Bubble Kush Autoflower
Cannabis seeds
by Royal Queen Seeds
Bubble Kush Autoflower Cannabis Seeds
Bubble Kush Autoflower is an indica-dominant autoflowering cannabis seed from Royal Queen Seeds that delivers sweet, bubblegum-scented harvests in just 8–9 weeks from germination. Built from a three-way cross of OG Kush, Bubble Gum, and Royal Critical Automatic, this strain packs relaxing body effects and mouth-watering flavour into a compact plant that barely tops a metre indoors. If you want quick results without sacrificing taste or yield, this is where you start.
Pack Sizes
| Pack | Seeds | Best for |
|---|---|---|
| 1 seed | 1 | Test run — try the genetics before committing |
| 3 seeds | 3 | Small tent or single-plant rotation with a backup or two |
| 5 seeds | 5 | Standard grow — fill a 60x60 or 80x80 tent comfortably |
| 10 seeds | 10 | Serious run or outdoor guerrilla planting across multiple spots |
All Bubble Kush Autoflower seeds from Royal Queen Seeds are feminised, so every seed should produce a flowering female. No need to sex your plants or waste space on males.
Why Bubble Kush Autoflower Seeds Deserve Your Tent Space
We've carried Royal Queen Seeds for years, and Bubble Kush Autoflower is one of those strains that keeps coming back into people's carts. The reason is simple: it's genuinely easy to grow, finishes fast, and the dried flower smells like someone unwrapped a pack of strawberry bubblegum in a pine forest. That sweet, candy-like aroma comes straight from the Bubble Gum parent, while OG Kush contributes earthy, slightly spicy undertones that stop it being one-dimensional.
The real selling point? Time. From the moment you drop the seed into a glass of water, you're looking at 8–9 weeks until harvest. Not 8–9 weeks of flowering — 8–9 weeks total. That's roughly half the time a photoperiod strain needs. The Royal Critical Automatic genetics bring the speed and the yield, producing 350–400g/m² indoors under a decent light. Outdoors, expect 120–170 grams per plant at a discreet 100–140cm height. Nobody's going to spot these over a garden fence.
The honest limitation: 16% THC isn't going to compete with the 25%+ photoperiod monsters. But that's not what this strain is for. Bubble Kush Autoflower is about flavour, ease, and a relaxing physical effect that doesn't knock you sideways. If you want the strongest possible hit, look at something like Royal Gorilla instead. If you want a genuinely enjoyable smoke that you grew yourself in two months flat, this is the one.
Bubble Kush Autoflower Grow Specifications
| Specification | Detail |
|---|---|
| Seed bank | Royal Queen Seeds |
| Genetics | OG Kush x Bubble Gum x Royal Critical Automatic |
| Type | Autoflowering, feminised |
| Indica / Sativa / Ruderalis | 60% / 10% / 30% |
| THC | 16% |
| CBD | Low |
| Seed to harvest | 8–9 weeks |
| Indoor height | 70–100 cm |
| Outdoor height | 100–140 cm |
| Indoor yield | 350–400 g/m² |
| Outdoor yield | 120–170 g per plant |
| Difficulty | Beginner-friendly |
Complete your setup: pair these Bubble Kush Autoflower seeds with a propagation kit to nail germination, and grab a carbon filter if you're growing indoors — that bubblegum terp profile is gorgeous but it carries. A 60x60 or 80x80 grow tent from our range fits 2–4 of these compact plants comfortably.
Growing Bubble Kush Autoflower Seeds Indoors and Outdoors
Bubble Kush Autoflower stays short. Indoors, you're looking at 70–100cm — that's shorter than most kitchen worktops. This makes her a strong pick for small tents, converted wardrobes, or any space where height is the limiting factor. The 60% indica genetics keep the structure bushy with tight internodal spacing, so light penetrates well without heavy training.
Because she's autoflowering, light schedule doesn't trigger flowering — the Ruderalis genetics handle that on a timer. Most growers run 18/6 or 20/4 from start to finish. No need to switch to 12/12, no light leak panic, no separate veg and flower rooms. Plug in, water, feed, harvest.
Outdoors, Bubble Kush Autoflower tops out at 100–140cm. That's low enough for a balcony grow behind a railing or a guerrilla spot in a clearing. The fast cycle means you can start seeds in late spring and harvest before the weather turns, even in northern European climates. Some growers squeeze in two outdoor runs per season — plant the first batch in April, harvest in June, drop a second round immediately.
One thing to watch: don't transplant autoflowers if you can avoid it. The short life cycle means any root stress costs you days you can't get back. Start in the final pot — a 7–11 litre container works well for these. And go easy on the nutrients. We've seen growers burn autoflowers by feeding at full photoperiod strength. Back off to about 75% of what the nutrient chart says and watch how the plant responds.
