Sub Zero Strain Review: The Oreoz x Super Boof Cross That Broke 30% THC

The Sub Zero strain is a frosty, dessert-and-fuel hybrid commonly listed as Oreoz x Super Boof. It earned its name from a nose that people describe as frozen gasoline over vanilla cream.

Shop the parents: we don’t carry Sub Zero, but its Super Boof parent is in stock: Super Boof feminized from Pure XX (on sale), Super Boof feminized from Barney’s Farm, and a rooted Super Boof clone.

I’m James Bean, founder of Seeds Here Now. The first time I opened a jar of Sub Zero at a Michigan trade show, the whole table went quiet. This review covers what buyers want to know: lineage, aroma, appearance, reported potency and how Sub Zero compares to its relatives.

Seeds Here Now sells authentic breeder packs to adults 21+. We do not provide growing instructions, and nothing here is a medical claim.

Sub Zero Strain at a Glance

Lab numbers vary by sample and source, so treat potency figures as reported ranges, not guarantees.

The Genetics Behind the Sub Zero Strain

Sub Zero’s family tree is stacked on both sides.

Oreoz

Oreoz is Cookies and Cream x Secret Weapon. It is known for deep cookie sweetness and high potency, and it gives Sub Zero its dessert side.

Super Boof

Super Boof is Black Cherry Punch x Tropicana Cookies. It brings bright fruit and citrus aromas, which lift Sub Zero’s profile above a plain cookie strain.

The selection that became Sub Zero is known for heavy trichome coverage, chunky buds with purple hues and an aroma that sits between dessert and fuel.

What Makes the Sub Zero Strain Special?

Every so often a strain comes along that makes a room full of jaded buyers stop and ask what they are looking at. The Sub Zero strain is one of those. Its reputation rests on three things at once: a nose that is genuinely unusual, a coat of resin that looks like frost, and a family tree built from two of the most talked-about lines of the last decade.

Plenty of modern hybrids are sweet, and plenty are gassy. What sets Sub Zero apart is how the two sit together. The dessert side never smothers the fuel, and the fuel never turns harsh enough to bury the cream. That balance is hard to breed for, which is why the Sub Zero strain gets passed around trade show tables and talked about long after the jar is closed.

It also arrived at the right moment. Buyers had spent years on cookie and cake genetics and were starting to look for the old-school gas they remembered. Sub Zero offered both in one line, and it found an audience quickly.

Appearance: Why It Is Called Sub Zero

Well-grown Sub Zero flower looks iced over. Trichome coverage is thick enough that the buds can read as white from a distance, with lime and purple tones underneath and orange pistils.

The buds are typically dense and chunky, inherited from the Oreoz side, which is a big part of the Sub Zero strain’s bag appeal.

Sub Zero Aroma and Flavor

Open a jar and the first note is cold, sharp gas. Behind it comes sweet vanilla cream and a twist of citrus peel. On the palate, people describe cookie cream, citrus candy, diesel and a peppery finish.

• Myrcene: an earthy, musky base common in indica-leaning hybrids.
• Limonene: the citrus-peel brightness.
• Caryophyllene: peppery, spicy notes.
• Humulene: woody, hoppy depth.

Reported Effects and Potency

Sub Zero is a high-potency hybrid. Reviewers commonly describe an upbeat, sociable start from the Super Boof side, settling into heavier body relaxation from the Oreoz side. Experiences vary from person to person.

Because reported THC often lands in the mid to high 20s, people new to cannabis should be cautious with any strain in this range. This is a description of reported experiences, not a health claim.

Sub Zero vs. Similar Strains

If you like the dessert side of Sub Zero, read our Ice Cream Cake review; for heavier gas, see Zero Gravity.

Buying the Sub Zero Strain

Sub Zero is popular with buyers who follow modern dessert-gas genetics. When looking for packs, buy from accountable sources that list the breeder and lineage clearly, since popular names attract imitations.

Browse our feminized cannabis seeds for related dessert and gas lines from breeders we work with directly.

