Casper OG is an indica-dominant cannabis strain bred from Ghost OG and Face Off OG, known for earthy OG aromas and a calm, increasingly sedating high. Leafly credits Archive Seed Bank with the cross. Lab and listing figures put THC at roughly 17% to 21%, with myrcene leading the terpene profile.
Casper OG Strain at a Glance
| Type | Indica-dominant hybrid |
|---|---|
| Also known as | CPO |
| Lineage | Ghost OG × Face Off OG |
| Breeder / origin | Listed by Leafly as Archive Seed Bank; an older description credits ThaDocta and ORGNKID, which we could not verify |
| THC | 17–21% (typical lab range) |
| CBD | About 1% |
| Dominant terpenes | Myrcene, Limonene, Beta-caryophyllene |
| Aroma and flavor | earthy, diesel, pine, faint citrus, pear, sweet citrus |
| Reported effects | relaxed, sleepy, happy, calm |
| Best for | evening use, winding down, stress relief |
| Flowering time | About 9 weeks |
Where Casper OG Comes From
Casper OG is a cross of two OG Kush-family parents: Ghost OG and Face Off OG. Leafly credits the cross to Archive Seed Bank and also notes that Casper OG is a parent of Lil Sebastian. Our older post on this strain credited ThaDocta’s Face Off OG and ORGNKID’s Ghost OG as the parent cuts, which fits the lineage but is not something we could confirm from a breeder page, so treat the breeder credit as unsettled.
The name is a joke on the ghost theme: a friendly ghost, from a parent called Ghost OG. Beyond that, the strain’s history is thin. It is a modern, mostly dispensary-level cultivar rather than a landmark one, and its reputation rests on its calm, steady effects and its compact plants.
Casper OG Effects: What It Feels Like
Casper OG builds slowly. Allbud describes a warm onset with a lift in mood and a slightly hazy, calm head that does not drain your energy right away. In small amounts people on Leafly describe it as mellowing the mind and body without flattening them.
With more flower, or over a longer session, the body relaxation deepens and many people end up sleepy. Leafly’s readers most often list sleepy and relaxed as the main effects. That makes it an evening strain for most people, good for unwinding after work, a movie or a late dinner. Keep the dose modest if you need to stay active afterward.
Casper OG Terpenes, Aroma and Flavor
Expect earthy, classic OG aromas with a delicate citrus edge. Reviewers also pick out diesel or skunk, and some describe a pear or apple-like sweetness with a little pine. Allbud lists the flavor as sweet and citrusy with a diesel backbone, and says the smoke is smooth.
Myrcene is the most abundant terpene on Leafly’s page, followed by limonene and caryophyllene. Myrcene gives the earthy base, limonene the citrus lift and caryophyllene a faint peppery note. Allbud describes the buds as rounded, lumpy and mint green with amber hairs and a heavy dusting of trichomes.
- Myrcene: earthy, musky and herbal, also found in mango and hops
- Limonene: bright citrus, also found in lemon and orange peel
- Beta-caryophyllene: peppery and spicy, also found in black pepper and cloves
Terpene levels vary from grower to grower and batch to batch, so check the lab label on the package. Learn more in our guide to cannabis terpenes.
Side Effects and How to Use Casper OG
The common complaints are dry mouth and dry eyes. A smaller share of Leafly readers report anxiety, which is more likely when you take more than you are used to. The sedation that makes Casper OG appealing at night can be unwelcome during the day. Start low, especially with higher-THC batches.
With Casper OG, as with any strain, a smaller dose usually avoids anxiety or grogginess. Our cannabis safety guide covers what to do if you take too much.
Do People Use Casper OG for Medical Reasons?
Among Leafly readers, about half mention anxiety, over 40% mention stress and roughly 38% mention insomnia. Allbud’s listing also mentions pain and PTSD. These are anecdotal reports, not medical findings, and anyone managing a health condition should talk with a clinician.
These are user reports, not clinical findings. For what research actually supports, see our cannabis health and research section, and talk to your doctor before using cannabis for a health condition.
Growing Casper OG
- Flowering: About 9 weeks
- Height: Squat, compact plants
- Environment: Suited to indoor growing
Leafly describes Casper OG as a squat plant with a roughly nine-week cycle, which makes it a good fit for indoor tents with limited height. We found no detailed grow journals or yield numbers, so treat anything beyond that as unverified. As with most dense OG-type flower, keep humidity under control late in flowering, since wet Pacific Northwest autumns raise the risk of bud rot outdoors.
Home-grow rules depend on the state: adults can grow at home in states such as California (six plants per residence), Michigan (12 per residence) and Oregon (four per household), while Washington and Illinois allow home growing only for registered medical patients. Check your state in our cannabis laws by state guide before you plant anything.
Strains Like Casper OG
- Ghost OG Moonshine: shares the Ghost OG parent
- OG Kush: the broader OG family
- Gorilla OG: another heavy OG-type
- Triangle Kush: OG-adjacent Florida cut
- Purple Kush: a similar evening indica
Browse more indica strains, the full strain directory, or our guide to cannabis strains.
More Indica Strains to Explore
Chauffeur · Chem i95 · Chemo · CannaSutra · Candy Hustle · Candy Cream · All indica strains
Where to Buy Casper OG
Dispensary menus change every week, and Casper OG may be sold under its own name, as a cross or as a pre-roll or vape. The fastest way to find it is to check store menus online before you go. In Los Angeles, browse Los Angeles dispensaries and check the menus at stores like Stash Dash and Cornerstone Wellness. In Medford, browse Medford dispensaries and check the menus at stores like Oregon Grown Cannabis and Nectar Medford. You can also browse licensed dispensaries in every state we cover. Adults 21 and older can buy with a valid photo ID; see cannabis laws by state for purchase limits.
Casper OG FAQ
Is Casper OG indica or sativa?
Casper OG is an indica-dominant hybrid. Allbud lists it at about 70% indica, and Leafly calls it indica-dominant.
What is Casper OG a cross of?
It is a cross of Ghost OG and Face Off OG. Leafly credits Archive Seed Bank as the breeder.
How strong is Casper OG?
Leafly lists about 21% THC and Allbud lists 17% to 18%, so expect a moderate to strong flower. Batches vary, so check the lab label.
What does Casper OG taste like?
Earthy and diesel-forward with sweet citrus, and some people notice pear. Allbud calls the smoke smooth.
Is Casper OG good for sleep?
Many people use it in the evening because the body effects deepen and often lead to sleepiness. That is a user report, not a medical claim.
For adults 21+ in legal states. Strain information reflects breeder descriptions, lab data and user reports; effects vary by person and batch. Not medical advice.