COLUMBUS, Ohio — Ohio consumers face new limits on recreational cannabis purchases under rules that took effect Monday, Oct. 5, including caps on vape cartridges, edible servings and the number of cannabis plants or seeds sold in a package. The Ohio Division of Cannabis Control adopted the restrictions, which apply to a range of products and could require dispensaries to alter or remove some offerings. State law gives the agency authority to add cannabis regulations to the Ohio Administrative Code without a separate vote by lawmakers. Customers may buy no more than three vape cartridges or devices at a time. Each may contain up to 2 grams and no more than 90% THC. The rules also define a vape serving as one inhalation lasting two seconds. Recreational flower — dried cannabis plant material commonly smoked — is limited to 1 ounce, or 28.3 grams, per package. Many dispensaries already sold flower in packages no larger than that, so the new cap may have less effect on those stores. Edibles, including gummies and chocolates, and cannabis-infused drinks may not contain portions exceeding 10 milligrams. Other product limits include 50 milligrams per patch, capsule or pill; 10 milligrams per oral pouch or strip; and 30 milliliters per package of oral drops or sprays. Cannabis-infused cosmetics are capped at 3 ounces. A package of cannabis clones, live plants or seeds may contain no more than six. Ohioans are already prohibited from growing more than six plants in a household. That limit was reduced from 12 plants in a law change that took effect in March. The new rules also set a limit for medical cannabis edibles and beverages: 55 milligrams per serving. Previously, those products had no serving-size cap under the rules described by the state. The restrictions arrive after broader changes to Ohio’s recreational cannabis law took effect in March. The new limits are regulatory rules adopted by the division rather than another legislative change. Howard Schacter, a spokesperson for Thrive Dispensaries in Tiffin and Columbus, said the company is working with its brand partners to keep products compliant and is exploring discounts where permitted. The market figures underscore the potential reach of the changes. In the week of Sept. 19, the most recent week of state data available, Ohioans spent more than $11.6 million on recreational flower, over $7.7 million on vapes and more than $3.8 million on edibles.