How to Grow Bubble Kush Autoflower
- Soak your Bubble Kush Autoflower seed in a glass of room-temperature water for 12–24 hours until it sinks. Then transfer to a damp paper towel in a warm, dark spot until the taproot appears (usually 24–72 hours).
- Plant the germinated seed directly into its final pot — 7 to 11 litres of light, airy growing medium. Bury the seed about 1cm deep, taproot pointing down. Keep the soil moist but not waterlogged.
- Set your light schedule to 18 hours on, 6 hours off. Maintain temperatures between 20–26°C and relative humidity around 65–70% during the seedling stage.
- Begin light feeding around week 2 with a mild vegetative nutrient solution at roughly 75% of the manufacturer's recommended dose. Autoflowers are sensitive to overfeeding — yellowing leaf tips are your early warning.
- Flowering begins automatically around weeks 3–4. Switch to a bloom nutrient and drop humidity to 40–50% to prevent mould in those dense, indica-style buds.
- Monitor trichomes from week 7 onwards. When most trichomes shift from clear to milky with a few turning amber, it's harvest time — typically 8–9 weeks from germination.
- Cut, trim, and hang dry in a dark room at 18–20°C and 55–60% humidity for 7–10 days. Cure in glass jars for at least two weeks for the best flavour development — that sweet bubblegum profile really opens up with a proper cure.
Flavour and Effects of Bubble Kush Autoflower
The first thing you notice when you open a jar of dried Bubble Kush Autoflower is the smell: sweet, almost candy-like, with a warm earthy base that stops it smelling artificial. It's the Bubble Gum genetics doing their thing, and it translates directly into the taste. On the inhale, you get that sugary, slightly fruity sweetness. On the exhale, there's a subtle kush earthiness and a hint of spice from the OG Kush side. Your mouth genuinely waters — and appetite tends to follow.
The effect is heavily body-oriented, as you'd expect from a 60% indica hybrid. At 16% THC, it's not overwhelming — there's a pleasant physical relaxation that loosens tight muscles and settles you into the sofa without gluing you there. In smaller amounts, you stay functional. In larger amounts, it leans towards sleep. Traditionally, indica-dominant strains like this have been used as a wind-down smoke at the end of the day, and Bubble Kush Autoflower fits that role well.
Worth noting: the low CBD content means you're not getting significant cannabidiol alongside the THC. If you're specifically after a balanced THC:CBD ratio, this isn't the strain — look at something like Royal Medic or Painkiller XL from the same seed bank.
Frequently Asked Questions
How long does Bubble Kush Autoflower take from seed to harvest?
8–9 weeks from germination to harvest. That's the full cycle — no separate vegetative and flowering phases to manage. Drop the seed, and you're trimming buds roughly two months later.
What yield can I expect from Bubble Kush Autoflower indoors?
Royal Queen Seeds rates indoor yield at 350–400g/m² under optimal conditions. In a well-lit 80x80 tent with 3–4 plants, that's realistic. Outdoors, expect 120–170 grams per plant.
Is Bubble Kush Autoflower good for beginners?
Yes — it's one of the more forgiving autoflowers we carry. The compact size (70–100cm indoors) means you don't need a tall tent, the fast cycle limits the window for things to go wrong, and the Ruderalis genetics mean no light schedule changes. Just don't overfeed.
What are the effects of Bubble Kush Autoflower?
Predominantly physical relaxation from the 60% indica genetics, with a sweet mood lift. At 16% THC, it's moderate in strength — relaxing without being sedating in smaller amounts. Larger quantities lean towards drowsiness and appetite stimulation.
Can Bubble Kush Autoflower be grown outdoors?
Absolutely. She stays between 100–140cm outdoors, which is discreet enough for balconies and guerrilla spots. The 8–9 week cycle means you can harvest before autumn in most European climates, and some growers fit two runs into a single season.
What does Bubble Kush Autoflower taste like?
Sweet and candy-like on the inhale — think strawberry bubblegum — with earthy, slightly spicy kush undertones on the exhale. The flavour improves significantly with a proper 2–3 week cure in glass jars.
Do I need to change the light schedule for autoflowering seeds?
No. Autoflowers like Bubble Kush Autoflower flower based on age, not light cycle. Most growers run 18/6 or 20/4 from germination to harvest. No need to switch to 12/12.
What size pot should I use for Bubble Kush Autoflower?
A 7–11 litre pot works well. Plant directly into the final container — transplanting autoflowers causes root stress that costs you growth time you can't recover in an 8–9 week cycle.
Last updated: April 2026
Related products
You might also like
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.