Meet the Parents: Oreoz

Oreoz is a cross of Cookies and Cream and Secret Weapon, and it became one of the signature dessert strains of its era. Buyers know it for chocolate-cookie and dough aromas with a gassy undertone, dark foliage and heavy resin. Our Oreoz strain review covers the line in depth.

In the Sub Zero strain, Oreoz is the source of the cookie-cream base, the chunky, dense bud structure and much of the dark coloring. It also appears to carry the deeper, heavier side of the aroma that shows up once the bright top notes fade.

Oreoz has become a popular parent in its own right, so buyers who enjoy Sub Zero often go looking for other Oreoz crosses. Comparing several of them side by side is a good way to learn which traits come from Oreoz and which come from the other parent.

Meet the Parents: Super Boof

Super Boof is a cross of Black Cherry Punch and Tropicana Cookies. It is known for a loud fruit profile, with cherry, citrus and tropical notes, and for colorful, resinous flowers. Read our Super Boof strain review for its full background.

In Sub Zero, Super Boof supplies the citrus-candy brightness that keeps the dessert notes from feeling heavy. Tropicana Cookies, one of its parents, is itself a cross of Girl Scout Cookies and Tangie, so the Sub Zero strain carries a thread of Tangie’s orange-peel character a few generations back.

Because both Oreoz and Tropicana Cookies come out of the Cookies family, Sub Zero is in many ways a Cookies-family strain that took two very different routes before the branches met again.

The Sub Zero Family Tree

Here is the lineage as it is commonly listed, going back two generations on each side. As with most modern hybrids, the deeper parentage is reported by breeders and the community rather than documented by a lab.

It explains why a strain smells the way it does and points you toward related lines worth adding to a collection.

The Dessert-Gas Trend in Modern Breeding

To see why the Sub Zero strain landed so well, it helps to look at the last fifteen years of breeding. Girl Scout Cookies set off a wave of dessert genetics in the early 2010s. Gelato, Wedding Cake, Ice Cream Cake and a long list of cookie and cake crosses followed, and sweet, creamy aromas came to dominate dispensary shelves.

By the late 2010s, many longtime buyers were missing the sharp fuel of Chemdog, OG Kush and Sour Diesel. Breeders responded with lines that put gas back into dessert genetics, and “dessert gas” became its own category.

Sub Zero is a textbook example. It keeps the cream and cookie of the dessert era and adds a cold, sharp fuel on top. For background on the dessert side, read our reviews of Gelato and Wedding Cake.

Sub Zero Terpene Chemistry in Detail

Terpenes are the aromatic compounds that give each strain its smell. Lab results on tested Sub Zero batches point to a consistent pattern, though exact numbers vary by sample.

The interesting thing is that no single terpene smells like frozen gasoline. The effect comes from the mix: limonene’s sharp brightness, caryophyllene’s peppery bite and humulene’s dry, hop-like note combine into an impression that people describe as icy. Total terpene content in well-made samples is often reported between about 1.5% and 3%.

For a primer on the science, PubChem’s entry on beta-caryophyllene is listed in the sources below.

Reading a Sub Zero Lab Label

If you see Sub Zero flower on a dispensary shelf where that is legal, the lab label tells you more than the THC number. Here is what reported results usually look like.

• THC: commonly reported between about 20% and 28%, with some samples reported higher.
• CBD: usually under 1%, so Sub Zero is a THC-dominant strain.
• Minor cannabinoids: trace CBG and CBC are often reported, usually well under 1% each.
• Total terpenes: often between about 1.5% and 3%, which is a better guide to aroma than THC.

Numbers vary by sample, by producer and by lab, so treat them as reported ranges, not guarantees. A high THC figure alone says little about how distinctive a strain is.

The Name: Sub Zero and the Frozen Strain Family

Breeders often name strains after how they look or smell, and frosty, cold-themed names are a tradition of their own. Sub Zero, Snowman, Zero Gravity and Ice Cream Cake all lean on the image of ice and frost, usually because of heavy resin or a cool, creamy aroma.

