Sorbus aria (Whitebeam) is a small-medium sized British native, which makes a fine ornamental garden, park or street tree. It is generally a very undemanding tree which tolerates wind, heat, drought and urban situations very well. It grows best on lime rich soils, and will thrive on chalk.
The leaves are dark green on the upper surface, with a silver-white underside. White flowers are produced in May, followed by orange-red persistent fruits in September. The Autumn colour is yellow-brown. (info source: deepdale-trees.co.uk)
Genus - Sorbus
Species - Aria
Common name - Whitebeam Mountain Ash
Pre-Treatment - Required
Hardiness zones - 5 - 8
Height - 30'-50' / 9.1m - 15.2m
Spread - 25'-30' / 7.6m - 9.1m
Plant type - Tree
Vegetation type - Deciduous
Exposure - Full Sun, Partial Sun, Partial Shade
Growth rate - Medium
Soil PH - Acidic, Neutral, Alkaline
Soil type - Light (sandy), medium (loamy) and heavy (clay)
Water requirements - Average, moist
Landscape uses - Ornamental garden, park or street tree
Germination rate - 88%
Bloom season - Late Spring, Early Summer
Leaf / Flower color - Green / White
|Germination||1. Soak the seeds overnight in warm water. Mix the seeds with just a little bit moist vermiculite or moist sterile soil. Place the seeds in airtight plastic bag and store them in the refrigerator for at least two months. |
2. Sow 1mm deep in the soil and keep moist in bright and warm place till teh germination.
2. Select a planting site for seeds outside in full sun, as they do not tolerate shade. This tree prefers fertile soil, but can tolerate poor soil. Mix sufficient peat moss into the soil to lower its pH to between 4.7 and 6.0.
3. Scatter the seeds thinly over the planting site in early fall or winter. Press the seeds lightly onto the soil without covering them.
4. Water the seeds with 1 to 2 inches of water per week, beginning after the last expected frost. The seedlings require consistently moist soil while growing, and the mature trees do not tolerate drought.
Seedlings do not generally require special protection from insects or disease.(source: ehow.com)