Maryland recreational limit: 1.5 oz flower or equivalent per transaction. Medical 30-day supply set by certifying provider. How the state enforces.
Maryland's recreational cannabis purchase limit per transaction is 1.5 ounces of flower (or its equivalent in other formats: 12 grams of concentrate, 750mg of edibles). Maryland medical patients can purchase larger 30-day supply amounts set by their certifying provider. ReLeaf Shop in Baltimore enforces these limits at the register, and the state-linked point-of-sale system blocks purchases that exceed them, including across same-day visits.
Under Maryland's adult-use cannabis statute, an adult 21 and older can purchase up to 1.5 ounces of cannabis flower or its equivalent in other product formats per transaction. The limit is a per-customer maximum that the dispensary point-of-sale tracks against your government-issued ID.
The 1.5-ounce flower benchmark is the headline number. The equivalencies below cover what happens when you're buying products other than flower, or a mix of products.
Maryland regulates the limit as a flower-equivalent system so the same total cannabis ceiling applies regardless of format:
Flower: 1.5 ounces (42 grams). The base unit.
Concentrate: 12 grams. The high-potency conversion. A gram of concentrate is treated as more flower-equivalent than a gram of bud because it contains substantially more THC.
Edibles: 750mg of THC total. Across all edible products in the cart. A single 100mg edible pack counts as roughly 13% of the daily edibles limit; you could buy seven 100mg edibles in one transaction and stay under the cap (700mg < 750mg).
Vapes and other infused products. Calculated by their THC content on a flower-equivalent basis.
A mixed cart (half an ounce of flower plus a couple of edibles plus a vape) counts against the total limit using the format-by-format equivalencies. The point-of-sale system runs the math automatically. Maryland Cannabis Administration publishes the regulatory framework.
Maryland medical patients operate under a different framework. Instead of a per-transaction limit, medical patients have a 30-day supply allocation set by their certifying provider during the certification visit. The supply amount is typically larger than the recreational per-transaction maximum, and the patient can purchase against it throughout the 30-day window.
The exact 30-day supply varies by patient and provider. A baseline supply for many Maryland medical patients is in the 4-to-5-ounce range for flower-equivalent across the month, with provider-specific adjustments for chronic-condition patients. The supply is tracked in the same MCA portal that issued the patient ID; the dispensary point-of-sale checks against the remaining balance at every visit.
For medical patients with higher demonstrated need, the certifying provider can adjust the supply at any point during the four-year certification window. For more on the certification process, our how to get a Maryland medical cannabis card post walks through the steps.
The most-asked question about purchase limits: can I make two separate visits to the same dispensary in one day and double up? The answer is no.
Maryland's point-of-sale system tracks purchases by customer ID across the state's dispensary network. The transaction limit is per customer per day, not per transaction. The system flags repeat-purchase attempts within the same day, even across different dispensaries.
What that means practically: a second visit to ReLeaf the same afternoon (or to a different Maryland dispensary across town) won't reset your limit. The cap applies to the calendar day in aggregate. If you've already purchased 1.4 ounces of flower-equivalent at one visit, your second visit's cap is effectively 0.1 ounce.
Medical patients face the same kind of tracking against the 30-day allocation: the supply count decreases with each purchase regardless of which Maryland dispensary made the sale.
The enforcement happens automatically at the register. When a budtender scans your ID and begins ringing up products, the system:
Checks your daily purchase history. Pulls any purchases logged against your ID earlier the same day.
Calculates the cart's flower-equivalent total. Sums the products in your cart using the format equivalencies above.
Compares against your remaining limit. Adult-use limit if you're shopping recreational, 30-day supply if medical.
Flags or blocks the transaction if over. If you're trying to buy past your limit, the system won't complete the sale until the cart is reduced to compliance.
The budtender will show you the cart total and the remaining limit. If you're close to the cap, they'll usually flag it before completing the sale so you can choose what to keep and what to drop.
If you hit your daily recreational limit, the next legal purchase window is the following day (Maryland uses a calendar-day reset). Medical patients hitting the 30-day supply have to wait until the 30-day window resets or work with the certifying provider to adjust the allocation.
For recreational customers who shop frequently, the cap rarely matters in practice — 1.5 ounces is a substantial single-day purchase. For medical patients with higher consumption, the 30-day allocation occasionally requires planning around the renewal date.
For the broader picture of how Maryland's cannabis laws apply to shoppers, our Maryland cannabis laws post covers the regulatory framework in detail. The medical vs. recreational comparison covers the practical differences between the two programs.
1.5 ounces of flower, 12 grams of concentrate, or 750mg of edibles per transaction for adult-use customers. Mixed-format carts count against the same flower-equivalent total. Medical patients operate under a 30-day supply allocation set by their certifying provider.
No. Maryland's point-of-sale system tracks purchases by customer ID across the state. The daily limit is per customer per calendar day, not per transaction. Visiting two dispensaries in one day or returning to the same dispensary later won't reset the cap.
Maryland uses a flower-equivalent system. Edibles count against the limit at 750mg of THC total per day; vapes and other infused products are calculated against the limit by their THC content. A mixed cart with flower plus edibles plus a vape counts against the same overall ceiling.
Yes. Medical patients operate under a 30-day supply allocation set by their certifying provider during the certification visit. The exact supply depends on the provider's notation but is typically larger than the recreational per-transaction maximum. The supply is tracked in the MCA portal.
The dispensary point-of-sale system will flag the cart and prevent the transaction from completing until the cart is reduced to compliance. The budtender will show you what's over the limit and help you decide what to keep. The next legal purchase window for adult-use customers is the following calendar day.
State sources: Maryland Cannabis Administration on purchase limits and program rules. ReLeaf coverage: Maryland cannabis laws, medical vs. recreational in Maryland, how to get a Maryland medical cannabis card, how to legally buy cannabis in Maryland, first-time dispensary visit.
This post is informational and does not constitute legal advice. Consult an attorney for case-specific questions about Maryland cannabis purchase limits and your individual situation.
