When is the best time of year to undertake tree planting?

Planting trees adds beauty and character to any landscape, enhances biodiversity and creates a healthy, thriving outdoor space. However, planting trees at the right time is important for them to establish roots effectively and thrive long-term.

Planting bare root trees

The optimal time to plant trees is between November and March. This period marks the start of the bare-root planting season.

Bare root trees are trees grown in the ground that are lifted from the soil and sold without containers or soil around their roots. These trees must be planted between November and March. This is when the tree is dormant so the roots are not actively drawing water and nutrients from the soil and are therefore less sensitive to outside exposure. This period of reduced metabolic activity makes bare root trees less sensitive to being moved or replanted, reducing the risk of transplant shock.

In addition, the weather conditions between November and March are typically colder and wetter, which benefits newly planted bare-root trees. The cool, moist conditions minimise the risk of roots drying out and provide a gentle, consistent water supply for the roots to start establishing in the new soil during their dormancy phase. When spring arrives, the trees emerge from dormancy and start growing again.

Planting containerised trees

Containerised trees, supplied in containers, offer more flexibility, as they can be planted year-round. However, when planted outside the November-to-March window, these trees require immediate and regular watering.

During April and October containerised trees need regular and immediate watering after planting to prevent dehydration and stress due to higher temperatures and increased evaporation rates. If you’re planting in spring or summer, be prepared for a diligent watering and aftercare schedule to ensure the tree establishes well.

Benefits of planting trees during the dormant season

Planting trees during the dormant season has several advantages:

Reduced stress on roots

With fewer demands on the root system, trees endure less stress from transplantation and are better equipped to establish themselves in new soil.

Higher moisture availability

Colder months mean more rain and naturally higher soil moisture levels, reducing the need for supplementary watering.

Gradual root establishment

The roots gradually establish during dormancy, so when the tree begins to actively grow again in spring, it’s well-anchored and ready to thrive.

Key takeaways for successful tree planting

November to March offers the best conditions for planting trees, allowing them to root and grow with minimal stress. Consider reserving containerised trees for times when regular watering is manageable. By timing your planting thoughtfully, you set your trees up for a strong start and healthy growth in their new environment.

As November begins, this season offers the perfect opportunity to plan your tree-planting projects. There’s no better time to plant with cooler, wetter weather ahead!