Sour Grape Strain Feminized SeedsSweet grape up front, sour fuel on the finish
5.00 out of 5 · 16 reviewsThe Sour Grape strain is a sativa-leaning cross that pairs a sweet, grape-candy nose with the sour fuel bite its name promises. Feminized Sour Grape seed listings give its parents as Grapefruit and Sour Kush, and the plants flower in about 8 to 10 weeks with THC around 18%. These feminized seeds grow female plants that can blush purple when autumn nights turn cool.
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What is the Sour Grape strain?
Sour Grape is a sativa-leaning hybrid, about 60% sativa, that seed sellers list as a cross of Grapefruit and Sour Kush, named for its mix of sweet grape and sour diesel aromas. It is listed at around 18% THC with only trace CBD, needs 8 to 10 weeks of indoor bloom and finishes outdoors in late September. No original breeder is publicly credited, and Leafly and AllBud describe a separate Sour Diesel × Granddaddy Purple cut under the same name.
Ratio from feminized Sour Grape seed listings. AllBud rates its Sour Diesel × Granddaddy Purple version as an even 50/50.
Sour Grape's name describes its smell: grape candy on the first sniff and a sharp, fuel-like sourness right behind it.
Sour Grape strain specs
Sour Grape has no publicly credited breeder, so these numbers come from feminized seed listings for the Grapefruit × Sour Kush line, checked against Leafly and AllBud. Where the dispensary version described by those databases differs, the table says so.
| Type | Sativa-leaning hybrid, roughly 60% sativa |
|---|---|
| Genetics | Grapefruit × Sour Kush (seed listings); Leafly and AllBud list Sour Diesel × Granddaddy Purple |
| Bred by | Not publicly credited |
| THC | About 18%; AllBud lists 10–18% |
| CBD | Trace in seed listings (about 0.01%); AllBud lists up to 2% |
| Main terpenes | Myrcene, caryophyllene, pinene, limonene |
| Aroma & flavor | Sweet grape, sour diesel, earthy, fruity, light citrus |
| Reported effects | Uplifted, happy, talkative, relaxed |
| Seed type | Feminized photoperiod (female plants) |
|---|---|
| Flowering indoors | 8–10 weeks |
| Outdoor harvest | Late September (Northern Hemisphere) |
| Height | Under 1.2 m (4 ft) indoors; 1.5–2.4 m (5–8 ft) outdoors |
| Yield | About 400–500 g/m² (1.3–1.6 oz/ft²) indoors; 500–1,000 g (18–35 oz) per plant outdoors |
| Difficulty | Easy to moderate |
| Best methods | Topping, LST and SCROG |
| Climate | Indoors, or temperate to warm gardens with cool autumn nights |
Where does the Sour Grape strain come from?
Sour Grape is sold as feminized seed under a Grapefruit × Sour Kush pedigree, but no breeder has publicly claimed the cross. Grapefruit is a fruity, sativa-leaning plant usually traced to Cinderella 99, and Sour Kush is DNA Genetics' cross of Sour Diesel and OG Kush, so the diesel sourness in Sour Grape most likely arrives through its Sour Kush side. The same pairing is also sold under the name Sour Grape Kush.
The name Sour Grape has been attached to more than one plant. Leafly and AllBud describe a dispensary Sour Grape bred from Sour Diesel and Granddaddy Purple, with a pungent fuel scent and fruity aftertones. These versions share the same grape-and-fuel idea, but their grow figures are not interchangeable, so compare the listed parents before you compare THC numbers or flowering times.
Is Sour Grape the same as Sour Grapes?
No: Sour Grapes, with an s, is usually a different cross, Grape Ape × Sour Diesel from Apothecary Genetics. SeedFinder's entry for that strain even warns readers not to confuse it with an Oakland cut called Sour Grapes, and some dispensaries have used the same name for Grape Stomper. Feminized Sour Grape seeds, by contrast, are listed as the Grapefruit × Sour Kush line.
