Sweet Mimosa XL
Cannabis seeds
by Sweet Seeds
Sweet Mimosa XL Auto Cannabis Seeds by Sweet Seeds
Sweet Mimosa XL Auto is a 4th-generation autoflowering cannabis seed that delivers dense, resinous buds with 19–23% THC in roughly 9 weeks from germination. Bred by Sweet Seeds from a cross of Clementine and Purple Punch, this slightly sativa-dominant auto combines serious potency with a fresh citrus aroma that fills the room the moment you crack a jar open. If you want a fast, heavy-yielding auto with proper genetics behind it, this is one of the strongest options in the Sweet Seeds lineup.
Why Sweet Mimosa XL Auto Stands Out
There are dozens of autoflowering seeds on the market claiming big yields and high THC. Most of them disappoint on at least one front. Sweet Mimosa XL Auto is a genuine exception — and here's why we'd pick it over a generic auto every time.
The genetics are rock-solid. This is a 4th-generation cross, meaning Sweet Seeds has refined the line over multiple breeding cycles to stabilise the traits that matter: consistent THC levels between 19% and 23%, a reliable 9-week life cycle, and yields that genuinely reach 500–600g/m² indoors under the right conditions. Outdoors, expect 60–200g per plant depending on your climate and setup. That's not marketing fluff — those numbers are achievable with decent light and proper feeding.
The aroma is where this strain really earns its name. Sweet Mimosa XL Auto throws out a sweet tropical fruit scent with layers of citrus, grapes, berries, and cherries. It's not subtle. If you're growing without a carbon filter, your neighbours will know about it. The flavour carries through when dried and cured properly — bright citrus on the inhale, sweet berry on the exhale.
One honest limitation: like most autos, Sweet Mimosa XL Auto doesn't respond well to heavy training techniques like mainlining or extreme topping. You can do some light LST (low stress training) in the first few weeks, but the short veg window means the plant needs to recover fast. If you're the kind of grower who likes to sculpt a canopy over 6 weeks of veg, a photoperiod version might suit you better. But if speed and simplicity are what you're after, this auto delivers.
Sweet Mimosa XL Auto Grow Guide
Growing Sweet Mimosa XL Auto is straightforward, even if you've only got one or two grows under your belt. The entire cycle runs about 9 weeks from germination — roughly 3–4 weeks of vegetative growth followed by 5–6 weeks of flowering. Here's how to get the most out of her.
- Germinate your Sweet Mimosa XL Auto seeds using the paper towel method or directly in a small pot of light, airy soil. Taproots typically emerge within 24–72 hours.
- Transplant seedlings into their final container early — autos don't like root disturbance mid-cycle. A 15–20 litre fabric pot works well for indoor grows.
- During the vegetative phase (weeks 1–4), feed with a balanced organic fertiliser. Sweet Seeds specifically recommends supplementing with Trichoderma and mycorrhizae to promote a healthy root system. The organic nutrients fuel growth while reducing the risk of overfeeding — a common mistake with autos.
- Keep your light cycle at 18/6 or 20/4 throughout the entire grow. Autos don't need a light schedule change to trigger flowering — Sweet Mimosa XL Auto will flip on her own around week 3–4.
- Once flowering begins, switch to a bloom-phase nutrient. Watch the trichomes closely from week 7 onwards. Harvest when roughly 70–80% of trichomes have turned milky with a few amber ones appearing.
- Dry in a dark, well-ventilated space at around 18–20°C and 55–60% humidity for 7–10 days. Cure in glass jars for at least 2 weeks — the citrus terpenes develop beautifully with a proper cure.
Sweet Mimosa XL Auto Specifications
| Spec | Value |
|---|---|
| Seed Bank | Sweet Seeds |
| Genetics | Clementine x Purple Punch (4th generation) |
| Type | Autoflowering, feminised |
| Dominance | Slightly sativa-dominant |
| THC | 19–23% |
| Total Life Cycle | Approximately 9 weeks from germination |
| Vegetative Phase | 3–4 weeks |
| Flowering Phase | 5–6 weeks |
| Indoor Yield | 500–600g/m² |
| Outdoor Yield | 60–200g/plant |
| Aroma | Sweet tropical fruit, citrus, grapes, berries, cherries |
| Seeds per Pack | 3 |
| SKU | CSSW0099 |
Sweet Mimosa XL Auto Effects and Aroma Profile
The effects of Sweet Mimosa XL Auto are extremely balanced. The sativa side delivers a happy, creative cerebral stimulus — the kind that makes you want to draw, write, or just have a really good conversation. Meanwhile, the indica genetics from Purple Punch provide a gentle body relaxation that takes the edge off without pinning you to the sofa. It's a proper daytime strain. Light one up in the morning or at a social event and you'll feel motivated, uplifted, and present.
