• Kendall Hills in summer bloom by Jeffrey Gibson

    Cuyahoga Valley

    National Park Ohio

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  • Trail Closures

    Towpath Trail is closed from Mustill Store to Memorial Parkway for riverbank reinforcement. Detours posted. Closure will last 1 - 4 weeks into August. Valley Bridle Trail south of SR 303, across from golf course, is collapsed by river. Hard closure.

  • Road Closures

    Quick Rd is closed from Akron Peninsula Rd to Pine Hollow Trailhead in Peninsula, from Wednesday, 7/16, for 6 weeks. Detours posted. Hines Hill Rd is closed from Tuesday, 7/29 through Tuesday, 8/12 for resurfacing from I271 to the Boston Township Line. More »

  • Riverview Road Repaving and Closure

    Riverview Rd is being repaved from the Cuyahoga-Summit Cty line to Peninsula through Mon, 9/15.Road is open with single lane closures. Riverview Rd is closed from Boston Mills Rd to the Cuyahoga Cty line starting Mon, 7/14 for for 3 weeks. Detours posted. More »

  • Brandywine Creek Foot Bridge Closed

    The footbridge that crosses over the Brandywine Creek on the Brandywine Gorge Trail is closed due to damage sustained during a recent storm. The trail remains open but there is no detour. Visitors will need to backtrack to get back to parking lot. More »

Garlic Mustard

Garlic Mustard - Alliaria petiolata

General Description
This is a biennial herb, meaning that it completes its life cycle within two years. Habitat ranges from moist ravines to dry roadsides, from forest edges and interiors to floodplains. Garlic mustard out-competes native spring wildflowers for light, nutrients, and water.

Identification
First-year plants exist as a rosette of kidney-shaped, coarsely serrated leaves. Crushed leaves and stems smell of garlic. Second-year plants form a shoot, which flowers in the spring. These mature plants reach 2 to 5 feet in height and produce clusters of cross-shaped, small, white flowers.

Origin
Garlic mustard came to the Unites States from Europe, accompanying settlers who used it for food and medicinal purposes.

How It Spreads
A second-year plant may produce and disperse thousands of seeds. White-tailed deer may contribute to its spread by selectively eating only native wildflowers and leaving garlic mustard untouched.

Control Methods
From May through June, plants should be pulled before seeds and flowers develop. If pulled before flowering, plants can be left on site to decompose. If plants are pulled after flowering, they should be bagged and removed. Spraying plants with glyphosate is effective during spring and fall when most native vegetation is dormant, yet garlic mustard is green. Spray when air temperatures are above 32ºF.

Did You Know?

Dragonfly image by NPS volunteer John Catalano.

Dragonflies and damselflies look almost alike while flying. However, if you wait until they land, dragonflies lay their wings to the side while damselflies lay them back and above their bodies.