We do not permit foraging within in the Milwaukee County Parks System per Milwaukee County Ordinance 47.08
"At the end of the day, Parks natural areas provide the last sanctuaries for plants, wildlife, fungi, etc. in a heavily urbanized county. Realistically, all of our native specie populations have been reduced by over 90% in the last 150-years as the county has been urbanized. It would not be good conservation practice to let people exploit what little is left. Especially because there are a large number of state properties in SE WI where foraging is allowed, and those sites are within easy driving distance for Milwaukee County residents."
-Brian Russart, Natural Areas Supervisor
47.08. - Injury to, destruction, or removal of public property.
(1)Destruction of property.
(a)No person shall climb any tree, or pluck any flowers or fruit, wild or cultivated, or break, cut down, trample upon, remove, or in any manner injure or deface, write upon, defile or ill use any tree, shrub, flower, flower bed, turf, fountain, ornament, statue, building, fence, apparatus, bench, table, official notice, sign, bridge, structure or other property within any park or parkway.
(b)No person in any park or parkway shall remove any device for the protection of trees for shrubs, nor shall any such person fasten a horse or other animal next to any tree, shrub or grass plot, which may become damaged by the action of the animal.
(2)Removal of ice or sand prohibited. No person shall take ice from any stream or lake within any park or parkway, nor remove any sand therefrom, or from the shores thereof, without a written permit of the park commission.
(3)Reward. Any person who shall give information to the district attorney of the county, or to the sheriff, deputy sheriff, or to any law enforcement officer of said county, leading to the apprehension, arrest and conviction of any person(s) personally observed by him/her to have caused injury to, destroyed or removed any public property, as stated under subsections (1) and (2) hereof, shall be paid a reward of twenty-five dollars ($25.00).