Mr Nice Seedbank Seeds: Classic Regular Strains

Mr Nice Seedbank Seeds: Classic Regular Strains and How to Choose the Right One

Updated: January 2026 | Mr Nice Seedbank Seeds: Classic Regular Strains Guide | Cannapot
Author: Cannapot Grow Team | Reading time: approximately fourteen minutes

Some breeders focus on constant new drops. Mr Nice Seedbank is known for something different: classic cannabis genetics, preserved and shared through regular (non-feminized) seeds. The line is closely tied to Shantibaba (Scott Blakey) and Howard Marks (Mr Nice), with multiple mentions of recognition at the High Times Cannabis Cup, and a reputation built around long-running staples such as Black Widow (the original White Widow), Super Silver Haze, NL5, Nordle, and White Shark.

If you are browsing this breeder collection, the fastest way to pick the right pack is to filter by three things that actually change the experience: seed format (regular), flowering time, and scent profile. From there, you can narrow by genetic lean (mostly indica vs mostly sativa) and THC percentage.

Note: This collection is regular photoperiod seeds. Regular seeds can produce male and female plants. This matters for planning and expectations, but this guide stays focused on selection and product comparison rather than cultivation instructions.

What makes Mr Nice Seedbank different
Origin and focus

• The breeder is described with United Kingdom origins and a focus on classic cannabis genetics.

“Known for” strains that anchor the lineup

• Black Widow is positioned as the original White Widow and is shown with 25% THC and an 8–10 week flowering window.

• Super Silver Haze and NL5 appear as core reference points for old-school haze and classic structure.

• Nordle is referenced as a high-yield option.

• White Shark is referenced as a notable classic.

These references help set expectations: you are looking at a breeder collection built around established strain families (Haze, Skunk, NL, Afghan) rather than novelty hybrids.

How to choose a Mr Nice strain in 5 practical filters

Start with your time: fast, medium, or long
Flowering time is one of the clearest decision points in this catalog.

Fast finish (about 6–8 weeks)

• Shark Shock (6–7 weeks)

• Shit (6–7 weeks)

• Early Queen (6–8 weeks)

• Critical Skunk (6–8 weeks)

• Ortega (6–8 weeks)

Medium window (about 8–11 weeks)

• Black Widow (8–10 weeks)

• Mango Haze (8–10 weeks)

• NL5 × Afghan (7–9 weeks)

• U2 (9–11 weeks)

• Afghan Haze (10 weeks)

Long finish (about 12+ weeks)

• The Cure (9–12 weeks sits on the edge of long)

• Neville’s Haze Mango (10–14 weeks)

• The Doors (16 weeks)

• Neville’s Haze (14–16 weeks)

If you want an easier planning window, stay in the fast-to-medium range. If you specifically want long, classic haze-leaning projects, the catalog includes true long-duration options.

Pick your “direction”: mostly indica, mostly sativa, or balanced
Mostly Indica / pure Indica examples

• Critical Mass (mostly indica)

• Nordle (mostly indica)

• Ortega (pure indica)

• Shark Shock (mostly indica)

Mostly Sativa examples

• Afghan Haze (mostly sativa)

• Angels Breathe (mostly sativa)

• U2 (mostly sativa)

• Skunk Haze (mostly sativa)

• The Doors (mostly sativa)

• NL5 × Haze (mostly sativa)

Balanced / hybrid-style examples

• Black Widow is shown as a Brazilian sativa × South Indian indica cross.

• Dreamtime is described as a multi-line hybrid (Skunk/Northern Lights/Afghan/Haze).

This filter is useful because it also correlates with the catalog’s aroma families: haze/incense profiles tend to cluster in mostly-sativa options, while hash/earth/sweet often appears more in indica-leaning picks.

Choose your aroma family (this is where Mr Nice shines)
Sweet / dessert / hash-like

• The Cure: sweet Afghan hashish, incense, cheese

• Ortega: sweet berries + earthy notes

• Critical Mass: strong, earthy, sweet

Fruit-forward

• Mango Haze: ripe mango / fruity

• U2: uniquely fruity

• Pink Floyd: fruit-forward descriptors on-page (paired with its genetic framing)

Skunk / classic pungent

• Skunk Haze: stinky Skunk + Haze profile

• Shit: fruity with Skunk/Afghani roots

• Shark Shock: earthy + fruity + skunk

Incense / haze / spice

• Early Haze: sweet incense

• The Doors: pine, spicy, earthy

• Neville’s Haze: tropical/incense notes with a very long finish

• The Stones: intense incense with a touch of skunk

If you know what you like in aroma, you can usually find 2–4 strong candidates quickly.

Decide how important THC % is for you

• Black Widow – 25% THC

• Neville’s Haze – 25% THC

• Ortega – 25% THC

• G13 Widow – 24% THC

• Mango Haze – 24% THC

If you want potency and shorter flowering, Ortega (6–8 weeks, 25% THC) stands out on paper. If you want long-form haze genetics with high THC listed, Neville’s Haze (14–16 weeks, 25% THC) is the opposite end of the spectrum.

Match the strain to your environment (indoor vs outdoor vs greenhouse)
Several pages explicitly suggest where a strain fits.

Outdoor / greenhouse-friendly

• Devil is positioned for outdoor or greenhouse, finishing by October.

