Crabapple growing guide

Crabapples belong to the genus Malus and are closely related to domestic apples. Traditionally, the name "crabapple" refers to apples with fruit less than about 5 cm in diameter, although the distinction is largely horticultural rather than botanical. Hundreds of named cultivars have been selected for their outstanding flowers, colourful fruit, attractive foliage, growth habit and disease resistance.

While many people grow crabapples purely as ornamental trees, they are also surprisingly useful. Many produce edible fruit suitable for jellies, preserves, cider blending and ornamental displays, while most flowering crabapples are valuable pollinators for nearby apple trees. Their long flowering season and abundant nectar also make them excellent trees for supporting bees and other beneficial insects.

Crabapples perform best in:

Although they thrive in deep fertile loams, crabapples are remarkably adaptable. Fiala (1994) notes they tolerate a wider range of soils than many ornamental trees provided they are not permanently waterlogged.

Crabapples are highly suited to cool temperate and temperate climates throughout southern Australia.

Most ornamental crabapples have winter chilling requirements similar to traditional apples, making them best suited to regions that experience a distinct winter. They generally perform less reliably in tropical or frost-free climates with very low winter chill.

They tolerate winter frosts well and many are exceptionally cold hardy.

Crabapples prefer:

They will also grow successfully across a broader pH range (approximately 5.0–7.5) and are more tolerant of heavier clay soils than many ornamental trees, provided drainage remains good.

Avoid sites where water stands after rain or where soils remain permanently wet.

Plant during winter while trees are dormant.

Dig a hole wider rather than deeper than the root system so roots can spread naturally. Position the tree at the same soil level it grew in the nursery. Backfill with the existing soil and water thoroughly.

Apply mulch after planting, keeping it clear of the trunk.

For detailed instructions, see our Care & Planting Instructions.

Established crabapples tolerate moderate dry periods better than many flowering trees.

However:

Trees growing in sandy soils require more frequent watering than those in heavier loams.

Crabapples are not heavy feeders.

Apply compost annually.

Avoid excessive nitrogen, which encourages vigorous leafy growth at the expense of flowering.

Maintain a 5–8 cm layer of organic mulch around the root zone.

Benefits include:

Keep mulch several centimetres away from the trunk to prevent collar rot.

One of the greatest attractions of crabapples is their spectacular spring blossom.

Depending on variety, flowers may be:

Flowering generally occurs from September to October in southern Australia, with individual cultivars varying slightly.

Many cultivars flower so heavily that branches are almost hidden beneath blossom.

Following flowering, fruits develop through summer before colouring in late summer and autumn.

Fruit may be:

Some cultivars retain their fruit into winter, providing long-lasting ornamental value and food for birds.

Fruit size varies from about 1 cm to almost 5 cm depending on the variety.

Harvest depends on the intended use. For cooking or preserves, fruit is generally picked from late summer through autumn (February–May) depending on the cultivar and climate. Many ornamental varieties are deliberately left on the tree for their winter display.

Most flowering crabapples produce abundant viable pollen and are regarded as excellent pollinators for domestic apples.

Because flowering periods vary between cultivars, choose crabapple varieties that flower at the same time as nearby apple trees.

In commercial orchards, specially selected crabapple pollinisers are widely used to improve apple pollination.

Table above: Flowering times of some crabapples and apples (from DPIRD based on Orange in NSW).

Crabapples are incredibly versatile. They can be grown for:

The colourful fruit is also prized for decorative autumn and winter displays.

For the vase, crabapples typically last about 7 days. If picking stems for blossom, choose stems where about 25% of the blossom is open and remove the foliage from the bottom third. If picking for the fruit, strip most of the leaves. Stems can be picked for foliage when the leaves are leathery. 

Crabapples can be useful trees in a firewise garden when positioned and maintained appropriately.

Most crabapples require only light pruning.

Remove:

Avoid heavy routine pruning, as the natural branch architecture is one of the tree's greatest ornamental features.

Large pruning cuts should be made correctly to promote rapid healing.

Crabapples are generally robust, especially modern disease-resistant cultivars.

Potential problems include:

Good air circulation and sanitation reduce disease problems.

Many smaller or naturally compact crabapple cultivars can be grown successfully in large containers.

Use:

Container-grown trees may require occasional root pruning or repotting after several years.

Yes. Nearly all crabapple fruit is edible, although flavour varies considerably. Some are pleasantly tart while others are quite astringent. Many are excellent for jelly, preserves and cider.

Most flowering crabapples are excellent pollinators for apples, provided their flowering times overlap.

Yes. Crabapples are deciduous trees with attractive autumn colour before winter leaf fall.

Yes. Their flowers provide nectar and pollen for bees and other beneficial insects, while the fruit feeds many bird species through autumn and winter.

Depending on cultivar, mature size ranges from about 2–8 m tall, with upright, spreading or weeping forms available.

Many crabapple cultivars have received the Royal Horticultural Society Award of Garden Merit (AGM) for outstanding garden performance. Examples include cultivars such as Malus 'Golden Hornet', 'John Downie' and several others. Individual cultivar pages on our website identify AGM recipients where applicable.

Discover flowering crabapples selected for outstanding blossom, colourful fruit, attractive form and reliable garden performance.

Make sure you never mix up your plants! Add an engraved label to your new order—or grab custom-engraved labels if your plants are already in the ground. These durable markers make it easy to remember which plants are where. Happy gardening!

Images: Copyright Heritage Fruit Trees