Zourgum - Zours X Original Bubblegum Feminized TH Seeds · Limited Edition Hybrid with Sour Candy Flavor & High Yield

Zourgum by TH Seeds is a limited-edition feminized hybrid that fuses the legendary Zours with Original Bubblegum, delivering explosive sour candy flavors, vibrant black-and-pink buds, and yields up to 700 g/m² indoors — a true masterpiece for connoisseurs and growers who want beauty, flavor, and power in one plant.

Are you tired of growing strains that look great but underdeliver on flavor or yield?

It’s frustrating when your plants take up space and time but don’t reward you with that 'wow' factor — weak aromas, bland taste, or mediocre harvests that don’t justify the effort.

Even worse? Watching your buds get hit by mold or pests after weeks of care, especially if you're pushing for those dense, resinous colas.

Zourgum isn’t just another strain — it’s your shortcut to a show-stopping harvest. With genetics from two California legends, this feminized hybrid grows robust, resists mold and pests, and explodes in flower with colors and flavors that turn heads. Whether you're growing for personal use or pride, Zourgum delivers where it counts: in the jar, on the nose, and in the high.

What to expect from Zourgum during the first few weeks

Don’t expect fireworks right away — Zourgum takes her time in the vegetative stage, growing steadily but slowly at first. This is normal. She’s building a strong root system and structure, saving her energy for the big show. Once flowering kicks in, she stretches dramatically — up to 120–160 cm (3.9–5.2 ft) indoors — and starts developing her signature colors: deep green fading into jet black with shocking pink streaks deep inside the buds. The trichome coverage goes from moderate to insane in just a few weeks, turning each bud into a glittering, resin-drenched masterpiece.

Common mistakes and how to avoid or fix them

• Skipping early topping — Zourgum responds well to topping once or twice during veg to boost lateral growth and yield.
• Overwatering in early stages — let the top layer dry between waterings to avoid root stress.
• Ignoring humidity in flowering — keep RH at 40–50% to prevent mold in dense buds.
• Pruning too aggressively — avoid heavy defoliation, especially in flowering; light LST is better.
• Harvesting too early — wait for milky-to-amber trichomes for a balanced, relaxing high.

How to fine-tune your grow for maximum flavor and yield

1. Start with a stable environment: 22–26 °C (72–79 °F) and 50–60% RH during veg.
2. Use 18–20 h light cycle if growing indoors to maximize growth.
3. Top once or twice during early veg to create multiple colas.
4. Switch to flowering after 4–6 weeks of veg for optimal size.
5. Use organic soil or a well-aerated coco mix to enhance flavor and color development.
6. Boost flowering with a quality bloom fertilizer like Try-Pack Kit Fertilizers BioBizz Bio 100% for denser buds.
7. Monitor trichomes weekly in the last two weeks to time your harvest perfectly.

Advantages and benefits of growing Zourgum

• Massive yields of 600–700 g/m² (21.1–24.7 oz/ft²) indoors under optimal conditions.
• Striking visual appeal with black and pink-colored buds that stand out in any collection.
• Sour candy and bubblegum flavor that lingers on the palate and impresses every time.
• Strong resistance to pests and mold, making it reliable even in less-than-perfect environments.
• Balanced 60% sativa / 40% indica effect — uplifting at first, then deeply relaxing without heavy sedation.
• Perfect for evening use, creative sessions, or unwinding after a long day.
• Thrives with simple training techniques like topping and LST for maximum canopy control.