• Early Queen is framed as a fast outdoor option (finishing by September).

• Nordle is described as thriving in greenhouse contexts.

• Walkabout is built as an outdoor mix, including Thai/Haze/Indian/Early Skunks/Mexicans/New Guinea genetics, with notes that it suits wet temperate zones.

Indoor-friendly

• G13 Haze is described as compact and manageable indoors.

• Shark Shock is positioned as indoor-friendly with a fast finish.

• NL5 × Haze is framed as an easy indoor option.

Top picks by goal (quick recommendations)

Beginner-friendly

• Dreamtime — described as easy for beginners; 9 weeks; classic multi-line hybrid background.

• Shit — 6–7 weeks; positioned as a safe choice and beginner-friendly.

• U2 — described as easy; resistant to mold/disease; tolerant of feeding errors; 9–11 weeks.

• Critical Mass — 7–8 weeks; mold-resistant; described as easy for beginners.

• Early Haze — 8–10 weeks; mold-resistant positioning; outdoor-leaning.

Indoor picks

• Black Widow — 8–10 weeks; 25% THC; sweet/pine/spice aroma descriptors.

• G13 Haze — 9–10 weeks; sweet citrus/pine aroma.

• Shark Shock — 6–7 weeks; resinous, classic profile; award mentions on-page.

• NL5 × Haze — 9–11 weeks; citrus/pine/earthy descriptors.

• Mango Widow — positioned as indoor-friendly but needs space; high THC listed on-page.

Outdoor / greenhouse

• Devil — outdoor/greenhouse positioning; finish by October.

• Early Queen — fast outdoor framing; finish by September.

• Nordle — greenhouse-friendly; sweet/spicy aroma descriptors.

• Walkabout — outdoor mix; wet temperate zone suitability.

• U2 — indoor/outdoor flexibility with mold resistance.

Fast options (when time is the priority)

• Shark Shock — 6–7 weeks

• Shit — 6–7 weeks

• Ortega — 6–8 weeks

• Early Queen — 6–8 weeks

• Critical Skunk — 6–8 weeks

High-THC picks

• Black Widow — 25%

• Neville’s Haze — 25% (long flowering)

• Ortega — 25% (fast)

• G13 Widow — 24%

• Mango Haze — 24%

Mr Nice comparison table (quick scan)

 

Strain	Seed type	Genetics lean	Lineage	Flowering time	THC	Aroma notes
Black Widow	Regular	Balanced	Brazilian Sativa × South Indian Indica	8 – 10 weeks	25%	sweet, pine, fruity, spicy
Dreamtime	Regular	Hybrid	Skunk × Northern Lights × Afghan × Haze	9 weeks	20%	sweet, spicy, earthy, citrus
Critical Mass	Regular	Mostly Indica	Afghan × Skunk	7 – 8 weeks	20%	strong, earthy, sweet
Early kunk Haze	Regular	Mostly Sativa	Early Queen × Afghan Haze	8 – 10 weeks	21%	sweet incense
Mango Haze	Regular	Hybrid	Haze × Skunk #1 × Northern Lights	8 – 10 weeks	24%	ripe mango, fruity
NL5 × Afghan	Regular	Mostly Indica	Northern Light #5 × Afghan	7 – 9 weeks	22%	hashish / classic notes
Ortega	Regular	Pure Indica	NL #1 × NL #5	6 - 8 weeks	25%	sweet berries, earthy
Shark Shock	Regular	Mostly Indica	White Widow × Skunk #1	6 – 7 weeks	20%	earthy, fruity, skunk
The Doors	Regular	Mostly Sativa	Afghani × Haze	16 weeks	20%	pine, spicy, earthy
Nevilles Haze	Regular	Sativa	Northern Lights #5 × HazeA × HazeC	14 –16 weeks	25%	uniquely, tropical, strong incense

 

FAQs
Q: Are these feminized or autoflower seeds?
A: This breeder collection is regular seeds. No feminized or autoflower options are presented in this catalog.

Q: What is the difference between regular and feminized seeds?
A: Regular seeds are non-feminized. That means they can produce male and female plants, which can be important for collectors, breeders, and anyone who specifically wants classic regular lines. (This guide stays focused on selection and product comparison.)

Q: Which strains finish the fastest?
A: Several options list 6–8 weeks, including Shark Shock, Shit, Ortega, Early Queen, and Critical Skunk.

Q: Which strains have the highest THC listed?
A: The highest listed values include 25% THC on Black Widow, Neville’s Haze, and Ortega. G13 Widow and Mango Haze list 24% THC.

Q: Which strains are easiest if I want something lower-maintenance?
A: Use “easy to grow”, including U2, Critical Mass, Shit, Dreamtime, and Afghan Haze (with “beginner-friendly” positioning). If you also want extra resilience notes, U2 includes strong statements around mold/disease resistance and tolerance to feeding mistakes.

Explore the full Mr Nice Seedbank collection
If you want a single place to compare everything at a glance, start with the breeder collection page and use the filters you care about most (time, aroma family, genetic lean, and THC %): Mr Nice Seedbank

From there, open any strain that matches your priorities and confirm the specifics (flowering time, lineage, and aroma notes) before choosing a pack.