Quick read: 20-25% THC, 100-180cm mature height, 9-11 weeks bloom. Genetics: Cluster Bomb (Bomb Seeds). Difficulty: moderate.

Smell-first: crack a jar of Cluster Bomb and you get a layered punch of ripe fruit, damp skunk, and something almost floral underneath — not what you'd expect from a strain sitting at 20–25% THC. That potency sits in a genuinely heavy indica frame, and the 9–11 week flower window reflects that; this isn't a cultivar that rushes. Feminized stock keeps things manageable for a moderate-difficulty grow, and the payoff is real — 700–800 g/m² is achievable indoors with decent light intensity and a controlled canopy, though outdoor growers in warmer Canadian zones (think southern Ontario or the Okanagan) report similar numbers when the season cooperates.

The stone is weighted and body-forward, best suited to evening use. It's not complicated to grow, but it does reward growers who stay on top of airflow — those dense, resinous clusters need room to breathe or you're asking for humidity problems. Best suited to growers who've done a run or two and want a high-output indica without chasing exotic genetics.

Genetics & Lineage

Cluster Bomb traces its genetics to Cluster Bomb (Bomb Seeds). This indica-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

Cluster Bomb 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 5-10 minutes, settling into the body as a warm, heavy relaxation.

Growing Cluster Bomb

Cluster Bomb 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 700-800g/m2. Plants typically reach 100-180cm indoors. This strain responds exceptionally well to SCROG (Screen of Green) and LST (Low Stress Training), which can boost yields significantly. Maintain temperatures between 68-80°F with relative humidity around 40-50% 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 the dense, heavy buds this strain produces.

Flavor, Aroma & Terpene Profile

Cluster Bomb features a fruity, skunky, floral terpene profile that develops complexity throughout the flowering cycle. Sweet berry and grape notes dominate the inhale, with a sugary exhale that lingers on the palate. 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, Cluster Bomb 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 Cluster Bomb?

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 Cluster Bomb from Seennabis?

When you purchase Cluster Bomb 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.