When planting Thuja hedge plants, whether container-grown or root balled plants, it is crucial to follow some key guidelines to ensure optimal growth and health.
First, select a site that offers well-drained soil and adequate sunlight, as these conditions promote vigorous growth. When preparing the planting area, dig a trench that is approximately twice the width of the root ball and equally deep.
This provides ample space for the roots to expand and establish themselves. Space the plants appropriately, typically around 60 to 90 cm apart, to allow for future growth without overcrowding.
Before planting, amend the soil with organic matter such as compost to improve fertility and drainage. Place each Thuja plant in the trench, making sure the top of the root ball is level with the ground surface.
Backfill the trench with soil, firming it gently around the base of each plant. Water thoroughly after planting to settle the soil and eliminate air pockets around the roots.
Consistent watering, especially during the first growing season, is vital for establishing a robust root system. Mulching around the base of the plants helps to retain moisture and suppress weed growth.
Regular trimming will encourage dense foliage and maintain the desired shape of the hedge.
By following these planting tips, you can ensure that your Thuja hedge thrives and provides years of beauty and practicality in your garden.
When to Plant Thuja Hedging
The best time to plant Thuja hedging is during the cooler seasons of the year, typically in early spring or early autumn. Planting during these periods allows the plants to establish their root systems in mild conditions before the stress of summer heat or winter frost.
Early spring planting benefits from the increased possibility of rain, promoting strong initial growth, while autumn planting allows roots to develop before the ground freezes.
Thuja Growth Rates
Thuja hedging plants are known for their impressive growth rates, often reaching heights of up to 60 cm per year under favourable conditions. While Thuja hedging plants are known for their impressive growth rates, some varieties like Thuja Brabant are slightly slower growing, making them easier to maintain.
This rapid growth makes them an ideal choice for those needing to establish a privacy screen or windbreak quickly.
The growth rate can be influenced by several factors, including soil quality, climate, and the level of care provided, such as watering, fertilising, and pruning.
Thuja Hedge Spacing Distances
Please refer to our plant spacing chart below for the correct distances to space your Thuja hedge plants.
| Plant size | No. Plants per metre | Plant spacing |
|---|
| Instant Hedging 175-200cm | 1 per metre | 100 cm apart |
| Pot Grown 125-150cm | 2 per metre | 50 cm apart |
| Root Balled 100-125cm | 3 per metre | 33 cm apart |
| Root Balled 125-150cm | 3 per metre | 33 cm apart |
| Root Balled 150-175cm | 2 per metre | 50 cm apart |
| Root Balled 175-200cm | 2 per metre | 50 cm apart |
Preferred Soil Types & Positions
Thuja plants thrive best in well-drained, fertile soils that are rich in organic matter. Each particular species may have unique care requirements.
They can adapt to a range of soil types, including loam, sandy, and clay soils, as long as there is good drainage. Heavy clay soils may require amendment with organic matter or sand to improve drainage.
For optimal growth, it’s important to plant Thuja in a position where they will receive full sun to partial shade. While they can tolerate some shade, too much can limit their growth potential and produce sparse foliage.
Full sun exposure will encourage denser foliage and a more vigorous growth habit, ensuring that your hedge develops into a lush, green barrier.
When selecting a location, also consider the space needed for mature growth. Thuja hedges can become quite large if left untrimmed, so ensure there is adequate space for the hedge to expand both in height and width over time.
This foresight will prevent overcrowding and competition for nutrients and sunlight, which could weaken the plants.