You may also see the strain listed as Sub Zero #12. Numbers like this usually mark the specific plant, or phenotype, a breeder picked out of a larger selection. A numbered cut is a sign that someone went through many plants and kept the one that best showed the traits they wanted.

If cold-themed genetics appeal to you, read our reviews of Snowman, Zero Gravity and Ice Cream Cake to compare them with the Sub Zero strain.

Why Resin-Heavy Strains Appeal to Hash Makers

Sub Zero’s frost is not just for photos. In places where it is legal, hashmakers prize strains with abundant, well-formed resin heads, and Sub Zero has built a following in solventless circles for that reason.

For buyers, that reputation adds to a strain’s story. Lines that are celebrated both as flower and as hash tend to hold their popularity longer, because they are valued by two communities instead of one. It is one reason the Sub Zero strain keeps showing up on lists of modern standouts.

Who Is the Sub Zero Strain For?

Sub Zero suits buyers who follow modern dessert-gas genetics and want a line with a clear, well-known family tree. It also suits anyone building a themed collection around Cookies-family strains, cold-named strains or strains with famous parents.

If you prefer old-school, pure gas, you may find Sub Zero sweeter than you expect. If you prefer pure dessert, the fuel may surprise you. Most people who seek it out want exactly that mix.

For more strain deep dives, try our Ricky Bobby strain review.

Tasting Notes on the Sub Zero Strain

Aroma changes as a sample is handled, and the Sub Zero strain is a good example of a layered nose. These notes come from my own time with jars at shows and from what customers and fellow buyers report.

Closed jar

The first impression is cold and sharp. Gas comes up first, with a faint sweetness behind it that is easy to miss if you only take a quick sniff.

Broken up

Once a bud is broken apart, the dessert side opens up: vanilla cream, cookie dough and a candied citrus note that comes from the Super Boof side. This is when most people realize the Sub Zero strain is more than a gas strain.

Lingering

After a few minutes the brighter notes fade and a peppery, woody base remains. That dry finish is part of why people describe the strain as icy rather than simply sweet.

Sub Zero Under the Loupe

Buyers who like to look closely at flower often keep a jeweler’s loupe on hand. Under magnification, the Sub Zero strain shows a dense carpet of trichomes, the tiny resin glands that hold most of a plant’s aroma compounds.

On good samples, the heads are large and packed tightly together, covering the calyxes and the small sugar leaves around them. Against the darker green and purple of the flower, that coat of resin reads as white, which is exactly where the frosty look and the name come from.

Bright orange pistils weave through the surface and add contrast. Together, the dark base color, the white frost and the orange hairs make Sub Zero one of the most photogenic strains of its generation.

Common Myths About the Sub Zero Strain

Myth: the cool impression comes from a mint terpene

Tested Sub Zero batches do not show a literal mint terpene at meaningful levels. The icy impression comes from the combination of limonene, caryophyllene and humulene, as described above.

Myth: higher THC means a better sample

THC is only one number on a lab label. Aroma depends on terpenes, and two samples with the same THC can smell very different. Buyers judge Sub Zero on its nose and appearance first.

Myth: darker purple means stronger

Purple color comes from pigments called anthocyanins and is mostly a matter of genetics and environment. It says nothing reliable about potency. In Sub Zero, the purple tones are inherited largely from the Oreoz side.

Myth: every pack labeled Sub Zero is the same

Popular names are reused and imitated. A pack is only as good as its source, so look for the breeder’s name and lineage on the label.

Sub Zero and Its Wider Family

Once you know the Sub Zero strain, its relatives are easy to spot on a menu or a seed list. Here is a quick guide to the broader family and what each branch shares with Sub Zero.

Building a small set around one family tree is one of the most rewarding ways to collect. It turns a shelf of packs into a story you can explain to anyone who asks.

Caring for a Seed Collection

Seeds are living things, and buyers who keep packs for years treat them with care. The basics are simple: keep packs sealed in their original packaging, store them somewhere cool, dark and dry, and avoid big swings in temperature or humidity.

