Grape Stomper Strain

Grape Stomper Strain: Grape Candy With a Diesel Bite

The Grape Stomper strain is a hybrid of Purple Elephant and Chemdawg Sour Diesel — the grape-candy hash plant meets the gas — credited by Leafly and SeedFinder to Gage Green Genetics. Open a jar and it smells like a sweet, tangy grape lollipop with diesel underneath; one Leafly reviewer nails it as "a gassy Grape Gobstopper." The high starts in your head, gets tingly in the body within a few minutes, and lands somewhere uplifted and easy rather than knocked out. If you want sweet-fruit-and-gas flower right now, start with our THCA flower collection.

You've also probably seen it under another name. For years California dispensaries sold Grape Stomper as Sour Grapes — and Leafly still files its page under that URL. Who bred the original, which name came first, and whether the "Chemdawg" in it is really Chemdawg are all argued about online. Below: what the databases and the one detailed history actually say, how the high unfolds, how strong it really is, its long list of offspring, how to grow it, and how to judge a bag.

Grape Stomper Strain Genetics & Lineage

• Type: Hybrid. Leafly lists it as a hybrid with "mostly energizing" effects; AllBud and ILoveGrowingMarijuana call it 70% sativa / 30% indica; Ry Prichard describes it as slightly sativa-dominant.
• Breeder: Gage Green Genetics (sometimes written Gage Green Seeds or Gage Green Group), per Leafly, SeedFinder and GrowDiaries. See the history below for the earlier Jojorizo credit.
• Parents: Purple Elephant × Chemdawg Sour Diesel. Leafly names JojoRizo as the Purple Elephant breeder and Elite Seeds as the source of the Chemdawg Sour Diesel.
• THC: 18% on Leafly, which also lists 1% CBG; 18–26% on AllBud; 16–26% on ILoveGrowingMarijuana.
• CBD: low — ILoveGrowingMarijuana gives 0.1–0.48%.
• Aliases: Sour Grapes, Sour Grape and Leafly's abbreviation GSP.

Where the grandparents come from

SeedFinder fills in one more level:

• Purple Elephant — Purple Urkle × an unknown parent. GrowDiaries calls it a Purple Urkel hash plant. This is almost certainly where the grape comes from — Purple Urkle is the same grape-scented purple line behind Granddaddy Purple.
• Chemdawg Sour Diesel — Elite Seeds' cross, which SeedFinder lists as "probably" Headband × Sour Diesel. That's the source of the diesel bite and the energetic, heady top end.

Jojorizo, the "Snowman" male and Gage Green

The most detailed origin story we found is Ry Prichard's Cannabis Encyclopedia column at Toke of the Town. In it, the original was the work of the late breeder Jojorizo, who used his much-loved Purple Hashplant mother — "Purple Elephant" — and an Elite Genetics ChemDawg Sour Diesel male he called "Snowman." The result became a clone-only favorite. Gage Green Genetics later took that original Snowman male and put it back on the Grape Stomper clone, "essentially creating a backcross line," which is how the strain made it into seed form.

So both credits are fair in a way: Jojorizo made the plant, Gage Green made it available. (The "Snowman" here is a nickname for one male plant — not the separate Snowman strain.)

Is the Chemdawg side really Chemdawg?

Maybe not. Prichard notes that many people argued Elite's ChemDawg wasn't the real Chem '91 but a Headband cut, and the GrowDiaries listing goes further, saying the strain is often described as Headband × Sour Diesel and contains no Chemdawg at all. Since Headband is itself an OG Kush × Sour Diesel line, the practical difference is small — either way, you're getting OG/Diesel gas on top of grape. But nobody has published genetic testing to settle it.

Grape Stomper or Sour Grapes?

Same plant, two names, and no agreed answer on which came first. SeedFinder says a California collective called Blue Sky sold it as "Sour Grapes," taking the credit away from the original breeder. Prichard reports both versions — some say Sour Grapes was the original name, others say Stomper came first and dispensaries renamed it. Today Leafly's page is titled Grape Stomper "aka Sour Grapes," and AllBud lists it as "Grape Stomper (Sour Grapes)." If you see Sour Grapes on a menu, it's usually this strain — but ask.

