Jelly Donutz Feminized Seeds · Humboldt Seed Company · Dessert Genetics with High THC

Jelly Donutz Feminized Seeds from Humboldt Seed Company are your ticket to cultivating a top-shelf dessert strain renowned for its exceptional potency, stunning visual appeal, and surprisingly straightforward growth. This is the genetics you trust when you want a harvest that impresses on every level—taste, effect, and yield.

Ever planted seeds hoping for a heavy-hitting, flavourful harvest, only to end up with plants that are finicky, low-yielding, or just plain weak? It's the ultimate grower's letdown: investing time and care into a crop that doesn't deliver the fire you were promised. You're left with mediocre buds that lack the punch and complexity you crave, making all that effort feel wasted.

That disappointment stings, especially when you've followed all the advice. You're stuck with a harvest that's more filler than killer, lacking the dense trichome coverage and intense aromas that make growing so rewarding. It's not just about the yield; it's about the quality and the experience falling short of your expectations.

Jelly Donutz is the direct answer to that frustration. Bred from the legendary White Runtz and the terpene-rich Hella Jelly, this strain brings genetic stability and proven performance. It's designed for growers who want reliability without sacrificing elite results. You get a plant that builds strong, vertical structures, resists common moulds, and packs its buds with early-clouding trichomes for a potent, long-lasting high that's both cerebral and physical.

Why This Strain is Actually Worth It for You

Jelly Donutz stands out because it combines the best of both worlds: the bag appeal and potency of a modern hype strain with the resilience and grower-friendly nature of proven genetics. While many "dessert" strains can be temperamental or low-yielding, this one is built for success. It's a heavy feeder that responds well to attention, rewarding you with impressive yields of dense, candy-coated buds. The high, reported by testers to be in the 30-35% THC range, comes on strong and energetic—perfect for social sessions or creative bursts—yet maintains a smooth balance without paranoia. For the effort you put in, the payoff in both quantity and quality is exceptional.

Key Features and Tangible Benefits

• Elite Genetics (White Runtz x Hella Jelly): You get a stable hybrid that inherits frosty bag appeal from Runtz and intense sweet terpenes from Hella Jelly, guaranteeing a standout final product.
• High THC Potential (30-35%): Experience a powerful, long-lasting effect that is both cerebrally uplifting and physically relaxing, ideal for evening enjoyment after a long day.
• Resilient & Mould Resistant: Grow with more confidence, as this plant shows good resistance to grey mould (botrytis) and powdery mildew, reducing crop risks.
• Excellent for Extracts: Its high resin gland density means you can produce superior dry sift, bubble hash, and other concentrates, maximizing the value of your harvest.
• Manageable Height & Structure: With a final indoor height of 1.20–1.50 m (3.94–4.92 ft), it fits well in most spaces and develops strong branches that often support buds without staking.
• Fast Flowering Time: With a flowering period of just 55-60 days, you can achieve a potent harvest faster than many other photoperiod varieties, allowing for more cycles per year.

Common Objections and Straight Answers

It's normal to have questions about a new strain. Here are the facts.

• You think "high-THC strains are always difficult to grow." In reality, Jelly Donutz is noted by growers for being vigorous and relatively easy to manage, tolerating a range of conditions well.
• You worry "the buds won't be dense enough." In reality, this strain is known for a significant "bulk up" phase in mid-flower, producing compact, rock-hard nugs that are a joy to trim.
• You're concerned "the flavour won't live up to the name." In reality, the terpene profile is a complex mix of diesel, vanilla, pepper, and sugary candy, delivering a genuinely sweet and gassy experience.
• You wonder "is the yield worth it?" In reality, with proper feeding and care, indoor yields can reach 500–600 g/m² (1.63–1.96 oz/ft²), making it a highly productive choice.

How to Grow It Safely and Effectively

To get the most from your Jelly Donutz seeds, follow this streamlined guide. For a strong start, consider using a rooting gel like Root It to ensure rapid germination and early root development.