The aroma deserves its own paragraph. Crack a cured bud open and you're hit with a wave of sweet citrus — think fresh-squeezed clementines mixed with grape soda and a hint of cherry. The terpene profile is complex enough to keep your nose interested, and it translates directly into the taste. If you've grown strains that smell amazing but taste like hay, Sweet Mimosa XL Auto is the antidote. A proper 2–3 week cure brings out the full spectrum of fruit flavours.
Sweet Mimosa XL Auto vs Other Autoflowering Seeds
How does Sweet Mimosa XL Auto stack up against other popular autos? Here's a quick comparison with two other strains we carry.
| Feature | Sweet Mimosa XL Auto | Typical Sativa Auto | Typical Indica Auto |
|---|---|---|---|
| THC Range | 19–23% | 15–20% | 18–22% |
| Total Cycle | ~9 weeks | 10–12 weeks | 8–9 weeks |
| Indoor Yield | 500–600g/m² | 350–450g/m² | 400–500g/m² |
| Dominant Effect | Balanced (creative + relaxed) | Cerebral, energising | Heavy body, sedating |
| Aroma | Citrus, berry, tropical fruit | Varies widely | Earthy, sweet, kushy |
Sweet Mimosa XL Auto hits a sweet spot that's hard to find in the auto world: sativa-leaning effects with indica-level yields and a total cycle time that's shorter than most sativa autos. The 500–600g/m² indoor potential puts it in the top tier for autoflowering productivity.
Complete your setup with Trichoderma and mycorrhizae supplements to maximise root health during the vegetative phase — Sweet Seeds specifically recommends these for Sweet Mimosa XL Auto. If you're growing indoors, a carbon filter is non-negotiable with this strain; the citrus terpenes are pungent and will fill your entire living space without proper extraction.
Who Should Grow Sweet Mimosa XL Auto Seeds
Sweet Mimosa XL Auto works best if you want a fast turnaround without sacrificing potency or flavour. The 9-week seed-to-harvest cycle means you can fit multiple runs per year indoors, or time an outdoor grow to avoid late-season rain and mould.
Newer growers will appreciate how forgiving this strain is. The organic feeding approach recommended by Sweet Seeds — balanced fertiliser plus beneficial fungi — keeps things simple. You're less likely to burn the plants compared to running aggressive synthetic nutrient schedules. One grower we've seen pushed feeding up to 1100+ ppm and the plant handled it without complaint, which tells you something about the vigour in these genetics.
Experienced growers will appreciate the yield potential. Getting 500–600g/m² from an auto in 9 weeks is genuinely impressive. Pair that with 19–23% THC and a terpene profile that actually delivers on flavour, and you've got a commercial-grade auto that doesn't feel like a compromise.
The one group this strain isn't ideal for: growers who want a heavy, sedating indica effect. Sweet Mimosa XL Auto leans sativa in its effects. If you're after a couch-lock strain for evening use, look at something with stronger indica genetics instead.
Frequently Asked Questions
How long does Sweet Mimosa XL Auto take from seed to harvest?
About 9 weeks total. That breaks down into 3–4 weeks of vegetative growth and 5–6 weeks of flowering. It's one of the faster autos available at this yield level.
What yield can I expect from Sweet Mimosa XL Auto indoors?
Under good indoor conditions with proper lighting, expect 500–600g/m². Outdoors, yields range from 60–200g per plant depending on climate, pot size, and light exposure.
Is Sweet Mimosa XL Auto suitable for beginners?
Yes. The autoflowering genetics mean no light schedule changes, and Sweet Seeds recommends organic feeding with Trichoderma and mycorrhizae — a simple, hard-to-mess-up approach. Just avoid heavy training techniques.
What does Sweet Mimosa XL Auto smell and taste like?
Expect a bold sweet citrus aroma — fresh clementine, grape, berry, and cherry notes. The flavour carries through after a proper cure. It's one of the fruitiest autos we've come across.
Can I top or train Sweet Mimosa XL Auto?
Light LST (low stress training) works well if started early in veg. Avoid topping or heavy training — the short vegetative window doesn't give the plant enough recovery time, and you'll likely reduce your final yield.
What light schedule should I use for Sweet Mimosa XL Auto?
Run 18 hours on, 6 hours off (18/6) or 20/4 throughout the entire grow cycle. Autoflowers don't need a 12/12 flip to trigger flowering — Sweet Mimosa XL Auto transitions on her own.
How many seeds come in a pack of Sweet Mimosa XL Auto?
Each pack contains 3 feminised autoflowering seeds.
Last updated: April 2026
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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.