Label everything with the breeder, the strain, the lineage and the date you bought it. Good records protect a collection’s value and make it easy to show someone exactly what you have. Our feminized cannabis seeds come in sealed breeder packaging, which is the best way to keep them.

How Judges Evaluate a Strain Like Sub Zero

I have judged cannabis competitions, and the way judges look at a sample is a useful lens for buyers too. With a strain like Sub Zero, the evaluation usually comes down to a few areas.

• Appearance: how well the resin coverage, color and bud structure show the strain’s known traits. For Sub Zero, that means heavy frost, dark tones and dense, chunky buds.
• Aroma: whether the nose is true to type and layered. A great Sub Zero sample should show both the cold gas and the cream, not just one of them.
• Consistency: whether the sample matches what the lineage promises. Oreoz and Super Boof traits should both be recognizable.
• Presentation: trim, handling and freshness, which affect how well the aroma comes through.

Judges are not asking whether a strain is strong. They are asking whether it is distinctive and true to type. By that standard, a well-made Sub Zero strain sample is a serious contender, because its combination of traits is so recognizable.

How to Grow Sub Zero

Good news: Sub Zero is a forgiving grow that rewards attention without punishing mistakes. Whether you’re a first-timer or a seasoned cultivator, this strain is worth the space in your garden.

Indoor Growing

Sub Zero performs exceptionally well indoors, where you can dial in the environment to bring out its best traits. Expect a flowering period of eight to ten weeks (roughly 57 to 63 days), with dense, resinous buds developing a thick trichome coating by week six.

• Lighting: Sub Zero responds well to both HID and LED setups. Aim for 800 to 1,000 µmol/m²/s PPFD during peak flowering. Good light penetration into the lower canopy is key to maximizing both yield and potency.
• Temperature and Humidity: Keep daytime temps between 70°F to 78°F and relative humidity between 45% to 55% during the flowering period. Drop nighttime temperatures to 62°F to 68°F during the final two weeks to encourage that signature purple coloring and maximum trichome production.
• Stretch: Plan for a moderate stretch of around 1.5 to 1.6 times the pre-flip height after switching to 12/12. Adjust your canopy height accordingly.
• Yield: With proper training, expect up to 1.8 pounds per light—roughly 500 to 600 grams per square meter.

Outdoor Growing

Outdoors, Sub Zero thrives in warm, sunny climates with low humidity. Plants typically reach five to seven feet and are ready for harvest by late September to early October, depending on your latitude.

One thing to watch: those dense colas can be a magnet for bud rot if you’re in a humid climate. Keep air moving around the plants and don’t be shy about removing fan leaves that block airflow during the last few weeks.

Grow Tips

• Training: Topping, low-stress training (LST), SCROG, and fimming all work well with Sub Zero. The plant responds beautifully to training techniques and will reward you with a more even canopy and bigger yields.
• Nutrients: Keep the EC moderate (1.8 to 2.2) during peak bloom. Lean into phosphorus and potassium during the flowering period, and supplement calcium and magnesium to support trichome density. Nothing exotic required.
• Drying and Curing: This is where a lot of growers leave quality on the table. Slow dry at 60°F and 60% humidity for ten to fourteen days. If you rush this step, you’ll lose the complex cookie-gas aroma that makes Sub Zero worth growing in the first place.
• Pest and Mold Prevention: Those dense buds are slightly susceptible to botrytis (bud rot) in high-humidity environments. Strategic defoliation during weeks three through five of the flowering period and strong airflow are your best defenses.

Questions to Ask Before Buying Sub Zero Seeds

Before you add a Sub Zero pack to your collection, a few questions will save you from disappointment.

1. Does the listing name the breeder and the full lineage, Oreoz x Super Boof?
2. Is the pack sealed in the breeder’s original packaging?
3. Is it feminized or regular, and does that fit how you organize your collection?
4. Is the seller accountable, with a real address and a clear policy?
5. Have you checked the law where you live? Buyers must be 21 or older.

If the answer to any of the first four is unclear, ask the seller before you buy. Reputable shops are happy to answer, and the ones that are not are telling you something.