1. Germination & Seedling: Germinate in a warm (22–25°C), humid environment. Once sprouted, provide mild light and avoid overwatering. A light, airy substrate is key.
2. Vegetative Growth: Maintain an 18/6 light cycle. This plant exhibits moderate stretch, so low-stress training (LST) is highly effective to open the canopy. It's a vigorous grower and can handle topping if desired.
3. Transition to Flower: Switch lights to 12/12. Expect a noticeable stretch in the first 2-3 weeks. Reduce humidity gradually to 40-50% to prevent mould as buds form.
4. Flowering & Ripening: This is a heavy feeder. Support its growth during weeks 3-6 of flower with a balanced nutrient regimen. Trichomes will turn cloudy early; wait for some amber for a more relaxing effect. A product like Brutal Bloom can be used during peak flowering to enhance bud density and resin production.
5. Harvest & Dry: Harvest when trichomes are mostly cloudy with some amber. Flush well for 7-10 days before chop. Dry slowly in a dark space at 16-20°C and 50-60% RH for optimal flavour preservation.

Frequently Asked Questions

Is Jelly Donutz suitable for beginner growers?

Yes, its resilience and mould resistance make it a forgiving choice for those still honing their skills, as long as basic parameters like pH and watering are managed.

How tall does it get outdoors?

Outdoors, Jelly Donutz can reach 1.80–2.20 m (5.91–7.22 ft) in optimal conditions, producing substantial yields per plant.

What's the best way to enhance the terpene profile?

Maintaining stable temperatures and lower humidity during late flowering helps preserve terpenes. Some growers also use terpene-boosting supplements in the final weeks.

When should I stop feeding before harvest?

Initiate a flush with plain, pH-balanced water for the last 7-10 days of flowering to ensure a clean, smooth final smoke.

Personal Experience of Pevgrow’s CEO (Alan)

I was genuinely impressed the first time I ran Jelly Donutz in our test room. You hear "30%+ THC" and expect a diva plant, but this one just gets to work. The structure is fantastic—strong, vertical stems that hold their weight without much support. The smell in late flower is this addictive mix of gas station and candy shop; it's unique. My tip? Don't harvest based solely on trichome cloudiness. They go milky white surprisingly early, around week 6. If you can, let it go the full 8-8.5 weeks. The extra time adds a heavier, more relaxing body effect to that initial cerebral rush, which I personally prefer. It's a heavy feeder, so don't be shy with nutrients in mid-flower, but ease off in the final weeks. The yield and quality make it a staple in my personal garden now.

Technical Specifications

• Breeder / Brand: Humboldt Seed Company
• Type: Feminized Photoperiod
• Genetic Dominance: Hybrid (40% Indica / 60% Sativa)
• Genetics: White Runtz x Hella Jelly (formerly Jelly Rancher)
• Indoor Flowering Time: 55-60 days
• Outdoor Harvest (Northern Hemisphere): Late September to early October
• Indoor Yield: Approx. 500-600 g/m² (1.63-1.96 oz/ft²)
• Outdoor Yield: Approx. 600-800 g/plant (1.32-1.76 lb/plant)
• Indoor Height: 1.20-1.50 m (3.94-4.92 ft)
• Outdoor Height: 1.80-2.20 m (5.91-7.22 ft)
• Difficulty Level: Medium
• Recommended Climate: Temperate to Mediterranean; good heat tolerance
• Resistance: Good resistance to grey mould (botrytis) and powdery mildew
• Training: Excellent response to LST (Low-Stress Training); suitable for SCROG; can be topped.
• Recommended Final Pot Size: 15-20 L (3.96-5.28 gal) for photoperiod growth.
• Aroma During Grow: High (recommended use of carbon filter)
• THC Content: Approx. 30-35%
• CBD Content: Low (
• Dominant Terpenes: Myrcene, Limonene, Caryophyllene
• Flavour Profile: Sweet, gassy, diesel, with notes of vanilla, pepper, and candy.
• Effect: Energetic, cerebral onset evolving into a balanced, relaxing body high. Suitable for afternoon or evening use.