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Thuja occidentalis 'Smaragd' shrub 30-40 cm C2

Emerald green arborvitae
Temporarily sold out

  • 30-40cm
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    Pot
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    Temporarily sold out
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Benefits according to our specialist
  • Evergreen
  • Hardy
  • Compact, narrow growth
  • Suitable for hedging
  • Usually stays green through winter
  • Does not tolerate prolonged drought
  • Does not tolerate persistently wet soil

Plant features Thuja occidentalis 'Smaragd' shrub 30-40 cm C2

Emerald green arborvitae


Description Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 | Emerald green arborvitae

Thuja 'Smaragd' shrub is an evergreen form of Thuja occidentalis 'Smaragd', also known as Emerald Green arborvitae. This product is supplied as a shrub, not as a standard tree. Its compact, upright and narrowly conical habit gives it a clear, close-knit outline in the garden. The green foliage usually remains green through winter, so the shrub keeps its colour when many other plants have lost their leaves. It can reach a mature height of about 4 metres; no mature width is specified. The name 'Smaragd' identifies the cultivar, while the shrub form describes the plant offered here. This distinction matters when choosing a plant for a particular garden use: the upright, narrow-conical outline is the feature to consider, rather than a standard tree shape. The flowers are inconspicuous and yellow-green, and the product data also describes the plant as fruit-bearing without giving further details. Thuja 'Smaragd' may suit a hedge, a specimen position or group planting. Its evergreen foliage and defined shape make it useful where a steady green presence is wanted in the garden. To explore the wider range, see Thuja.

Key features of Emerald Green arborvitae (Thuja occidentalis 'Smaragd') as a shrub

  • This is a compact, upright and narrowly conical evergreen shrub. Its green foliage stays green through winter in most conditions. The outline gives the plant a distinct form without needing to describe it as a tree.
  • Flowering is inconspicuous, with yellow-green flowers in March and April. The flowers are a small seasonal feature rather than a prominent display. No further details about their appearance are specified.
  • Choose a position in sun or partial shade. These are the stated light conditions for this Thuja 'Smaragd' shrub. Consider how the upright, narrow-conical shape will sit among the other plants and features in the garden.
  • For the soil, choose humus-rich, well-drained ground that remains slightly moist. Avoid prolonged drought and wet, poorly drained soil. This evergreen shrub is listed with other evergreen shrubs, but the soil conditions given here apply to this plant.

Uses for Thuja 'Smaragd' shrub in the garden

  • For a hedge, the shrub’s upright, narrow-conical habit provides a clear vertical outline. Its green evergreen foliage keeps that outline present through the seasons. The product information identifies hedge planting as a suitable use.
  • As a specimen, this Thuja 'Smaragd' shrub can be considered for a position where its compact, defined shape can be seen. Its evergreen green foliage adds a consistent colour to the garden, including in winter. No specific planting position or spacing is prescribed.
  • Group planting is another stated use. Several shrubs can bring the same upright, narrow-conical form into a garden scheme, while the evergreen foliage maintains a green presence. The product data does not specify a planting pattern or a number of plants.
  • The plant is listed as hardy to USDA zone 4, with a temperature indication of -34.4°C to -28.9°C. This hardiness information can help when comparing plants for a garden. No additional claim about performance in particular UK conditions is made.

The main garden value of this shrub is its green evergreen foliage and compact, upright, narrow-conical outline. Use it as a hedge, as a specimen or in group planting, choosing the role that best suits the shape you want in the garden.

Planting & care Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 (Emerald green arborvitae)

We would like to provide some tips on how to plant and care for a Thuja occidentalis 'Smaragd' shrub 30-40 cm C2. By following these tips, you can be sure to enjoy your Emerald green arborvitae for a long time.

Ideal placement of a Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 (Emerald green arborvitae)

Choose a sunny or partially shaded position; the foliage tends to stay denser and greener in good light. Plant in fertile, moisture-retentive but well-drained soil, and avoid sites that become waterlogged or dry out for long periods. A position sheltered from strong, drying winds is helpful, particularly for young plants.

How do I plant a Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 (Emerald green arborvitae)?

Plant in autumn or spring when the soil is workable and not waterlogged or frozen. Prepare the soil by removing weeds and loosening it, then set the shrub at the same depth it was growing in its container and firm the soil gently around the roots. Water thoroughly after planting and keep the soil evenly moist while the shrub establishes; allow enough room for its eventual size.

Pruning a Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 (Emerald green arborvitae)

This naturally narrow, upright shrub usually needs little pruning. If needed, lightly trim the sides or remove damaged growth in late spring or summer, taking care not to cut back into bare, old wood, as it may not regrow there. Avoid hard pruning and cutting into the top if you want to retain its natural shape.