Seeds, the Law and Our Rules

Cannabis laws differ by state, and federal hemp and seed rules are changing under Section 781. Check the law where you live before you buy anything. Our cannabis seeds by state guide links every state and its official sources, and our explainer on what Section 781 is covers the federal side.

Every buyer must be 21 or older. We sell seeds only to adults 21+.

Frequently Asked Questions

What is the Sub Zero strain?

An indica-leaning hybrid commonly listed as Oreoz x Super Boof, known for frosty buds and a frozen gas and vanilla aroma.

Is Sub Zero indica or sativa?

It is usually described as an indica-leaning hybrid, roughly 60/40.

What does Sub Zero smell like?

Cold gasoline up front, then vanilla cream and citrus peel, with a peppery finish.

How strong is the Sub Zero strain?

Reported THC usually falls around 20% to 28%, with some samples reported higher. Results vary by sample.

What are the main terpenes in Sub Zero?

Myrcene, limonene, caryophyllene and humulene are most often reported.

Do you give growing advice for Sub Zero?

No.

Who bred the Sub Zero strain?

It is commonly credited to GrowMoreFire Genetics, which selected it for heavy resin, blocky purple flowers and a dessert-gas aroma.

What does Sub Zero #12 mean?

The number usually marks the specific phenotype a breeder selected from a larger group of plants.

Is Sub Zero related to Girl Scout Cookies?

Yes, indirectly. Both of its parents, Oreoz and Super Boof, trace back to the Cookies family through Cookies and Cream and Tropicana Cookies.

What strains are similar to Sub Zero?

Its parents Oreoz and Super Boof, plus cold-themed or dessert-gas strains like Ice Cream Cake, Snowman and Zero Gravity.

Why does the Sub Zero strain look frosty?

Its flowers carry a dense coat of trichomes, the resin glands that hold aroma compounds, which reads as white frost against the dark green and purple buds.

Does the Sub Zero strain contain menthol or mint terpenes?

No meaningful mint terpene shows up in tested samples. The icy impression comes from a mix of limonene, caryophyllene and humulene.

Is the Sub Zero strain feminized or regular?

Both kinds of packs exist depending on the breeder and release. Check each listing for the seed type.

How should I store Sub Zero seeds in a collection?

Keep them sealed in the original packaging in a cool, dark, dry place, and label them with the breeder, lineage and purchase date.

Why is the Sub Zero strain so popular with buyers?

The Sub Zero strain combines two celebrated parents, a rare cold-gas and vanilla aroma, and some of the heaviest frost of any modern hybrid. That mix of story, scent and looks makes it a standout in a dessert-gas collection.

Is the Sub Zero strain the same as other strains with Zero in the name?

No. Zero Gravity and other similarly named strains have their own lineages. The Sub Zero strain is the Oreoz x Super Boof cross, so check the lineage on any listing.

What is the best way to learn more about the Sub Zero strain family?

Read about its parents, Oreoz and Super Boof, and compare them with relatives like Ice Cream Cake. Seeing how each branch smells and looks makes the Sub Zero strain easier to understand.

How do you grow Sub Zero?

It’s an approachable grow for most skill levels and performs well both indoors and outdoors. Indoors, plan for an eight to ten week flowering period with a moderate stretch of 1.5 to 1.6 times the pre-flip height. Keep daytime temps under 78°F during the late flowering period for maximum trichome production, and drop nighttime temps into the low 60s to bring out the purple coloring. Yields can reach 1.8 pounds per light with good training.

How long does Sub Zero take to flower?

Eight to ten weeks indoors (roughly 57 to 63 days). Outdoor plants are usually ready for harvest by late September to early October, depending on where you’re growing.

Bottom Line

The Sub Zero strain earns its reputation with a rare mix of frosty looks, a cold-gas and vanilla nose and two celebrated parents. It is a standout in the modern dessert-gas family for adults 21+.

Sources

• PubChem: beta-Caryophyllene

Last updated October 7, 2026 by James Bean, founder of Seeds Here Now. Nothing here is legal advice. See our disclaimer, terms of use and shipping policy.