Maryland · Park trail

Deerfield Nature Trail Stop 11: Japanese Barberry

in Maryland · centroid 54 mi from Baltimore

Japanese barberry are an invasive plant species in Catoctin Mountain Park. The throny shrub spreads easily with the help of humans from being carried along shoes. It was first introduced in the 1860s/1870s as an ornamental shrub and escaped to the wild where it tolerates shade, severe drought, and extreme winters.

Barberry also is prime habitat for ticks which are vectors for lyme disease.

States: Maryland
Trail type: Park trail
Centroid nearest city: Baltimore, MD · 54 mi · ~1.5 hr drive
Centroid coords: 39.6606°, -77.4955°

About Catoctin Mountain Park

Park

This trail is inside Catoctin Mountain Park, a park managed by the U.S. National Park Service. Conditions, road status, trail closures, and reservation requirements are published on the park's NPS page — check it before driving in, especially in winter or during major weather events.

Official NPS trail page: https://www.nps.gov/places/deerfield-nature-trail-stop-11-japanese-barberry.htm

Park homepage: https://www.nps.gov/cato/index.htm

Plan your hike

Practical notes

Maps + permits: long-distance trails like this often require permits for through-hiking, backcountry camping, or specific sections (especially in National Parks). Check with the maintaining organisation listed above and the relevant land manager before booking travel.

Water + supplies: water sources vary seasonally on most U.S. trails. Carry a filter and consult current trail-condition reports — through-hiker journals (PCT-L, AT Reddit, etc.) and the maintaining organisation publish regular updates.

When to go: hiking seasons vary widely with elevation, latitude, and snowpack. Through-hikers traditionally start the AT in March-April (Springer northbound) and the PCT in late April (Campo northbound). High-elevation western trails (CDT, JMT, Wonderland) generally aren't passable until July.

If you've hiked Deerfield Nature Trail Stop 11: Japanese Barberry and have current notes (water sources, trail closures, permit changes), tell us at /contact — we update pages as we learn.

Stay nearby

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Driving in? The nearest documented metro is Baltimore, MD — 54 miles away (~1.5 hr drive). See accommodation in Baltimore on Booking.com → RoamFound earns a small commission if you book through this link, at no extra cost to you. How we handle affiliate links.