Watering a Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 (Emerald green arborvitae)

Water thoroughly after planting and keep the root area from drying out during the first growing season. Once established, water during prolonged dry spells, especially if the shrub is growing in sandy soil or a container. Avoid persistently soggy soil, which can damage the roots.

Fertilising a Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 (Emerald green arborvitae)

In spring, apply a moderate amount of general-purpose or evergreen shrub fertiliser, following the product label. A mulch of compost or well-rotted organic matter can help improve the soil and retain moisture. Avoid excessive feeding, as this can encourage soft growth and is rarely needed in fertile soil.

The characteristics of a Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 (Emerald green arborvitae)

This evergreen conifer has dense, bright green foliage and a naturally narrow, upright shape, making it useful as a specimen shrub, a screen or a vertical accent in a border. It can also be clipped lightly, but is generally less suited to a very narrow hedge than its columnar shape might suggest because it needs enough room to develop. Foliage can brown in prolonged drought or after harsh winter weather, so avoid dry soil and exposed, drying positions.

Separating/dividing a Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 (Emerald green arborvitae)

Dividing is not suitable for this woody shrub. If you want to propagate it, semi-ripe cuttings are a more usual option, though establishment can take time. For most gardeners, planting a nursery-grown shrub is the simplest approach.

Frequently Asked Questions Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 (Emerald green arborvitae)

What will be the height of Thuja occidentalis 'Smaragd' shrub 30-40 cm C2?

It commonly reaches around 4–6 metres in height when left untrimmed, although growth conditions and pruning affect its eventual size. Its upright, narrow habit means it is usually taller than it is wide.

What will be the width of Thuja occidentalis 'Smaragd' shrub 30-40 cm C2?

It typically spreads to around 1–1.5 metres wide, though mature plants can vary with growing conditions and pruning. Allow room for the shrub to develop rather than planting it tightly against a wall or path.

Which soil type is most suitable for the Thuja occidentalis 'Smaragd' shrub 30-40 cm C2?

It grows best in fertile, moisture-retentive soil that drains well. It can tolerate a range of soil types, but prolonged waterlogging or very dry soil can cause problems.

What is the ideal positioning for the Thuja occidentalis 'Smaragd' shrub 30-40 cm C2?

Choose a sunny or partially shaded position for the best growth and dense foliage. Shelter from strong, drying winds and avoid sites where the soil remains waterlogged.

What is the flowering colour of the Thuja occidentalis 'Smaragd' shrub 30-40 cm C2?

Its flowers are small and inconspicuous, so they are not a significant ornamental feature. The main attraction is its evergreen, bright green foliage and upright shape.

What is the flowering time of the Thuja occidentalis 'Smaragd' shrub 30-40 cm C2?

Flowering is inconspicuous and is not usually a reason to grow this shrub. Small cones may also form, but its ornamental interest is primarily its foliage.

Is the Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 hardy?

It is generally hardy in UK gardens. Young plants may benefit from shelter while establishing, and plants in containers are more exposed to cold and drying winds than those in the ground.

Is the Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 evergreen?

Yes, it is an evergreen conifer and retains its foliage throughout the year. Foliage may become damaged or brown in severe weather or prolonged drought.

What is the growth strength of the Thuja occidentalis 'Smaragd' shrub 30-40 cm C2?

It has a moderate, generally steady growth rate and is not usually considered a fast-growing conifer. Its narrow, upright habit makes it useful where a more restrained shape is wanted.

What kind of bark does the Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 have?

It develops fibrous, reddish-brown bark on its woody stems. The bark is not usually a major ornamental feature, as the dense evergreen foliage is more prominent.

Is Thuja occidentalis 'Smaragd' shrub 30-40 cm C2 poisonous?

Warning: This plant may contain toxic substances. Ingestion of any part of the plant or contact with its sap may pose health risks, particularly to children and pets such as cats and dogs. We recommend keeping the plant out of reach of children and animals and wearing protective gloves when carrying out maintenance work, such as pruning or transplanting. If poisoning is suspected, seek immediate medical or veterinary advice. This information is provided as a general safety notice.

It can be grown in a large, sturdy container with drainage holes, but its eventual size makes long-term container growing less straightforward than planting it in the ground. Container-grown plants need regular watering and occasional feeding, and may need protection from severe cold and drying winds. Repot when the roots outgrow the container.
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Buy Thuja occidentalis 'Smaragd' shrub 30-40 cm C2

Thuja occidentalis 'Smaragd', also known as Emerald Green arborvitae, is a compact, densely branched shrub with an upright, narrow conical habit. Evergreen foliage generally keeps its green colour through winter, making it suitable for hedging, group planting or as a specimen. Order this versatile thuja for your garden.
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