Care Instructions for Cryptomeria japonica Elegans Viridis, Green Japanese Cedar

Care Instructions for Cryptomeria japonica Elegans Viridis

The Elegant Green Japanese Cedar

Cryptomeria japonica 'Elegans Viridis' is a beautifully sculptural, slow-growing conifer known for its striking, feathery green foliage that changes to a rich, golden-brown hue during the colder months. With its upright, pyramidal form and soft, needle-like leaves, this cultivar makes an excellent addition to smaller gardens, borders, or as an eye-catching specimen tree. At Lakeside Tree Nursery, we are pleased to offer this elegant variety, and we?e here to guide you on how to care for your ?legans Viridis?to ensure it thrives in the British climate.

1. Planting Location

'Elegans Viridis' performs best when planted in a well-drained, fertile soil with a sunny to partially shaded position. While it can tolerate some shade, a sunnier spot will help bring out the best in its lush green foliage and ensure strong, healthy growth.

Soil: Prefers slightly acidic to neutral soil that drains well. Avoid planting in heavy, waterlogged soils, as these can lead to root rot. Loamy or sandy soils with good drainage are ideal.

Space: This cultivar grows slowly and will typically reach around 3 metres in height with a spread of 1.5? metres at maturity. For the best results, plant it about 1.5? metres apart from other plants, allowing ample space for it to develop its natural form.

2. Watering

While 'Elegans Viridis' is relatively drought-tolerant once established, it will thrive best with consistent moisture, particularly during dry spells.

Young Plants: Water regularly during the first year to help establish the root system. Keep the soil moist, but avoid waterlogging, which can lead to root rot.

Mature Plants: Once established, water deeply during dry periods. Aim to water once every 1-2 weeks, allowing the soil to dry slightly between waterings. Avoid letting the soil dry out completely, particularly during extended warm or dry spells.

3. Feeding

Cryptomeria 'Elegans Viridis' isn? a heavy feeder, but an annual feeding in spring will support healthy growth and vibrant foliage.

Spring Feeding: Apply a balanced, slow-release fertiliser in early spring, just before new growth begins. Organic compost, well-rotted manure, or a general-purpose feed will work well.

Avoid Over-Fertilising: Overfeeding can lead to excessive soft growth, which is more susceptible to frost damage. Stick to light, balanced feeding to maintain the plant? natural, compact shape.

4. Pruning & Maintenance

?legans Viridis?has a naturally attractive form, so pruning is generally minimal. However, a little maintenance will help keep it looking its best.

Light Pruning: Prune lightly in late winter or early spring to remove any dead, damaged, or diseased branches. This encourages healthier growth and better air circulation through the foliage.

Shaping: You can lightly trim the tree to control its shape, but avoid cutting back into older wood, as it may not regenerate well. Only prune the softer, newer growth to maintain its natural pyramidal form.

Deadheading: This cultivar doesn? produce flowers, so there? no need for deadheading. However, keeping the tree free of dead or discoloured foliage is recommended for an attractive appearance.

5. Winter Care

Cryptomeria japonica 'Elegans Viridis' is hardy in the UK and can tolerate typical winter conditions. However, younger trees or those in exposed positions may benefit from some protection during particularly harsh winters.

Frost Protection: Young trees (less than 2 years old) may require additional protection during cold spells. Apply a layer of mulch around the base to insulate the roots, and cover with horticultural fleece in extreme cold.

Winter Colour: During the colder months, ?legans Viridis?can take on a beautiful bronzed tint, adding visual interest to your winter garden. This seasonal change in colour enhances its year-round appeal.

6. Pests & Diseases

Cryptomeria 'Elegans Viridis' is generally pest-resistant but should be monitored for any potential issues, particularly in humid or overly damp conditions.

Root Rot: Like many conifers, ?legans Viridis?is susceptible to root rot if planted in waterlogged soil. Ensure the soil drains well, and avoid letting the roots sit in excess water.

Scale Insects: Scale insects can sometimes be found on conifers, but they are typically easy to manage. If you spot them, you can gently remove them with a soft brush or treat the plant with insecticidal soap.

Needle Discolouration: Yellowing or browning needles may indicate stress, often from overwatering, underwatering, or extreme temperature fluctuations. Ensure the plant is being watered correctly and check for any drainage issues.

7. Mulching

Mulching is a great way to keep the roots of 'Elegans Viridis' cool in summer and insulated in winter. A good mulch layer also helps retain moisture and suppress weeds.

Apply Mulch: Spread a 5?cm (2? inches) layer of organic mulch, such as bark chips or pine needles, around the base of the tree. Be sure to leave a gap around the trunk to prevent moisture from accumulating directly against the bark.

Refresh Mulch Annually: Mulch breaks down over time, so replenish it every spring to keep it effective and to maintain a tidy, neat appearance.

8. Propagation

Cryptomeria 'Elegans Viridis' can be propagated from semi-ripe cuttings taken in late summer or early autumn. These should be rooted in a well-draining compost mix. However, as with most cultivars, it is often easier and more reliable to purchase new plants from a reputable nursery to ensure the quality and consistency of the variety.

By following these care guidelines, your Cryptomeria japonica 'Elegans Viridis' will reward you with years of beauty, providing striking, feathery foliage and an attractive, upright form that adds interest to your garden all year round. Whether planted as a specimen tree, in a border, or as part of a larger planting scheme, this elegant cultivar offers a low-maintenance and visually appealing option for gardens of all sizes.

At Lakeside Tree Nursery, we are committed to helping you find the perfect trees and shrubs for your garden. With proper care, your Cryptomeria 'Elegans Viridis' will flourish, providing you with a beautiful, year-round focal point that will be the envy of your neighbours.