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Why Summer Is the Best Time to Plant Trees in Your Garden

Why Summer Is the Best Time to Plant Trees in Your Garden

Warm soil and longer days make summer one of the best planting windows in Australia. Five tree picks that take to summer planting and grow away strongly through autumn.

EstablishmentPlanting TipsSummer PlantingTree Care

Most gardeners wait for cooler weather. But summer is one of the most effective planting windows in Australia if you pick the right tree and water consistently. Warm soil drives rapid root growth, and trees planted now have months of active growing weather before winter sets in.

Here's why summer planting works, plus five picks ideal for the warm season.

Benefits of Summer Planting

Warm soil triggers active root growth. Trees planted in summer settle in faster than autumn plantings that go into cool soil.

Longer daylight hours. More time for photosynthesis means more energy for the tree to grow new roots and shoots.

Stronger before winter. Summer-planted trees have established root systems by the time cold weather arrives, so they handle their first winter much better.

Soil microbial activity peaks in warm conditions. Healthy soil biology supports faster establishment and better long-term tree health.

What to Plant in Summer

Pick trees that love heat as their default condition. Olives, Brachychitons, Crepe Myrtles, evergreen Magnolias and native Banksias all take to summer planting. Avoid cool-climate picks like Japanese Maple or Ginkgo for warm-season planting.

Care Through Establishment

Water deeply twice a week for the first six weeks. After that, deep weekly water through the first summer. Mulch heavily to keep root zones cool and lock in moisture.

Skip fertiliser for the first three months. Roots establish best without a nutrient hit. Save feeding for the following autumn.

In 30°C and above weather, give an extra deep evening water the night before. Cover small trees with shade cloth on extreme days during the first month.

FAQ

Can you plant trees in the middle of summer in Australia? Yes, with the right tree and consistent watering. Choose heat-loving picks and water deeply twice a week for the first six weeks.

What is the best month to plant a tree in Australia? For deciduous trees, autumn or late winter. For evergreens and heat-loving species, early summer is excellent.

How long does a tree take to establish in summer? Six to twelve weeks for the root system to spread into surrounding soil. Full establishment takes a full growing season.

Final Thoughts

Summer planting is underrated. Pick the right tree, water consistently, and you'll have a tree that outperforms winter plantings within a year.

1. Olea europaea 'Manzanillo' (Manzanillo Olive)

Warm soil and summer sun mean strong root growth on Olives. Manzanillo settles in fast when planted now.

Type
Evergreen feature tree
Height
4-6m
Width
3-4m
Growth rate
Moderate
Foliage
Silver-grey year round
Flowers
Cream spring flowers
Form
Rounded sculptural
Conditions
Full sun, free-draining soil, drought tolerant
Maintenance
Low. Deep weekly water through the first summer
Best for
Summer planting feature trees, Mediterranean schemes

Why choose it

Loves warm soil and summer heat for fast establishment.

Perfect pair

Pair with a Lilly Pilly hedge for soft green privacy.

Tips for planting

Mulch deeply after planting to keep root zone cool.

A feature tree built for summer planting.

Shop Olea europaea 'Manzanillo'

2. Brachychiton populneus (Kurrajong)

Australian native built for summer planting. Kurrajong stores water in its trunk and races away in warm soil conditions.

Type
Evergreen native feature tree
Height
10-15m
Width
5-8m
Growth rate
Moderate
Foliage
Glossy green poplar-shaped leaves
Flowers
Cream and red bell flowers in summer
Form
Upright with swollen trunk base
Conditions
Full sun, free-draining soil, very drought tolerant
Maintenance
Very low
Best for
Native gardens, summer planting projects

Why choose it

Loves the heat and grows away strongly when planted in summer.

Perfect pair

Pair with a Banksia hedge for native bird-friendly layering.

Tips for planting

Deep water once a week during establishment.

Native, hardy, and ready for summer planting.

Shop Brachychiton populneus

3. Lagerstroemia indica 'Natchez' (Natchez Crepe Myrtle)

Already in full bloom in summer. Natchez plants and flowers in the same season, giving you the instant garden hit.

Type
Deciduous flowering feature tree
Height
6-8m
Width
4-6m
Growth rate
Fast
Foliage
Mid green summer leaves, orange-red autumn tones
Flowers
Large white panicles right through summer
Form
Vase-shaped with cinnamon bark
Conditions
Full sun, free-draining soil, very heat tolerant
Maintenance
Low
Best for
Summer planting, hot front gardens

Why choose it

Roots establish quickly in warm soil and flowers continue right through.

Perfect pair

Pair with a Bay tree hedge underneath for evergreen structure.

Tips for planting

Plant on overcast days. Water deeply twice a week for the first month.

Plant in summer, flower in summer, win the season.

Shop Lagerstroemia indica 'Natchez'

4. Magnolia grandiflora 'Coolwyn Gloss' (Coolwyn Gloss Magnolia)

Evergreen Magnolias respond beautifully to summer planting. Coolwyn Gloss holds its glossy leaves through transplant and grows away steadily.

Type
Evergreen feature tree
Height
5-7m
Width
2-3m
Growth rate
Moderate
Foliage
Glossy dark green with russet underside
Flowers
White fragrant flowers in summer
Form
Upright pyramidal
Conditions
Full sun to part shade, well-drained soil
Maintenance
Low. Deep water twice a week during establishment
Best for
Summer planting features, entries, courtyards

Why choose it

Evergreen Magnolias take to summer planting easily when watered well.

Perfect pair

Pair with a Murraya hedge below for fragrant layered planting.

Tips for planting

Shelter from strong westerly wind for the first eight weeks.

Polished evergreen feature, ready for warm-season planting.

Shop Magnolia grandiflora 'Coolwyn Gloss'

5. Banksia integrifolia (Coastal Banksia)

Australian native that handles summer planting in stride. Coastal Banksia loves warm conditions and rewards quickly with new growth.

Type
Evergreen native feature tree
Height
8-12m
Width
4-6m
Growth rate
Moderate
Foliage
Dark green with silver underside
Flowers
Yellow cylindrical flowers from autumn through winter
Form
Upright spreading
Conditions
Full sun, sandy or well-drained soil, drought and salt tolerant
Maintenance
Very low
Best for
Native gardens, coastal blocks, bird-attracting plantings

Why choose it

Brings native birds in droves and handles summer planting with ease.

Perfect pair

Pair with a Kurrajong feature tree for layered native canopy.

Tips for planting

Use native-specific low-phosphorus fertiliser only.

A native that loves a warm planting start.

Shop Banksia integrifolia

Compare at a glance

CultivarHeightWidthFormFoliageBest if you…
Olea europaea 'Manzanillo'
Manzanillo Olive
4-6m3-4mRounded sculpturalSilver-grey year roundSummer planting feature trees, Mediterranean schemes
Brachychiton populneus
Kurrajong
10-15m5-8mUpright with swollen trunk baseGlossy green poplar-shaped leavesNative gardens, summer planting projects
Lagerstroemia indica 'Natchez'
Natchez Crepe Myrtle
6-8m4-6mVase-shaped with cinnamon barkMid green summer leaves, orange-red autumn tonesSummer planting, hot front gardens
Magnolia grandiflora 'Coolwyn Gloss'
Coolwyn Gloss Magnolia
5-7m2-3mUpright pyramidalGlossy dark green with russet undersideSummer planting features, entries, courtyards
Banksia integrifolia
Coastal Banksia
8-12m4-6mUpright spreadingDark green with silver undersideNative gardens, coastal blocks, bird-attracting plantings