Grape Stomper's offspring

SeedFinder counts 51 direct descendants — this is one of the most-used grape parents in modern breeding. The best known:

• Grape Pie — Cherry Pie × Grape Stomper.
• Grape Cake — Seed Junky's Grape Stomper × Cherry Pie × Wedding Cake cross, listed by Leafly as an offspring.
• Grape Stomper OG — Gage Green's Grape Stomper × New York OG Kush, per Leafly — a different strain that often ranks for this same search.
• Mac Stomper — MAC × Grape Stomper OG, so a grandchild.
• Others on SeedFinder: Blue Stomper and Cookie Stomper (Irie Genetics), Breath Stomper (Blurred Vision Genetics), Bright Moments and Bright Puff (Gage Green), plus Candyman, Candy Shop, Cenote and Courvoisier.

Grape Stomper Terpene Profile

Leafly lists myrcene as Grape Stomper's dominant terpene, followed by limonene and caryophyllene, but gives no percentages. Two long strain guides quote ranges — myrcene around 0.5–1.0%, limonene 0.3–0.7%, caryophyllene 0.2–0.6% — without naming any lab, so treat those as guesses. A DC dispensary guide adds pinene. Caryophyllene is the one with real research behind it: a 2008 PNAS study identified beta-caryophyllene as a "dietary cannabinoid" that binds CB2 receptors.

• Myrcene: The herbal, musky base that makes the grape smell ripe rather than artificial — and probably why big doses get sleepy.
• Limonene: The tangy, sour-candy brightness that earned the "Sour Grapes" name, and part of the uplifted mood.
• Caryophyllene: Pepper and spice, which reads as part of the diesel bite from the Sour Diesel side.
• Pinene: A possible pine note that helps keep the head clear — listed by one guide only.

Like most "grape" strains, no single terpene is the grape. It's the blend — myrcene's ripeness, limonene's tang and a little spice — coming down from the Purple Urkle line.

Appearance

AllBud describes dense, spade-shaped, forest-green nugs threaded with orange hairs and coated in white crystal trichomes. Prichard says growing plants are easy to spot because even the leaves are covered in resin — they "shine with a white sheen, even from a distance" — and the dried buds look sugar-dusted. Purple-line genetics can push dark purple into the sugar leaves on some cuts, especially with cool nights late in flower, but green is the norm. One AllBud reviewer adds that the buds can be delicate and break apart easily.

Aroma and Flavor

The nose is pure grape candy — sweet and tangy, the way a grape lollipop smells — with diesel and earth underneath. AllBud's aroma tags read candy, earthy, grape, sour and sweet, and its flavor tags berry, candy, fruity, grape and sweet. Leafly lists grape, sweet and diesel, and Prichard describes a smoke with an aftertaste of sweet, floral grape.

How much gas you get depends on the cut. Some phenotypes lean almost all grape candy; others push more pine and fuel from the Sour Diesel side. That "gassy Grape Gobstopper" line from a Leafly reviewer is the sweet spot most people are chasing.

Recreational Effects

Grape Stomper is a feel-good strain that starts heady. On Leafly, where it holds a 4.3 rating from more than 400 ratings, the top effects are:

• Tingly: the headline effect — Leafly describes a tingly body sensation that shows up a few minutes after the head high.
• Uplifted and euphoric: a quick mood lift. AllBud adds focus and a sociable streak — one Leafly reviewer admits, "I talk WAY too much after smoking this stuff."
• Head pressure, then body: Prichard describes "a very potent ear-ringing/band of pressure" in the head and face first, then relaxation that settles into the neck and shoulders.
• Relaxed at the end: ILoveGrowingMarijuana's ratings put relaxed and happy at the top, with uplifted and euphoric close behind.

