What Is the Legal Amount of Flower You Can Buy in California?
For a California adult-use customer age 21 or older, the legal purchase limit at a licensed retailer is 28.5 grams of cannabis flower per customer per day. That is one ounce. If you have a valid medical cannabis recommendation, you may qualify for a higher limit, often up to 8 ounces of usable flower, but the shop can apply a lower limit based on local rules, inventory, or its own policy. The practical advice is straightforward: bring a government-issued ID, tell the budtender whether you are shopping as an adult-use or medical customer, and confirm the daily limit before you order. Do not assume you can visit several shops in one day and combine purchases. The legal limit applies to what you possess, not just to one receipt.
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What to Check Before You Buy
- Age and ID: You must be 21 or older for adult-use cannabis. A valid passport, driver's license, or state ID works. Medical patients may be 18+ with a valid physician's recommendation and ID.
- Customer type: Adult-use limits differ from medical limits. Medical patients can often purchase more flower, but the retailer must verify your recommendation and enter you as a medical customer.
- Daily tracking: Licensed California retailers track sales. If you already bought your daily adult-use maximum at another shop, a second shop should not sell you more adult-use flower that day.
- Product type: Flower, concentrates, and infused products have separate limits. Do not treat one ounce of flower and eight grams of concentrate as a combined allowance for flower.
- Packaging and transport: Keep cannabis in sealed retail packaging, keep it out of reach while driving, and do not consume in public or in a vehicle.
California Flower Purchase Limits at a Glance
These bands reflect state law for licensed cannabis businesses. Local ordinances and retailer policies can be stricter.
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- Adult-use flower: 28.5 grams (1 ounce) per customer per day.
- Adult-use concentrate: 8 grams per customer per day.
- Medical flower: Up to 8 ounces (226.8 grams) of usable cannabis for qualified patients under state medical cannabis rules, subject to local limits and retailer policy.
- Personal cultivation: Up to 6 living cannabis plants for adults 21+ at a private residence, with local rules possibly tighter.
- Gifting: An adult 21+ may give up to 28.5 grams of flower to another adult 21+ without payment, but retail sale requires a license.
Common Pitfalls
- Buying more than you can possess: The purchase limit and possession limit are connected. Multiple dispensary stops do not create a legal workaround.
- Assuming a medical card gives unlimited flower: Medical limits are higher, not endless. The 8-ounce figure is a state benchmark, and some cities or shops limit medical purchases too.
- Purchasing for friends: You can gift a limited amount, but buying on behalf of someone else or reselling without a license is illegal.
- Crossing state lines: California cannabis cannot legally cross into another state, even if the other state allows cannabis.
- Ignoring local rules: Some California cities prohibit storefront retail or set stricter possession and purchase limits.
FAQ
Can I buy one ounce of flower in California?
Yes. For adult-use customers 21 and older, 28.5 grams is one ounce and matches the daily purchase limit at a licensed retailer.
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Can I buy more with a medical cannabis card?
Possibly. A valid medical cannabis recommendation can allow up to 8 ounces of usable flower under state medical rules, but you must confirm that the retailer recognizes your medical status and follows the higher limit. Local rules can reduce that amount.
Does the limit reset at each dispensary?
No. The daily adult-use limit follows the customer. A licensed retailer should not sell you more than 28.5 grams of adult-use flower in a day, and possession above the limit remains unlawful even if you split the purchase across shops.
Can I buy flower online for pickup?
Licensed California retailers may offer online ordering and pickup or delivery. The same age check, daily limit, and possession rules apply.