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Sorbus Eastern Promise Options Explained
125-150cm: 5-9L pot.
150:180cm: 9-12L pot, Half standard.
180-240cm: 12-18L pot, Half standard.
A small, upright, spreading tree with many attractive features, Eastern Promise (Sorbus 'Eastern Promise') has delightful fern-like leaves producing excellent autumn colours. Furthermore, large bunches of spectacular deep rose-pink berries hang from its branches.
A medium-height tree, so expect a height of up to 6 metres (20 foot) after 10 years.
Ornamental Tree Roots In The Shade e.g. Behind A Fence
It is more important that that foliage (posh term for leaves) receives the sunlight than the roots. So if the canopy of your ornamental tree can sunbathe but the bottom of your tree thinks there has been a nuclear winter then that is ok. You might want to ensure you have good drainage as water and no sun is the start of algae and other such issues.
Do I Need To Stake My Ornamental Tree?
Our article on Tree Staking should help guide you.
Planting In The Corner Of A Garden
Air and light is reduced in this location which could promote fungus and bacterial issues. If the corner is of the house and a fence then you also have leeching issues to contend with from cement and wood preservatives. Also when it rains, that area would experience higher water levels so we advise against it unless the plant is very hardy.
Sorbus Not Flowering
Sounds like it might need a fertilizer. Nitrogen encourages leafy growth, often at the expense of flowers and fruit. Select a fruit tree specific fertilizer, or use a fertilizer that promotes flowers, such as "0-10-10" or "15-30-15." The numbers represent the amount of nitrogen, phosphorus and potassium contained by the fertilizer. Berry production does vary each year due in to weather conditions.