The shortest version: Bomb Seeds's take on hybrid genetics, 20-25% THC, 9-11 weeks flowering, moderate grow.

Lineage: Atomic traces back to Bomb Seeds' Amsterdam program, and that origin shows up clearly in the numbers — 20–25% THC with a 9–11 week flower window puts this squarely in the "patient but rewarded" category for moderate growers. Plants run 100–180 cm depending on training, so indoor growers working with tent space will want to top early. Outdoor runs in warmer Canadian microclimates (Southern Ontario, southern BC) should finish comfortably before mid-October.

The scent profile leans citrus up front, with diesel and a dry earthiness coming through in the final two weeks of flush. Expect 400–500 g/m² under a solid indoor light setup — that number assumes reasonable environmental control, not ideal. The effect sits closer to active-minded than sedating, which makes afternoon sessions manageable. Best suited to growers who've run a few feminized photoperiods before and want a reliable high-THC plant without chasing boutique genetics.

Genetics & Lineage

Atomic traces its genetics to Atomic (Bomb Seeds). This hybrid-dominant feminized seed produces plants that express the best traits of its parent lineage, delivering consistent results for growers of all experience levels. Bred by Bomb Seeds, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily relaxed and euphoric effects, making this strain ideal for evening use and unwinding after a long day. The body-centered stone builds gradually, easing tension and promoting deep physical relaxation. With THC levels reaching 23%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Atomic delivers THC levels of 20-25%, placing it in the moderate-to-strong range that most regular consumers find comfortable. CBD content is minimal, so the psychoactive effects are front and center. The onset typically arrives within minutes with a balanced head-and-body experience that evolves over time.

Growing Atomic

Atomic is rated as moderate difficulty, making it suitable for growers with some experience. Basic knowledge of nutrient schedules, pH management, and environmental controls will help maximize results.

Indoor Growing: Expect a flowering time of 9-11 weeks with yields of 400-500g/m2. Plants typically reach 100-180cm indoors. Standard training techniques like topping and LST will help manage height and improve light penetration. Maintain temperatures between 68-80°F with relative humidity around 45-55% during flowering.

Outdoor Growing: This versatile strain performs well in both indoor and outdoor environments. Outdoor growers in warm climates can expect harvest from late September through October. Watch for humidity during late flowering to prevent bud rot, especially with dense flower formations.

Flavor, Aroma & Terpene Profile

Atomic features a citrus, diesel, earthy, floral terpene profile that develops complexity throughout the flowering cycle. Pungent fuel and chemical notes hit first, followed by an earthy, musky undertone. The aroma intensifies significantly during the final 2-3 weeks of flowering — carbon filtration is recommended for indoor grows requiring discretion.

Medical Benefits

While individual experiences vary, Atomic is commonly reported to help with stress relief, chronic pain, insomnia, and muscle tension. The deeply relaxing effects make it a popular choice among medical users seeking nighttime relief. As with any cannabis strain, start with a low dose and increase gradually. Consult a healthcare professional before using cannabis for medical purposes.

Who Should Grow Atomic?

This strain is ideal for intermediate growers ready to push their skills and be rewarded with superior results. If you're looking for evening relaxation and deep stress relief, this is your strain.

Why Buy Atomic from Seennabis?

When you purchase Atomic through Seennabis, you are buying directly from Bomb Seeds — Dutch breeder behind the iconic 'Bomb' line — THC Bomb, Cherry Bomb, Hash Bomb, Atomic. Every order includes verified genetics, discreet shipping, and responsive seller support.