Check the parents, not just the name. Grow reports and lab results posted for the Sour Diesel × Granddaddy Purple or Grape Ape × Sour Diesel versions describe different plants from the Grapefruit × Sour Kush seed line.
What does Sour Grape taste like, and how does it feel?
Aroma and flavor
Sour Grape smells like grape candy at first, then a sharp, sour diesel note takes over on the exhale, with earthy undertones and a light citrus edge.
- Grape
- Sour
- Diesel
- Sweet
- Earthy
- Citrus
Terpenes
- Myrcene
- Musky, ripe-fruit base
- Caryophyllene
- Peppery spice under the fuel
- Pinene
- Fresh, piney lift
- Limonene
- Citrus brightness
Seed listings name these Sour Grape terpenes but publish no lab percentages, so the order is only approximate.
Reported effects
Sour Grape is most often described as upbeat, happy and sociable at first, easing into a mellow, relaxed body feel. Leafly users name relaxed, happy and talkative as its top effects, while AllBud lists creative, euphoric and sociable; some people also notice the munchies.
- Happy
- Uplifted
- Talkative
- Creative
- Relaxed
With Sour Grape, people mostly mention cottonmouth and dry, red eyes, plus a strong appetite that some people would rather avoid.
The Sour Grape effects above come from Leafly and AllBud user reports and seed-bank descriptions. Individual reactions differ, and none of it counts as medical advice.
How do you grow Sour Grape seeds?
Sour Grape is a fairly forgiving plant to grow from seed: veg it for 4 to 6 weeks, top and spread the branches to manage the sativa stretch, give them 8 to 10 weeks of bloom under 12/12, and let cooler nights late in flower bring out purple tones.
- Germinate2–7 days
Sour Grape seeds sprout quickly in a damp paper towel or straight in a light seedling mix; keep them warm, around 22–26 °C (72–79 °F).
- Vegetate4–6 weeks indoors
Top above the fourth or fifth node and tie branches outward so Sour Grape stays under about 1.2 m (4 ft) indoors.
- Flower8–10 weeks
Expect a sativa-style stretch in the first two weeks of 12/12, then a stronger grape-and-fuel smell as the buds fill out.
- HarvestDay 56–70 indoors · late Sep outdoors
Cut Sour Grape once most trichome heads look milky under magnification; waiting a few more days gives a more relaxed effect.
Grow tips for Sour Grape
- Train early for an even canopy. Sour Grape's sativa side stretches after the flip, so topping and LST in veg keep the colas level and close to the light.
- Use cool nights for color. Seed listings note that cooler nights late in bloom bring out purple hues; many growers let night temperatures fall about 5–8 °C (9–14 °F) below the daytime level in the last weeks.
- Filter the fuel smell. Sour Grape's diesel side turns pungent as the buds ripen; an inline carbon filter on the tent exhaust keeps it contained.
- Give outdoor plants room. Outdoors, Sour Grape can reach 1.5–2.4 m (5–8 ft) and is ready by late September, which suits gardens where autumn arrives early.
- Fill the space with females. Each feminized Sour Grape seed should grow a female plant, so every spot in the tent goes toward buds instead of sexing.
Is Sour Grape the right strain for you?
Great pick if you
- Love sweet, fruity strains with a sour diesel edge
- Want a sociable, upbeat hybrid rather than a knockout
- Prefer moderate THC around 18%
- Like plants that can turn purple in cool weather
- Need an outdoor harvest by late September
Think twice if you
- Want 25% THC or more
- Need a heavy, sleepy nighttime strain
- Want a strain with a single, well-documented breeder history
- Can't hide a strong fuel smell
Sour Grape strain FAQ
Is Sour Grape indica or sativa?
Sour Grape is a sativa-leaning hybrid. Feminized seed listings rate it close to 60:40 in favor of sativa. AllBud rates its Sour Diesel × Granddaddy Purple version as an even 50/50, and users describe a mix of upbeat mood and body relaxation.
What are Sour Grape's parents?