How the high unfolds: onset, peak and duration

• First few minutes: a fast, heady rush and that band of pressure around the eyes and temples.
• 15–60 minutes: the peak — tingly, euphoric and talkative.
• 1–3 hours: a gradual settle into a loose, relaxed body. At high doses, the myrcene and Purple Elephant side can tip it into sleepy — one Leafly reviewer warns they've nodded off.

At a normal dose, it's an afternoon and evening-social strain. Push the dose and it becomes a nightcap.

→ Experience it yourself — shop Diesel Hemp's THCA Flower

How Strong Is Grape Stomper?

Grape Stomper is above average, with a wide spread depending on the source and the cut:

• Leafly: 18% THC and 1% CBG, "higher THC than average."
• AllBud: 18–26% THC.
• ILoveGrowingMarijuana: 16–26% THC, 0.1–0.48% CBD.
• Dispensary labels: one JointCommerce guide says it found 25–31% on flower labels, but it names no labs — treat 30%+ claims without a COA with suspicion.

Realistically, a good Grape Stomper sits in the high teens to low-to-mid 20s. AllBud's warning is the useful one: the candy flavor makes it easy to keep hitting, and the high THC can catch up with you. Prichard simply calls it potent.

THCA flower is labeled differently from dispensary flower: the lab reports THCA, which converts to THC when heated, plus a small amount of delta-9 THC. When you compare a batch of Grape Stomper against the 16–26% range above, compare total THC on the COA, not the headline number — our guide on how to read a THCA flower COA walks through the math.

Grape Stomper vs Grape Stomper OG

These get mixed up constantly — Leafly's Grape Stomper OG page even ranks for "grape stomper strain." They're different plants:

• Grape Stomper: Purple Elephant × Chemdawg Sour Diesel. Sweeter, more grape candy, tingly and uplifted.
• Grape Stomper OG: Gage Green's Grape Stomper × New York OG Kush, per Leafly. More pine and lemon from the OG side, and Leafly reviewers describe it as mostly calming, with a heavier, sedating high.

If a menu just says "Stomper," ask which one. And Mac Stomper, a popular newer strain, comes off the OG version, not the original.

Grape Stomper vs Similar Strains

• vs Grape Pie: its best-known child. Grape Pie adds Cherry Pie for a baked, dessert-style grape and a heavier finish; Grape Stomper is the brighter, tangier parent.
• vs Grape Ape: both are grape-forward, but Grape Ape is the classic indica-leaning body strain. Grape Stomper is more heady and social, with diesel in the nose.
• vs Granddaddy Purple: a Purple Urkle cousin on the grape side. GDP is the sleepy, deep-purple grape; Grape Stomper keeps it upright.
• vs Sour Diesel: the gas grandparent. Sour Diesel is all fuel and energy; Grape Stomper wraps a softer version of that in grape candy.
• vs Super Boof: our featured in-stock pick, and honestly not a twin. Both bring sweet grape-berry candy over gas and a potent, euphoric high — Super Boof has Purple Punch in its Slurricane parent — but it lands heavier and more relaxing. Want more fuel? Mule Fuel is our gas-forward pick.

Who Grape Stomper Is (and Isn't) For

Good fit: grape and candy-flavor fans who still want some gas, afternoon and evening social sessions, people who like a heady start with a tingly, relaxed body, and anyone curious about the parent behind Grape Pie and Grape Cake.

Poor fit: people who want a clear, focused work-day strain at higher doses, and anyone prone to dizziness or head pressure — "dizzy" is one of Leafly's top negatives. For sweet fruit and gas on our shelf, Super Boof is the pick, ½oz from $65.

How to Use Grape Stomper THCA Flower — and How Much

THCA has to be heated to do anything. Raw, it isn't intoxicating; heat converts it to THC (decarboxylation), which is why the method matters as much as the strain.

