Sweet Diesel Feminized Seeds – Dr Underground's Balanced Sativa-Indica Hybrid for High Resin & Fruity Flavor

Sweet Diesel by Dr Underground is a feminized cannabis strain that strikes the perfect balance between sativa and indica, delivering high resin production, a sweet and fruity flavor, and a potent, relaxing high that won’t lock you to the couch. This limited-edition hybrid is your ticket to a premium grow with consistent results and standout aroma.

Are You Tired of Bland, Unreliable Strains?

Too many gardeners end up with weak plants that barely flower, smell like hay, and deliver underwhelming highs. You invest time, space, and energy—only to harvest airy buds and miss the full-body buzz you’re after.

What If Your Last Harvest Was a Total Letdown?

Imagine waiting weeks just to find your buds lack flavor, potency, or density. You’re stuck with a harvest that’s more frustrating than fulfilling—wasting nutrients, electricity, and your precious grow space. The worst part? Knowing you could’ve had a strain that actually delivers on its promises.

Sweet Diesel Is the Grower’s Redemption

Here’s your comeback: Sweet Diesel combines the genetics of Sweet and Original Diesel to give you a robust, high-yielding plant with a flavor profile that’s sweet, fruity, and unforgettable. It’s not just another strain—it’s a statement. With dense, resin-coated flowers and a balanced high, it turns average grows into award-worthy harvests.

Technical specifications

• Breeder / Brand: Dr Underground
• Type: Feminized
• Dominance: Balanced Sativa-Indica
• Genetics: Sweet × Original Diesel
• Indoor flowering period: 8–9 weeks
• Indoor yield: 450–500 g/m² (15.87–17.64 oz/ft²)
• Outdoor yield: 500–800 g/plant (17.64–28.22 oz/plant)
• Outdoor height: Medium
• Difficulty: Low
• Structure and vigour: Compact branching, moderate stretch
• Ideal climate: Temperate, Mediterranean
• Resistance: High resistance to fungi and pests
• Training: Suitable for LST and SCROG
• Recommended pot: 11–20 L depending on space
• Light: 18/6 (vegetative), 12/12 (flowering)
• Temperature: 22–26 °C (vegetative), 20–25 °C (flowering)
• Humidity: 60–70% (seedling), 50–60% (vegetative), 40–50% (flowering)
• pH: 6.0–6.5 (soil), 5.8–6.2 (coco/hydro)
• Smell in grow: Medium to high (carbon filter recommended)
• THC: Approx. 18–22%
• CBD: Approx. 1%
• Aromatic profile: Limonene, myrcene, pinene
• Flavour: Sweet, fruity, citrus, diesel undertones
• Effect: Balanced cerebral and body high, uplifting yet relaxing

Why Sweet Diesel Outperforms Basic Strains

Most strains force you to choose: high yield or great flavor. Sweet Diesel gives you both—without the fuss. It’s been rigorously tested in hydroponic systems and delivers 99.9% feminized seeds, so you’re not wasting time on males or weak phenotypes.

• High resin production means more trichomes and better potency
• Balanced sativa-indica genetics deliver a functional high, perfect for daytime or evening
• Medium height makes it ideal for indoor tents or discreet outdoor grows
• Fast 8–9 week flowering cycle gets you from seed to harvest quickly
• Resistant to mold and pests, so you spend less time worrying and more time growing
• Thrives in both soil and coco, adapting to your preferred setup

Real benefits you’ll actually notice

You’ll taste the difference before you even feel it. The sweet, fruity aroma fills the room during drying, and the flavor profile evolves into something complex—like apple punch with a hint of cinnamon after curing. But it’s not just about taste: the high is smooth, creative, and meditative, with enough body relaxation to unwind without knocking you out. Whether you’re growing for personal use or impressing connoisseurs, Sweet Diesel delivers a premium experience from start to finish.

Step-by-step growing guide

1. Germinate seeds in a moist paper towel at 22–25 °C until the taproot appears (~24–72 hours)
2. Transplant carefully into a starter pot with well-aerated soil or coco
3. Keep humidity at 60–70% and provide 18 hours of light daily during vegetative stage
4. Switch to 12/12 light cycle to trigger flowering after 3–6 weeks of growth
5. Monitor pH and EC regularly—use HESI pH Down Flowering to maintain optimal levels
6. Support branches with LST or SCROG as the plant develops dense colas
7. Flush with plain water 7–10 days before harvest to improve flavor and smoothness

Frequently Asked Questions

Is Sweet Diesel good for beginners?

Yes, its low difficulty and high resistance make it perfect for novice growers.

How much yield can I expect outdoors?

You can harvest 500–800 g/plant in temperate or Mediterranean climates with proper care.

Does it smell strong during flowering?

Yes, it has a medium to high odor—use a carbon filter like Seedfinder to stay discreet.

Can I grow Sweet Diesel in a small indoor tent?

Absolutely. Its medium height and compact structure make it ideal for spaces like Complete Grotek Outdoor Kit adapted indoors.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Sweet Diesel in my 1.5 m² tent under a 600W LED, and from week one, it stood out. The stretch was minimal, the branching was even, and by week three of flowering, the smell was already turning heads. I used LST to maximize light exposure and paired it with Big Bud Coconut during peak bloom—resulting in dense, resin-heavy buds. After a 10-day flush and a 3-week cure, the flavor was incredible: sweet citrus with a smooth diesel finish. The high? Balanced, creative, and relaxing—perfect for unwinding after work without zoning out. If you want a strain that performs like a champion but grows like a rookie’s dream, this is it.