Feminized Sour Grape seeds are listed as Grapefruit × Sour Kush. Leafly and AllBud describe a different Sour Grape made from Sour Diesel and Granddaddy Purple. No breeder has publicly claimed either cross, so the parents depend on which Sour Grape you mean.
Is Sour Grape the same as Sour Grapes?
Not usually. Sour Grapes, with an s, normally means Apothecary Genetics' Grape Ape × Sour Diesel, and some dispensaries have used that name for Grape Stomper too. Sour Grape seeds are listed under a separate Grapefruit × Sour Kush pedigree.
How much THC does Sour Grape have?
Seed listings put Sour Grape at about 18% THC with only trace CBD. AllBud's range for the Sour Diesel × Granddaddy Purple version is 10–18% THC, so either way it is moderate by modern standards.
How long does Sour Grape take to flower?
Sour Grape needs about 8 to 10 weeks of flowering indoors once the photoperiod changes to 12/12. Planted outside north of the equator, it is usually ready in late September, according to seed listings.
What does Sour Grape taste like?
Sour Grape tastes like sweet grape candy on the inhale with a sour, diesel-like finish. Earthy and light citrus notes sit underneath, and myrcene, caryophyllene and pinene are the terpenes most often listed.
How much does Sour Grape yield?
Seed listings give about 400–500 g/m² (1.3–1.6 oz/ft²) indoors and 500–1,000 g (18–35 oz) per plant outdoors. A trained canopy indoors and a long, sunny season outdoors push plants toward the top of that range.
Does Sour Grape turn purple?
Sour Grape can show purple hues, especially when nights get cool late in flowering. Color varies by phenotype, so some plants stay mostly green even in a cold finish.
How tall does Sour Grape grow?
Indoors, seed listings describe Sour Grape as a compact plant under about 1.2 m (4 ft) when trained. Outdoors it grows to roughly 1.5–2.4 m (5–8 ft), so give it space or top it early.
Sour Grape reviews
5.00 out of 5 from 16 reviews
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16 reviews for Sour Grape Strain Feminized Marijuana Seeds
Sour Grape's relatives and similar strains
Grapefruit Feminized
Sour Diesel Feminized
Granddaddy Purple Feminized
Grape Ape FeminizedBeaver Seeds sells cannabis seeds for collection and genetic preservation where permitted. Check the laws in your state, province or country before germinating seeds. Effects are user-reported and are not medical claims.
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Aria –
Sour grape taste and a smooth body-heavy unwind. Nice mix of flavor and calm without being too sleepy.
Alex Gordon –
This plant stays sturdy and does well with minimal pruning. The buds come out dense and visually appealing.
Spencer –
This plant thrives with basic feeding and doesn’t require complex techniques. The buds finish with a great aroma and solid structure.
Jason Barnes –
This strain is a delight to smoke, offering a delightful sweet flavor that consistently brings a sense of calmness. Its lineage is evident in its delightful blend of sweetness and tanginess. Using this strain seems to effortlessly alleviate my worries; it’s truly beneficial. These plants require minimal upkeep and are forgiving, making them suitable for beginners and experienced growers alike. Moreover, they provide a well-rounded high—uplifting and euphoric, yet still conducive to a laid-back smoking experience. And as for the yields? Let’s just say, it exceeded my expectations.
Ricky McFarland –
Sour Grape is very fun to smoke taking off a pleasant sweet taste that makes me feel so calm all the time. I feel like my worries fades away when I used this strain. It’s definitely very helpful. This plants was very easy to grow and develops a greeny thick buds and branches were pretty strong it also yield quite high when grown indoors.
Madeleine Mould –
This strain also has a large plant with a very bushy framework that, whether the weight of its buds is not to break the branches, not bad at all in indoor yields 550 gr/m2 in a flowering cycle of 9 weeks but returns are strong. THC crystals tend to develop with extremely potent and resinous THC to cover the buds. Its flavor is like a sour grape and a fruity aftertaste. I felt very relaxed and happy after smoking this.