From the lab panel — 19% THC, <2% CBD. From Canadian grower reports — 500g/m2 yield, fruity/sweet dominant in cured flower. easy grow.

Smell-first: cut a ripe grapefruit in half over a warm bowl and you're most of the way to understanding what fills the tent at week seven. Sweet Deep Grapefruit is a feminized indica from Coastal Genetics built around a proprietary coastal cross, and it performs consistently without demanding much from the grower — the easy difficulty rating isn't marketing, it's accurate. Flowering wraps at 8–9 weeks, indoor runs regularly hit 500 g/m², and the 19% THC sits in a range that produces noticeable body sedation without flooring casual users. The flavor profile stays true through cure: fruity and sweet with genuine depth rather than the flat sweetness you sometimes get from rushed genetics.

Plants respond well to both indoor and outdoor setups, which makes this a reasonable choice for Canadian growers running a short outdoor season in BC or Ontario — finish timing lines up with a late-September pull before the first frost risk climbs.

Best suited to newer growers who want a forgiving plant and a flavour-forward result without a steep learning curve.

Genetics & Lineage

Sweet Deep Grapefruit traces its genetics to Proprietary cross (Coastal Genetics). 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 Coastal Genetics, 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 19%, this offers a well-balanced experience suitable for most users with some cannabis familiarity.

THC Level & Potency

Sweet Deep Grapefruit delivers THC levels of 19%, 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 Sweet Deep Grapefruit

Sweet Deep Grapefruit is rated as easy difficulty, making it an excellent choice for first-time growers. The plants are resilient, forgiving of common mistakes like overwatering or inconsistent feeding schedules.

Indoor Growing: Expect a flowering time of 8-9 weeks with yields of 500g/m2. Plants typically reach 150-220cm 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

Sweet Deep Grapefruit features a fruity, sweet 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, Sweet Deep Grapefruit 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 Sweet Deep Grapefruit?

This strain is ideal for beginner growers looking for a reliable, low-maintenance plant that delivers consistent results without advanced techniques. If you're looking for evening relaxation and deep stress relief, this is your strain.

Why Buy Sweet Deep Grapefruit from Seennabis?

When you purchase Sweet Deep Grapefruit through Seennabis, you are buying directly from Coastal Genetics — California coastal craft breeder. Every order includes verified genetics, discreet shipping, and responsive seller support.