• Smoking (joint, pipe, bong): the fastest onset. Take one or two small hits, then wait 10–15 minutes before deciding on more.
• Dry-herb vaporizer: the cleanest way to taste the grape candy. Around 350–380°F keeps the sweet, tangy fruit up front; 390–410°F brings out more of the diesel and spice and a heavier body.
• Pre-rolls: the no-prep option — see our THCA pre-rolls.
• Homemade edibles: decarb the flower first. Edibles take 30–120 minutes to kick in and last far longer, so start low and wait the full two hours.

How much? New or occasional users: one or two small puffs, then wait 15 minutes — that head pressure arrives fast. Regular users usually find two or three hits gives the full tingly, euphoric arc. Big sessions lean sleepy. You can always add more; you can't take it back.

Medicinal Benefits

These are uses consumers report on Leafly, AllBud and ILoveGrowingMarijuana, not established clinical outcomes. Individual response varies with dose, tolerance and chemotype.

• Stress: the top reason on Leafly, at about 37% of reviewers.
• Pain: about 34% on Leafly; reviewers mention back pain and a hip bursitis, and AllBud lists arthritis and chronic pain.
• Low mood: about 32% of Leafly reviewers cite depression; AllBud also lists fatigue and PTSD.
• Sleep and migraines: a few Leafly reviewers report both, and AllBud lists insomnia and migraines — though "mostly energizing" at normal doses, so this is a higher-dose, end-of-day use.

For a plain-language primer on how terpenes are thought to shape these effects, see Project CBD on terpenes. Nothing here is medical advice, and nothing on this page is intended to diagnose, treat, cure or prevent any disease. If you take prescription medication or have a health condition, talk to your doctor before using any cannabis product.

Side Effects and Cautions

• Dry mouth and dry eyes — the most common complaints on Leafly and ILoveGrowingMarijuana.
• Dizziness — one of Leafly's top three negatives.
• Head pressure and headaches — that "band of pressure" onset can tip into a pressure headache; one AllBud reviewer reported it, along with feeling anxious and shaky.
• Overdoing it — AllBud warns the sweet flavor makes it easy to take too much at once.

Is Grape Stomper good for sleep? Only at higher doses. Don't drive after using it, and talk to your doctor first if you take prescription medication, are pregnant or nursing, or have a heart condition.

Is Grape Stomper Top Shelf? How to Judge a Good Bag

• Ask which Stomper. Grape Stomper, Grape Stomper OG and Mac Stomper are different strains, and "Sour Grapes" can mean any grape-sour cut a shop wants it to.
• A current third-party COA naming the lab, with THCA, delta-9 and total THC. Treat 30%+ claims without paperwork as marketing. Ours are on the lab results page.
• Grape and gas. A real Grape Stomper smells like grape candy with diesel underneath. Flat, grassy or hay-like flower is old or rushed.
• Sugar-dusted buds — heavy white frost, even on the sugar leaves. This is a famously resinous plant.
• Intact nugs — the buds can be delicate, so a bag of dust and shake usually means rough handling.

Growing Grape Stomper

Grape Stomper's reputation with growers is big yields and big resin. GrowDiaries' listing calls it a "massive yielding grapey strain."

• Flowering: about 72 days per SeedFinder and ILoveGrowingMarijuana; outdoors, finishing around mid-October.
• Yield: ILoveGrowingMarijuana estimates about 12 oz/m² indoors and 16+ oz per plant outdoors, noting data is limited. One GrowDiaries grower reported 85 g from a single plant.
• Height: 3–4 feet per ILoveGrowingMarijuana. Top early and use low-stress training or a screen to even out the canopy.
• Late flower: the dense buds and myrcene-rich profile mean good airflow matters — keep humidity down in the last weeks to protect against mold.
• Seeds: SeedFinder lists feminized seeds from Gage Green, though the strain began as a clone-only cut, so availability varies.

Is Grape Stomper THCA Flower Legal?

Under the 2018 Farm Bill, hemp is federally legal when it contains no more than 0.3% delta-9 THC on a dry-weight basis — see the USDA hemp program. THCA flower is sold under that rule. State laws differ and are changing, so check your state before you order. And whatever the label says, THCA flower will show up on a drug test — heated, it is THC.

