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Thuja Occidentalis Smaragd “Emerald”

Thuja Occidentalis Smaragd “Emerald”

Thuja Occidentalis Smaragd “Emerald” is a neat hedge plant with a dense, tidy habit.

It grows into a pyramid of bright green leaves. The plant is resistant to cold, and it is ideal for small gardens.

If you are looking to create privacy screen and want to surround your garden with aesthetic beauty, then Thuja Smaragd “Emerald” is a perfect choice.  The plant is easy to maintain and grows well in different types of soil. Thuja Smaragd “Emerald” requires room to grow; therefore, they should not be planted too close or near other trees. The foliage assumes the shape of flat sprays where the needles look like they’re covered in green scales.

Growing Thuja Smaragd “Emerald”

These tall evergreen conifers are usually planted in rows. The plants remain evergreen throughout the year. They grow to a height of 365 cm (and can even grow up to 7m) at maturity, with a width spread of 1.5 to 2m. They also tend to fill out the ground; therefore, they don’t need facer plants in front.

Why you should grow Thuja Smaragd “Emerald”

They are easy-to-grow evergreen conifers that mature just at the right size. When grown under ideal conditions, Thuja Smaragd “Emerald” can live up to 30 years. Here are more reasons why you should use this plant to grow your hedge:

  1. They are tough trees, resistant to ice and snow damage
  2. Drought tolerant and low maintenance
  3. Thuja Smaragd “Emerald” grows well in any yard. You don’t need to prune or shear to get a robust tree
  4. Gives your garden perfect, dense privacy
  5. You will fall in love with the fast-growing beauty that this plant gives your garden. It has soft, feathery foliage which maintains a deep green color throughout the year.
  6. Perfect hedge trees for tight spaces Thuja Smaragd “Emerald” has a tall, columnar shape which makes them the perfect hedge plants for smaller yards. They look fantastic at corners of your home where height is necessary to frame your house in a professional design
  7. Increase property value

The privacy plants will mature quickly, so you will have instant privacy in your garden, thus improving the value of your home

Where to plant

Thuja Smaragd “Emerald” grows well in different soil types but prefers moist, well-drained, neutral to alkaline soils. It does well in full sun or partial shade. However, it does not tolerate dry conditions.

Grows best in full sun, but would appreciate some light shade in the afternoon during hot summer months. Avoid planting in full shade as this will reduce foliage density substantially. You should also avoid exposed, windy areas.

How to plant

Plant young Thuja Smaragd “Emerald” plants in early spring to avoid the danger of frost and give them a whole growing season for root establishment before the winter season. Here are the steps for planting:

  1. Locate a planting area with full or partial sun. The soil should also be well-drained.
  2. Dig a trench twice the width and 1 or 2 cm deeper as the height as the clod. Dig compost manure into the base of the trench
  3. Position the clod in the trench and check its height to ensure that the top of the clod is slightly below ground level. If the trench is deeper, take the plant out of the trench and replace enough soil to reduce the height
  4. Backfill the trench with a mixture of compost and garden soil, firming with your feet or hands as you go. Water the plant deeply to settle any air pockets in the soil, and add more soil to dips that may appear
  5. Water the young plant regularly, ensuring that the soil remains throughout summer and spring. Check the soil after every few days and water when the top 15 cm of the soil dries slightly


Enrich the soil with homemade garden compost before planting. Keep young Thuja Smaragd “Emerald” plants well water until they establish. However, avoid overwatering.


For a thick privacy hedge, plant 2 to 3 Thuja Smaragd “Emerald” plants per meter. At this spacing distance, mature plants will be able to spread out slightly and at the same time prevent root crowding and competition of water and nutrients.

Care & Advice

Grow Thuja Smaragd “Emerald” in full sun. Although the plant can grow in partial shade, it is intolerant to full shade and will start turning brown, eventually dying due to lack of sunlight. Plant in well-drained soil and water the young plants deeply at planting. The soil might dry out before the next water application, but you should know that this species is not drought resistant and must be watered thoroughly during the growing season.

Feed the plants with a 10-10-10 fertilizer in early spring to stimulate growth and improve the plant’s health for the coming growing season. Feed again in mid-fall after the hot summer months have passed. However, you should avoid fertilizing during planting time. Only prune the sides of the privacy shrubs if branches become too long or when dead branches need to be removed. Don’t prune the top of the Thuja tree as this ruins its natural shape. You can, however, do this to control the height of the plant. If you are faced with an overgrowth, prune to give the plant a good shape.


  • Maintains evergreen color all-year round
  • Ideal for tight spaces
  • Low maintenance
  • We deliver fresh plants from the ground
  • We offer Advice

Should I buy Thuja Smaragd “Emerald”?

Thuja Smaragd “Emerald” is one of the best plants you can buy for hedging. The low maintenance plants only require pruning once a year to maintain its beautiful shape. Most importantly, when grown in optimal conditions, they can last for so many years, making them the ideal plants for people who are looking to grow a long-term hedge.

The screening plants grow well on any soil as long as it is well drained. However, it is intolerant to drought; therefore, make sure that you water the young plants regularly until they establish. If you are looking for the best quality Thuja Smaragd “Emerald” hedge plants for sale, feel free to contact us. We provide you with fresh plants from the ground.