Horn Farm Center, 4945 Horn Road, York, has scheduled upcoming programs. Preregistration is required by visiting http://www.hornfarmcenter.org, and more information is available by contacting 717-757-6441 or education@hornfarmcenter.org.

Critter Crawl: Salamanders will take place on Saturday, April 6, from 6 to 8 p.m. The program will focus on herpetology, the scientific study of reptiles and amphibians. The class will begin with a short presentation on safety protocols, ethical handling practices, a background on salamanders and their habitats, and local salamander identification techniques. Then, participants will take a walk around Horn Farm to look for salamanders. They should expect to get their hands dirty.

Participants should bring a headlamp or flashlight and wear waterproof boots; brightly colored, outdoor-appropriate clothing; a head covering to protect against ticks; and long pants and socks that are on the thicker side. The class will be held rain or shine, so people are also advised to bring a raincoat or poncho.

The program is recommended for people age 3 and up. Children under 12 must be accompanied by an adult.

There is a fee, with a discount for children. When registering on the aforementioned website, people should look under "Programs & Events" for "Classes & Workshops" and then "Youth & Family Programs."

Shoots & Leaves: Early Spring Foraging Walk will take place on Sunday, April 7, from 10 a.m. to noon. Attendees will learn how to find and gather wild food and medicine, such as dandelions, wild onion, ramps, morels, and nettles. Beginners and experienced foragers are welcome. There is a fee, and young children accompanying an adult may attend without charge.

Foraging Focus: Stinging Nettles will be held on Tuesday, April 9, from 5 to 7 p.m. Urtica dioica - commonly known as stinging nettles or burn hazel - has a long history of use as food, medicine, and natural plant cordage. Topics will include history, ecology, identification, and harvesting. There will also be tasting opportunities.

Attendees should bring a drawing pad and pencil for sketching and notes and a cup for tasting tea. They should dress for potentially muddy ground. Each participant will receive fresh stinging nettle leaves for tea preparation at home.

There is a fee, and young children accompanying an adult may attend without charge.