The specs in one line: 17-22% THC, <1% CBD, 8-10 weeks flowering, 400-550 g/m² reported. Best indoor or outdoor. moderate grow.

Smell-first: crack a cured bud and you get a clean mix of damp earth and understated sweetness — nothing loud, nothing artificial, just an honest nose that carries into the smoke. Astro Fizz Feminized sits at 17–22% THC with less than 1% CBD, so the effect leans psychoactive without much counterbalance. Yields land in the 400–550 g/m² range under decent light, and the flowering window runs 8–10 weeks — neither the fastest nor the slowest on the shelf. It handles both indoor and outdoor setups, though growers at a moderate skill level will get the most out of it; beginners who've done one or two runs should manage fine, but total newcomers may want something more forgiving first.

Good pick for the intermediate grower who wants a straightforward earthy cultivar without chasing exotic terpene profiles or pushing the difficulty ceiling.

Genetics & Lineage

Astro Fizz traces its genetics to Astro Fizz Feminized (Seed Supreme genetics). 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 Seed Supreme, each seed is selected for genetic stability, terpene expression, and vigor.

Effects & Experience

Users report primarily euphoric and relaxed 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 22%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Astro Fizz delivers THC levels of 17-22%, 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 Astro Fizz

Astro Fizz 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 8-10 weeks with yields of 400-550 g/m². Plants typically reach 80-150 cm 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

Astro Fizz features a earthy, sweet terpene profile that develops complexity throughout the flowering cycle. A smooth, candy-like sweetness defines the flavor, with subtle complexity on the exhale. 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, Astro Fizz 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 Astro Fizz?

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 Astro Fizz from Seennabis?

When you purchase Astro Fizz through Seennabis, you are buying directly from Seed Supreme — Ranked best for overall value with a massive selection and varied genetics from top breeders worldwide. Every order includes verified genetics, discreet shipping, and responsive seller support. Seed Supreme has completed over 94 sales.

Astro Fizz vs SeedSupreme

Astro Fizz is one of the most popular strains available on SeedSupreme (Seed Supreme), a global cannabis seed marketplace known for competitive pricing, high-quality genetics, and discreet US shipping. With a massive catalog spanning feminized, autoflower, regular, and CBD strains from breeders worldwide, SeedSupreme has established itself as a go-to destination for reliable cannabis seeds with earthy and sweet terpene profiles.

While SeedSupreme offers this strain directly through seedsupreme.com, Seennabis provides a marketplace experience with deeper strain intelligence. If you've been searching for “SeedSupreme Astro Fizz” or “Astro Fizz Seed Supreme review,” you've found the most detailed breakdown available — with growing guides, effect profiles, and cross-breeder comparisons that SeedSupreme product pages don't provide.

Why Buy SeedSupreme Seeds on Seennabis?

SeedSupreme is a trusted global seed marketplace — and Seennabis adds the full picture:

• Cross-marketplace comparison: Compare Astro Fizz from Seed Supreme against the same strain from ILGM, Seedsman, NASC, and other seed banks — all on one page.
• Deeper grow intelligence: Detailed cultivation guides, grower-match tools, and effect breakdowns that go beyond SeedSupreme's standard product listings.
• Broader discovery: Access 4,100+ strains from 15+ verified seed banks worldwide alongside SeedSupreme's catalog.
• Verified reviews: Real grower reports with yield data and cultivation tips from the Seennabis community.