Atomic

Buy Atomic Feminised Cannabis Seeds by Bomb Seeds

Atomic feminised cannabis seeds from Bomb Seeds fuse Chemdawg, Kush, and THC Bomb genetics into a resin-drenched powerhouse testing at 22–26% THC. With a flowering time of just 7–8 weeks and yields up to 550g/m² indoors, this strain delivers serious weight without making you wait. Order Atomic feminised cannabis seeds when you want a citrus-and-fuel terpene profile as complex as the triple-cross genetics behind it.

Atomic Cannabis Seeds: Genetics and Lineage

Atomic feminised cannabis seeds carry a triple-cross lineage built from three distinct genetic pillars, each contributing something specific. The foundation is an original US clone of Chemdawg — a strain famous for its diesel-fuel pungency and potent resin production. That clone was crossed with a Kush variety sourced from California's Emerald Triangle, adding structural density and a shorter flowering period. The final layer is Bomb Seeds' own THC Bomb, their flagship strain bred specifically for maximum cannabinoid content.

The result sits at 22–26% THC. According to the EMCDDA's Cannabis Drug Profile, tetrahydrocannabinol (THC) is the principal psychoactive constituent of cannabis, with cannabinoid ratios varying significantly across cultivars depending on breeding selection. At this THC concentration, Atomic sits firmly in the upper tier of what's commercially available from seed. For context, most strains on the market hover around 15–20% — Atomic's floor is where many varieties peak.

The Chemdawg influence is the most immediately obvious when you open the bag. There's a sharp fuel note that hits you before anything else, followed by a citrus brightness from the Kush side. The berry and menthol undertones are subtler — they come through more on the exhale when smoked or in the later stages of a dry herb vaporiser session. If you've grown THC Bomb before, you'll recognise the resin coverage: thick trichome layers that make the buds look frosted even weeks before harvest.

Growing Atomic Seeds: Yield, Height, and Flowering Time

Atomic produces 450–550g/m² indoors with a flowering period of just 7–8 weeks — that's fast for a strain pushing 26% THC. Plants stay between 80 and 150cm, making them manageable in tents and grow rooms without aggressive training, though they respond well to topping and LST if you want to keep them on the shorter end.

Outdoors, harvest falls in October. Bomb Seeds describes the outdoor buds as thick, big, and heavily coated in resin — the kind of dense nuggets that feel heavier than they look when you hold them. The strain is rated as easy to grow, which in our experience with Bomb Seeds genetics usually means it handles minor environmental stress (temperature swings, slight overfeeding) without throwing hermaphrodite flowers or stalling growth.

One honest limitation worth noting: the intense fuel and citrus terpene profile means Atomic is a loud strain. During the last 3–4 weeks of flowering, the smell is unmistakable. If you're growing indoors, a carbon filter isn't optional — it's the difference between a discreet hobby and your entire building knowing what you're up to. We'd rate the odour output at 8 out of 10 compared to other strains we carry.

For best results indoors, aim for 600W HPS or equivalent LED coverage over a 1m² canopy with 4 plants. The 7–8 week flowering window means you can fit more cycles per year than slower-finishing strains — roughly 5–6 full runs annually if you have a separate vegetative space. That maths out to potentially 2,250–3,300g/m² per year, which is serious productivity from a single square metre.

Aroma, Flavour, and Effects of Atomic Feminised Cannabis Seeds

Atomic's terpene profile delivers citrus and fuel as the dominant notes, with berries and menthol sitting underneath. The fuel comes straight from the Chemdawg genetics — it's that sharp, almost chemical diesel scent that experienced growers either love or find overwhelming. The citrus is brighter and sweeter, more grapefruit than lemon, and it balances the heavier fuel notes nicely. When you break a cured bud apart, the menthol comes forward — a cool, almost minty quality that's unusual and immediately recognisable.

The effect profile leans towards an initial wave of energy and uplift, followed by physical relaxation that eases into the muscles. Bomb Seeds describes it as a powerful, intensely uplifting onset — at 22–26% THC, the effects arrive fast and the intensity is not subtle. This is a strain where less is more if you're not accustomed to high-THC varieties. A couple of draws from a vaporiser at 185–195°C will give you the full flavour spectrum while keeping the intensity manageable.

Compared to Bomb Seeds' other offerings like Berry Bomb or Big Bomb, Atomic hits harder and faster. Berry Bomb is fruitier and gentler — a better choice if you want something social and easy-going. Atomic is the one you reach for when you want to feel the full weight of what modern cannabis breeding can produce. It's closer in intensity to Gorilla Bomb, but with a more complex flavour thanks to that triple-parent lineage.

Why Atomic Stands Out in the Bomb Seeds Catalogue

Atomic is Bomb Seeds' highest-THC offering that still finishes in under 8 weeks. Most strains that test above 22% need 9–10 weeks of flowering, which adds up when you're paying for electricity and nutrients. Atomic gives you top-shelf potency on a mid-range timeline.

The Chemdawg genetics also bring something you don't get from Bomb Seeds' other lines. That original US clone is a piece of cannabis history — Chemdawg has been a building block for dozens of famous strains (Sour Diesel, OG Kush) and its influence on Atomic's resin production is obvious. The buds come out dense and sticky, the kind that leave residue on your fingers and gum up a grinder if you don't clean it regularly.

From a practical standpoint, the 80–150cm height range is the sweet spot for indoor growers. You're not fighting a 2-metre sativa that outgrows your tent, and you're not dealing with a tiny indica that needs perfect conditions to produce decent yields. It's a strain that rewards basic competence — keep the pH right, don't overfeed, give it decent light, and it'll deliver 450–550g/m² without drama.

How to Grow Atomic Feminised Cannabis Seeds

1. Germinate seeds using the paper towel method or directly in a propagation plug. Atomic seeds typically crack within 24–72 hours at 22–25°C.
2. Transplant seedlings into their final containers once the first set of true leaves appears. A 10–15 litre pot works well for indoor plants; outdoors, go larger (25–30 litres) to support the root system through to October harvest.
3. Vegetate for 3–4 weeks under 18/6 lighting. Top once above the 5th node if you want to control height and encourage lateral branching. The strain responds well to low-stress training — tie branches down to open the canopy and improve light penetration.
4. Flip to 12/12 lighting to trigger flowering. The 7–8 week countdown starts from the first visible pistils, not from the light switch. Expect stretch of 50–100% during the first two weeks of flower.
5. During weeks 3–6 of flowering, increase phosphorus and potassium in your feeding schedule. This is when the buds pack on most of their weight and resin. Watch for the trichomes to shift from clear to milky — harvest when roughly 70–80% are milky with 10–20% amber for a balanced effect.
6. Flush with plain water for the final 7–10 days before harvest. This improves the flavour of the cured bud by allowing the plant to use up stored nutrients.
7. Dry in a dark room at 18–22°C with 55–65% humidity for 7–14 days, then cure in sealed glass jars for a minimum of 2 weeks. The citrus and menthol notes develop significantly during curing — rush this step and you'll miss half the flavour.

Frequently Asked Questions

Last updated: April 2026