Technical specifications

• Breeder / Brand: TH Seeds
• Type: Feminized
• Genetics: Zours × Original Bubblegum
• Dominance: 60% Sativa – 40% Indica
• Indoor flowering time: 60–65 days
• Height indoors: 120–160 cm (3.9–5.2 ft)
• Indoor yield: 600–700 g/m² (21.1–24.7 oz/ft²)
• Outdoor yield: approx. 600 g/plant (21.1 oz/plant)
• Difficulty: Intermediate
• Structure: Robust, tall stretch in flowering, dense branching
• Resistance: High resistance to pests and mold
• Training: Suitable for topping, LST, SCROG
• Recommended pot: 11–20 L depending on space
• Light: 18/6 in veg, 12/12 in flowering
• Temperature: 22–26 °C (72–79 °F) in veg, 20–25 °C (68–77 °F) in flower
• Humidity: 50–60% in veg, 40–50% in flower
• pH: 6.0–6.5 (soil), 5.8–6.2 (coco/hydro)
• Smell in grow: Medium to high — consider a carbon filter in enclosed spaces
• THC: approx. Moderate to high (exact % not available)
• CBD: Not specified
• Aromatic profile: Limonene, myrcene, caryophyllene
• Flavor: Sour candy, sweet bubblegum, tangy strawberry
• Effect: Euphoric onset, followed by deep body relaxation, anti-stress, mood boost

How to grow Zourgum: expert tips by phase

Get the most out of your Zourgum grow with this concise, phase-by-phase guide based on genetics, structure, and performance.

Quick overview

Feminized photoperiod strain from TH Seeds, 60–65 days flowering, intermediate difficulty, ideal for indoor or greenhouse in mild to warm climates.

• Maximize yield with topping and LST during veg
• Use Light Mix Peat Free 50 lt. Bio Bizz for optimal root development and drainage
• Maintain stable temps and avoid humidity spikes in flower
• Support heavy colas with stakes if growing outdoors

Safe start

Begin strong with healthy germination and early root support.

• Germinate seeds at 22–25 °C with high humidity
• Transplant when radicle reaches ~1 cm (0.4 in)
• Use a light, airy starter mix to prevent damping off
• Boost root development with SeedBooster Plus germination stimulator

Directed growth

Shape your plant early for maximum yield and control.

• Apply 18/6 light cycle to promote strong vegetative growth
• Top once or twice to create 4–6 main colas
• Use LST to spread the canopy and improve light penetration
• Water moderately — let topsoil dry between irrigations
• Feed with mild nutrients to avoid nutrient burn

Flowering by stages

Optimize each phase for resin, density, and flavor.

• Switch to 12/12 light to trigger flowering after 4–6 weeks of veg
• Expect heavy stretch in pre-flower — secure branches early
• Reduce RH to 40–50% to protect dense buds
• Boost PK in mid-flower with Monster PK 58/60 - Cannotecnia
• Flush 7–10 days before harvest for smoother smoke

Frequently Asked Questions

Is Zourgum a sativa or indica?

Zourgum is a balanced hybrid with 60% sativa and 40% indica genetics. It starts with a euphoric, uplifting head rush typical of sativas, then settles into a deep, relaxing body high from its indica side — perfect for evening use without couch-lock.

How long does Zourgum take to flower?

Indoors, Zourgum flowers in 60 to 65 days. Outdoors, harvest is typically ready by late October in the northern hemisphere. Her fast finish makes her ideal for growers who want quality without a long wait.

What makes Zourgum visually unique?

Zourgum develops rare black and pink-colored buds during late flowering — a result of high anthocyanin expression. These vibrant hues, combined with a thick layer of trichomes, make her one of the most photogenic strains available.

Is Zourgum easy to grow?

Zourgum is intermediate in difficulty. Her slow start requires patience, but once flowering begins, she becomes resilient and low-maintenance. She’s resistant to pests and mold, making her a solid choice for growers with some experience.

What conditions does Zourgum prefer?

She thrives in stable indoor environments or greenhouses with temperatures between 22–26 °C (72–79 °F) during veg and 20–25 °C (68–77 °F) in flower. Keep humidity at 50–60% in veg and drop to 40–50% in flower to prevent mold in her dense buds.

Personal Experience of Pevgrow’s CEO (Alan)

I grew Zourgum last season, and honestly, I underestimated her at first. She started slow — almost too calm — so I almost thought I’d picked a dud. But week 6 changed everything. She stretched like she owned the tent, and by week 3 of flower, those pink-and-black buds started showing up. I’ve never seen anything like it. I used topping once and light LST, and with BioBizz’s Try-Pack Kit, the buds came out dense, sticky, and smelled like a candy store explosion. The high? Perfect balance — creative at first, then deeply relaxing. I’d grow her again in a heartbeat. My only tip: be patient in veg. The magic happens in flower.