Product description
Are you at a loss on what to do with a boring vertical space in a small garden? The Autumn Spire Mountain Ash Tree is the answer to your dilemma! It grows to tall, upright but very compact shape and will fill the space with colour and all year round interest.
Autumn Spire Mountain Ash trees feature lovely mid-green leaves divided into many smaller leaflets. The foliage matures to a vibrant and awe-inspiring autumn display of burning red. Spring and summer see the appearance of clusters of pretty white flowers which turn into luscious bunches of bright mustard-yellow berries as the weather cools. The berries are a magnet for all types of wildlife and soon your garden will be filled with chirping birds and lovely fluttering butterflies. The berries can also be used by ambitious cooks to make a Rowan-style jelly or jam.
Your Sorbus aucuparia 'Autumn Spire' is an easy tree to grow. Plant in full sun, it is fully hardy and will tolerate most soil types, but does best in well-drained loamy or sandy soils. It is also ideal for in-city gardens as it is resistant to pollution. It will also do well in exposed or windswept sites. The tree has a tall upright and compact habit, reaching up to 4m with a spread of around 1m in 20 years.
Plan your garden and plant two as a decorative statement on either side of your garden gate. Plant one in a dull vertical space or plant many in a row along a boundary wall. For something different and thoughtful, it makes a great gift for a friend or loved one on a special occasion.
Plant specs, care guide & tips
Key features
Specifications
When to plant
Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
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Planting and period of interest times are general guidelines and may vary based on your location and conditions. For best results, consult local gardening resources.
Instructions
Top Tip
Prune Sorbus in late winter or early spring to remove dead, damaged, or overcrowded branches and to maintain a healthy shape. Avoid heavy pruning, as this can reduce flowering and berry production. Encourage wildlife to your garden by leaving the berries to ripen fully—they are a favourite for birds and add vibrant colour to your outdoor space during autumn. Regular care will keep your Sorbus tree thriving year-round.
How to Water
Water Sorbus deeply after planting and continue to water regularly during the first year to help establish strong roots. During dry spells, ensure the soil remains consistently moist but not waterlogged. Once established, Sorbus trees are relatively drought-tolerant but will benefit from occasional deep watering during prolonged dry periods. Water early in the morning or late in the evening to minimise evaporation and provide the tree with the moisture it needs.
How to Plant
To plant Sorbus, select a sunny or partially shaded spot with well-draining, slightly acidic to neutral soil. Dig a hole twice as wide and as deep as the root ball, ensuring the roots have enough room to spread. Position the tree so the top of the root ball is level with the surrounding soil. Backfill the hole with the removed soil, firm gently, and water thoroughly. Mulch around the base to retain moisture and suppress weeds, leaving a gap around the trunk to prevent rot. Space trees at least 3–4 metres apart to allow for mature growth.