Shop Premium Flower at Diesel Hemp

• Super Boof THCA Flower — our featured pick — sweet grape-berry candy over gas and a potent, euphoric high, ½oz from $65.
• THCA Flower — the full lineup, grown in Colorado by Diesel Hemp and partner farms.
• THCA Pre-Rolls — the same flower, pre-rolled.
• THCA Small Buds — same genetics, smaller nugs, better price per gram.
• What THCA flower actually is — the encyclopedia explainer.

Frequently Asked Questions

Is Grape Stomper indica or sativa?

Grape Stomper is a sativa-leaning hybrid. Leafly calls it a hybrid with mostly energizing effects, and AllBud lists it as 70% sativa / 30% indica.

What is Grape Stomper a cross of?

Purple Elephant × Chemdawg Sour Diesel. SeedFinder lists Purple Elephant as a Purple Urkle cross and Elite Seeds' Chemdawg Sour Diesel as probably Headband × Sour Diesel.

Who bred Grape Stomper?

Leafly and SeedFinder credit Gage Green Genetics. Ry Prichard's Toke of the Town history says the late breeder Jojorizo made the original clone, and Gage Green later re-created it as a backcross line in seed form.

Is Grape Stomper the same as Sour Grapes?

Yes, usually. Leafly lists Grape Stomper 'aka Sour Grapes,' and SeedFinder says a California collective sold it under the Sour Grapes name. Which name came first is disputed.

How strong is Grape Stomper?

Leafly lists 18% THC plus 1% CBG; AllBud gives 18–26% and ILoveGrowingMarijuana 16–26%. Claims above 30% without a lab report aren't reliable.

What does Grape Stomper taste like?

Sweet, tangy grape candy with diesel underneath and a floral-grape aftertaste. One Leafly reviewer calls it 'a gassy Grape Gobstopper.'

What are the effects of Grape Stomper?

Leafly's top effects are tingly, uplifted and euphoric. It starts with a heady rush and head pressure, then settles into a relaxed body.

Is Grape Stomper good for sleep?

At normal doses it leans energizing, but at higher doses some Leafly reviewers say it puts them to sleep. Use it later in the day if you want that.

What terpenes are in Grape Stomper?

Leafly lists myrcene as dominant, with limonene and caryophyllene. No published lab percentages were found.

What's the difference between Grape Stomper and Grape Stomper OG?

Grape Stomper OG is a Gage Green cross of Grape Stomper with New York OG Kush. It's more piney and, per Leafly reviewers, more calming and sedating.

How long does Grape Stomper take to flower?

About 72 days indoors per SeedFinder, finishing around mid-October outdoors. It's known as a heavy yielder.

Where can I buy Grape Stomper THCA flower online?

Grape Stomper isn't in the Diesel Hemp shop right now. Our closest pick is Super Boof THCA Flower — sweet grape-berry candy over gas with a potent, euphoric high, ½oz from $65, third-party lab tested. It runs heavier than Grape Stomper, so for something more upbeat try Strawberry 2.1. Add a pre-roll to ship free over $75.

Related Strains

• Grape Pie — Cherry Pie × Grape Stomper — its best-known child.
• Grape Cake — Seed Junky's Grape Stomper × Cherry Pie × Wedding Cake cross.
• Mac Stomper — MAC × Grape Stomper OG — a grandchild.
• Purple Urkle — the grape line behind its Purple Elephant parent.
• Sour Diesel — the gas on the Chemdawg Sour Diesel side.
• Headband — the cut some say Elite's 'Chemdawg' really was.
• Chemdawg — the namesake of its Chemdawg Sour Diesel parent.
• Granddaddy Purple — a sleepier Purple Urkle cousin.
• Super Boof — our sweet fruit-over-gas in-stock pick.
• Browse the Full Diesel Hemp Encyclopedia