone with Purple Punch and Bruce Banner Auto. The result is a resinous, fast-finishing plant with 18–26% THC, sweet fruity terpenes, and yields up to 550g/m² indoors. If you want big harvests from compact autos that finish in 8 weeks flat, this three-way cross delivers.
Why Mimosa Bruce Banner XL Auto Seeds Stand Out
Three-way crosses can go either way — sometimes you get a muddled mess, sometimes every parent contributes its best trait. Mimosa Bruce Banner XL Auto lands firmly in the second camp. Sweet Seeds selected an elite Mimosa clone (itself a cross of Clementine and Purple Punch) and paired it with their Bruce Banner Auto, a line already known for resin production and potency. The "XL" in the name refers to yield potential, not plant size — these stay between 50cm and 130cm, which makes them genuinely versatile for different grow spaces.
What we like most: the speed. Eight weeks from sprout to chop is fast even by autoflower standards, and you're not sacrificing potency or yield to get there. At 18–26% THC, the flower hits hard — a pronounced, uplifting cerebral effect that leans into the 65% sativa genetics. Some phenotypes develop purple colouring toward the end of the cycle thanks to the Purple Punch lineage, which adds serious bag appeal without any extra effort on your part.
The one thing to watch: because the vegetative window is so compressed (as with all autos), any stress in the first two weeks — overwatering, transplant shock, cold snaps — costs you disproportionately. Get the early stage right and the plant takes care of the rest.
Terpene Profile and Aroma of Mimosa Bruce Banner XL Auto
Crack open a cured jar and the first thing that hits you is a wave of sweet strawberry and citrus — bright, almost candy-like. That's the Mimosa parentage doing its thing. Give it a moment and the undertones come through: cypress (woody, slightly resinous) and, surprisingly, a smoked cheese note that adds depth. It's a varied terpene profile that makes each toke something you actually want to pay attention to rather than just inhale on autopilot.
Compared to something like Sweet Seeds' own Gorilla Girl XL Auto, which leans more earthy and diesel, Mimosa Bruce Banner XL Auto is distinctly sweeter and fruitier. If you've grown strains from the Mimosa or Purple Punch family before, you'll recognise the flavour direction — but the Bruce Banner genetics add a sharpness that keeps it from being one-note sweet.
Growing Mimosa Bruce Banner XL Auto Seeds
Autoflowers reward growers who get the fundamentals right early. Mimosa Bruce Banner XL Auto is no exception. Here's what works.
- Germinate directly in your final container — 11L to 15L pots work well. Transplanting autos costs you growing days you can't get back.
- Keep the medium lightly moist for the first 10 days. Seedlings don't need much, and overwatering at this stage is the single most common mistake we see.
- Start feeding lightly around day 10–14 and ramp up quickly. A practical EC progression begins around 1.0–1.2 and increases from there as the plant enters its rapid growth phase.
- Provide 18–20 hours of light throughout the entire cycle. Autos don't need a light-cycle switch, which simplifies things considerably.
- Watch for the stretch around week 3–4. Some phenos can nearly double in height during this period, so leave headroom if you're in a tent.
- Begin checking trichomes around week 7. Most phenotypes finish at week 8, but some may push to 9 depending on conditions.
- If you're after those purple hues, drop night temperatures to around 15–18°C during the final two weeks. The Purple Punch genetics respond well to cooler nights.
Mimosa Bruce Banner XL Auto Yield and Specifications
| Specification | Detail |
|---|---|
| Seed Bank | Sweet Seeds |
| Genetics | Mimosa (Clementine x Purple Punch) x Bruce Banner Auto |
| Type | Autoflowering, Feminised |
| Sativa / Indica | 65% Sativa / 35% Indica |
| THC Content | 18–26% |
| Life Cycle | 8 weeks from sprout |
| Height | 50–130cm |
| Indoor Yield | 450–550g/m² |
| Outdoor Yield | Up to 170g per plant |
| Seeds per Pack | 3 |
| Purple Phenotypes | Yes — some phenos develop purple hues |
Those indoor numbers — 450–550g/m² — are genuinely impressive for an auto that finishes in 8 weeks. For context, many photoperiod strains take 12–14 weeks total (veg + flower) to hit similar numbers. Outdoors, 170g per plant is solid, especially considering the compact stature.
Mimosa Bruce Banner XL Auto vs Other Sweet Seeds Autos
| Trait | Mimosa Bruce Banner XL Auto | Gorilla Girl XL Auto | Cream Mandarine XL Auto |
|---|---|---|---|
| THC | 18–26% | 20–27% | 15–22% |
| Cycle | 8 weeks | 8–9 weeks | 8 weeks |
| Indoor Yield | 450–550g/m² | 450–600g/m² | 400–500g/m² |
| Dominant Terpenes | Strawberry, citrus, cypress | Earthy, diesel, pine | Mandarin, sweet citrus |
| Effect Lean | Uplifting, cerebral | Potent, full-body | Balanced, relaxing |
| Purple Potential | Yes | No | No |
If you're chasing maximum THC and don't mind a more physical effect, Gorilla Girl XL Auto edges ahead. But for flavour, bag appeal, and an uplifting head-focused effect, Mimosa Bruce Banner XL Auto is the better pick. We'd choose this one for daytime flower — the kind of bud you actually want to smoke in the afternoon without writing off the rest of your day.
Running autos in a tent? Pair these seeds with a complete grow kit that includes lighting, ventilation, and a carbon filter — everything Mimosa Bruce Banner XL Auto needs to hit those 550g/m² numbers. A 60x60 or 80x80 tent suits the compact stature of this strain well.
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Medical disclaimer. This content is for informational purposes only and does not constitute medical advice. Consult a qualified healthcare provider before use of any substance.











