Scree
Garden
Scree deposits are aggregations of small, loose rock debris, found at the base of steep
inclines or cliffs. They are unique growing mediums for plants, and the conditions in
which these plants grow may in many ways be quite limiting. Besides the weather itself,
alpine plants rely on specific nutrients available in their specialized soils, where rocks
are continually being weathered and broken down through chemical and physical changes.
Alpine plants also rely on the weather and climate itself, as continual freezing and
thawing of the soil creates "frost heaves", areas of disturbed soil suitable for
new plant growth. This soil movement is also responsible for aeration. The length of
growing season also plays a critical role for alpine plants. With a short growing season,
and a nutrient deficiency in the young mountain soil, many alpine plants take on a stunted
appearance. Their low profile also helps to limit damage caused by wind.