Irish Hills Exploration

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04-16-2017 1:00 pm - 4:00 pm
Irish Hills Trailhead
Address: 1691 Madonna Rd, San Luis Obispo, CA 93405, USA

Sunday, April 16th, 1:00 p.m

Join us for a plant walk from the Madonna Road trailhead (southwestern terminus of Madonna Rd.) into the upper reaches of the Irish Hills Open Space.

The vast majority of soils in this area are derived from serpentine, which is a metamorphic rock, high in magnesium and iron, while low in calcium, phosphorus, and potassium. The excess magnesium in combination with low levels of calcium, phosphorus, and potassium create a stressful environment for plant growth, and therefore inhibit the growth of the vast majority of both native and introduced species. The unique assortment of plants that do grow in the Irish Hills and on other serpentine-based outcrops surrounding San Luis Obispo, make for an exceptional mixture, which we will see in bloom on this walk. A plant list will be provided.

The length is 5 miles, 700 ft. elevation gain, 3 hours. Be sure to bring water, food, sturdy shoes, sunscreen, a hat, and layered clothing, as needed.

Contact: Bill Waycott, (805) 459-2103, bill.waycott@gmail.com.

Rain cancels