In California, adults 21, older can purchase up to 28.5 grams (~1 ounce) of cannabis flower in a single day. You can buy up to 8 grams of concentrate in the same transaction / across the same calendar day.
These limits are set by state law, apply at every licensed dispensary in California, including delivery orders in Los Angeles [Internal link: /delivery-los-angeles/], every other jurisdiction. The rules are identical in San Diego, Sacramento, every other California market.
How Much Cannabis Can You Buy in California in One Day?
Most adults can purchase 28.5 grams of flower, 8 grams of concentrate. That is the ceiling set by California state law for adult-use customers.
The limit resets each calendar day. It is tracked per licensed retailer, which has practical consequences explained in a later section.
If you are a medical cannabis patient with a valid Medical Marijuana Identification Card (MMIC) / a physician’s recommendation, your daily limit is substantially higher. Learn more about qualifying for a California medical cannabis card [Internal link: /california-medical-cannabis-card/].
The Daily Limits Table (Flower, Concentrates, Plants)
The figures below come directly from California Code of Regulations, Title 4, Section 15409, California Health & Safety Code §11362.1.
| Product Type | Adult-Use Daily Limit | Medical Patient Daily Limit |
| Cannabis flower (dried) | 28.5 grams (~1 oz) | 8 ounces (226.8 g) |
| Cannabis concentrates | 8 grams | 8 grams (physician can authorize more) |
| Live cannabis plants | 6 plants | 6 plants (physician can authorize more) |
Source: California Code of Regulations, Title 4, §15409 / California Health & Safety Code §11362.1
Key points from this table:
The 8-ounce medical flower limit is the source of the most common confusion, particularly in Los Angeles County. That eight-ounce figure is not a separate LA rule. It is the statewide medical patient allowance under §11362.77 of the Health & Safety Code. When you see ‘8 oz’ mentioned alongside the 28.5-gram adult-use limit, they apply to two different customer categories.
For a plain-language breakdown of cannabis weights, what they mean see our California cannabis weight measurements guide [Internal link: /california-cannabis-weight-measurements/].
Adult-Use Limits Versus Medical Patient Limits
Adult-use customers, meaning anyone 21 / older with a valid government ID, are capped at 28.5 grams of flower, 8 grams of concentrate per day. No additional documentation is required.
Medical patients operate under a different tier. A patient with a valid physician’s recommendation / state-issued MMIC can purchase up to 8 ounces (226.8 grams) of flower per day. For concentrates, plants, the default medical limit matches the adult-use limit. A physician can authorize higher amounts when medically appropriate.
The practical difference is significant. Eight ounces is roughly eight times the adult-use flower limit. Patients who need cannabis for chronic / serious conditions rely on this higher allowance to avoid making repeated dispensary visits.
Medical status is verified at point of sale. If your documentation has expired / your dispensary cannot confirm it, you will be processed as an adult-use customer, the standard limits apply.
Does the Limit Apply Per Order, Per Day, / Per Dispensary?
The daily limit is often misunderstood. Under California regulations, it applies per licensed retailer, per day, not per transaction statewide.
Daily-limit rules:
- You can place one / more orders at the same dispensary. The combined total cannot exceed your daily limit at that location.
- You could theoretically visit multiple licensed dispensaries in one day. Each retailer tracks limits independently.
- Retailers are required to track customer purchases, refuse a sale that would push a customer past the daily limit for that location.
Individual dispensaries may enforce stricter internal policies. They cannot be more permissive than state law allows. California cannabis laws [Internal link: /california-cannabis-laws/] set the minimum compliance standard for retailers.
How Delivery Orders Are Tracked Against the Daily Limit
Licensed cannabis delivery in California follows the same rules as in-store purchases. A delivery order counts against your daily limit at the retailer fulfilling that order.
If you place a delivery order through a licensed platform, the dispensary processes it like any other sale. The limit applies at the time of order placement, not at the time of delivery. If your cart exceeds the daily limit for that retailer, the order will not be confirmed.
For customers in Southern California using same-day delivery services in Los Angeles [Internal link: /delivery-los-angeles/], this means your delivery, any same-day in-store visit to the same retailer counts together toward the limit.
Possession Limits Versus Purchase Limits
Purchase limit, possession limit are related. Not identical.
The purchase limit is the maximum you can buy from a single licensed retailer in one day: 28.5 grams of flower, 8 grams of concentrate.
The possession limit is the maximum you can legally have on your person / at your home at any time. Under Health & Safety Code §11362.1, adults can possess:
- Up to 28.5 grams of cannabis flower
- Up to 8 grams of concentrate
- Up to 6 live plants (at a private residence)
These limits are the same as the daily purchase limits. They operate independently. Possessing cannabis purchased over multiple days from multiple retailers is legal as long as the total on hand does not exceed the possession cap.
Medical patients have a higher possession allowance that mirrors their higher purchase allowance, up to 8 ounces of dried flower.
What Happens If Your Cart Exceeds the Limit
Licensed retailers are legally required to refuse a sale that would push you over your daily limit. Typically, one of two things happens.
At the register / checkout screen: The budtender / platform will flag the overage, remove items automatically / prompt you to adjust your cart. You will not be penalized. The sale simply cannot proceed as configured.
For delivery orders: If your cart exceeds the limit, the order confirmation will typically fail / the retailer will contact you to modify the order before fulfillment.
There is no legal penalty to the customer for attempting to purchase over the limit. The retailer catches it before the transaction completes. The risk falls on the retailer if they complete a non-compliant sale.
If you are unsure a specific combination of products puts you over the limit, ask your budtender. They are trained to work through this quickly.
Verified as of: September 2026 | Limits are set by the State of California, the Department of Cannabis Control, not by Canna Lala. Always check the DCC website (https://cannabis. Ca. Gov) for the most current regulations.
Frequently Asked Questions
How many grams of weed can you buy at once in California?
Adult-use customers can buy up to 28.5 grams (~1 ounce) of cannabis flower in a single day from a licensed retailer. Medical patients with valid documentation can purchase up to 8 ounces (226.8 grams) per day from the same retailer.
How much concentrate can you buy in California per day?
The daily limit for cannabis concentrates is 8 grams for adult-use customers, medical patients at the standard medical rate. A physician can authorize a higher concentrate allowance for medical patients who require it.
Can you place two cannabis orders in one day?
Yes. The combined total of orders at the same licensed retailer cannot exceed your daily limit. If you place two orders through the same dispensary, including in-store, online, / delivery orders, they count together toward the cap. Visiting two separate licensed retailers gives you a fresh limit at each location.
Do medical patients have a higher limit in California?
Yes. Medical patients with a valid physician’s recommendation / state-issued MMIC can purchase up to 8 ounces (226.8 grams) of flower per day, compared to 28.5 grams for adult-use customers. Concentrate, plant limits start the same as adult-use,. A physician can authorize higher amounts.
Is the purchase limit the same as the possession limit?
For adult-use customers, the numbers are the same, 28.5 grams of flower, 8 grams of concentrate,. The rules operate differently. The purchase limit is what you can buy from one retailer in a day. The possession limit is the maximum you can legally have on hand at any time, regardless of when / where it was purchased. Owning cannabis bought on multiple days is legal as long as your total on hand stays within the possession cap.
