If you do not know your zone you can find it by clicking on the " USDA Cold Hardiness Zones" link here or above. For more on stretching your cold hardiness zones see the " "Growing on the Edge Growing Guide". Our zones do not always agree but we try to use our own experience as to what can be depended on to return or have known reputable gardens and or horticulturists to reliably grow that plant in zones that are usually colder but sometimes warmer than what other resources have available. Each zone is separated by 10 oF and the map was updated in 2012. And these are averages, here in zone 8B ('A' represents the colder half of a zone and 'B' represents the warmer half of the zone and they are separated by about 5 oF) we have seen single digits but that is the exception but should be noted by the daring gardener. USDA Cold Hardiness Zones were established to give gardeners, horticulturists, farmers, nurseries, and landscape architects a universal way to describe where a plant will survive with regard to average winter lows for a region. Under poor growing conditions plants may be slightly to significantly smaller, whereas excellent growing conditions can produce larger more vigorous plants. Parentheses are used to indicate that the plant can potentially reach that dimension, although the sizes outside of the parentheses tend to be more typical. Feet are represented by a single quote and inches by a double quote. This is the average expected mature height by width in feet or inches. Photos courtesy of Terra Nova Nurseries, Inc., all rights reserved. Allen Armitage in his Herbaceous Perennial Plants, 4th Edition states that he " puts these plants on the A list for shady areas." Pink Skyrocket Foam Flower is an RHS Award of Garden Merit winner. The flowers are reported to be fragrant and are likely pollinated by smaller bees. They will prefer a moist soil with ample organic matter and average or better drainage. Pink Skyrocket Foam Flower is an easy and rewarding low, stoloniferous (think Strawberry plants), semi-evergreen groundcover that is shade tolerant and will likely need shade in areas with hot summer climates. In fall and under shade, the foliage becomes a deep shiny black and in sunnier sites it takes on deep bronze tones. The flowers are held just above the palmate bluish-green to green foliage with each lobe displaying a black to burgundy main vein. This wonderful low groundcover produces dense cone-shaped, upright flower spikes with red stems in mid to late spring, with some flowering later in the season, and are composed of tiny ball-shaped shrimp-pink buds that open to display the tiny white flowers.
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