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Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10

Rose of Sharon
Temporarily sold out

  • 90cm
    |
    130cm
    |
    Pot
    |
    Temporarily sold out
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Benefits according to our specialist
  • Abundant flowering
  • Long flowering period
  • Winter hardy
  • Suitable as a solitary plant
  • Suitable for pots
  • Late to emerge in spring
  • Deciduous

Plant features Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10

Rose of Sharon


Description Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 | Rose of Sharon

A half-standard Rose of Sharon brings the familiar flowering character of Hibiscus syriacus ‘Ardens’ into a more structured form. This is a deciduous, broadleaf shrub with a clear stem and a raised crown, creating an upright and bushy silhouette above ground level. The elevated crown gives the plant a defined shape and a strong visual presence, with more open space beneath the flowering growth than a shrub that starts at the base. Green foliage provides a fresh background during the growing season, while lilac-pink flowers add colour over a long flowering period. It can reach an approximate mature height of 3 m. As a half-standard plant, it has the appearance of a small flowering tree while retaining the character of a bushy shrub. Rose of Sharon is not evergreen, so it changes with the seasons and loses its leaves in winter. This fruit-bearing plant is suited to a specimen position where its raised structure can be seen clearly, or to a container on a patio. It can also add height and form to a UK garden border. As a member of the hibiscus genus, it offers a distinct ornamental shape for gardeners looking for a flowering half-standard shrub.

Key features of Rose of Sharon (Hibiscus syriacus 'Ardens')

  • The lilac-pink flowers are prominent and abundant. They appear from July to September, giving this Syrian hibiscus a long flowering period during the warmer part of the UK gardening season. The colour works well as a clear accent in a border, pot or specimen position.
  • The foliage is green and deciduous. The leaves form a leafy crown during the growing season, while the plant is not evergreen and will be bare in winter. Its upright and bushy growth gives the flowering display a full, structured appearance.
  • The half-standard structure is a key feature of this plant. A clear stem supports an elevated crown, creating a defined upright silhouette and a raised flowering display compared with a shrub grown from the base. Place it in full sun or partial shade, ideally in a sheltered position where its form can be appreciated.
  • Rose of Sharon grows best in well-drained, humus-rich and lightly moist soil. Good drainage is important, while the soil should retain some moisture rather than becoming excessively dry. These conditions are suitable for a UK garden, provided the growing position is not poorly drained.
  • This flowering shrub can be used in a container or on a patio as well as in the ground. Its raised crown gives it a clear presence above surrounding planting, making it a suitable choice for the flowering shrubs category and for a structured ornamental display.

Uses for a half-standard Rose of Sharon in the garden

  • Use this half-standard Rose of Sharon as a specimen plant in a sunny or partially shaded part of the garden. The clear stem and elevated crown create vertical structure and allow the plant to stand apart from lower planting. It can draw attention without taking the visual form of a shrub spreading from ground level.
  • The plant is suitable for a border, pot or patio. In a border, the raised crown creates a different visual layer above lower-growing plants. In a container, its tree-like outline can give a patio a clear focal point, while the lilac-pink flowers provide colour from July to September.
  • It is hardy to approximately -23.3°C to -9.4°C, corresponding to the supplied USDA zone 5 information. This makes it a hardy Rose of Sharon choice for a UK garden, although a sheltered position is a practical option in exposed sites. The stated range should be considered when choosing its location.
  • Combine the half-standard form with lower-growing border plants around the clear stem, leaving the raised crown as the main feature. Compatible flowering perennials, low shrubs and ornamental grasses can help create layers without hiding the plant’s structured outline. Keep the planting simple enough for the stem and crown to remain visible.
  • Its main ornamental value comes from the long lilac-pink flowering period, the elevated crown and the defined specimen silhouette. The plant adds a flowering focal point with vertical structure while occupying a different visual layer from low planting. This makes it useful where form and seasonal colour are both important.

This half-standard Rose of Sharon is a structured flowering choice for a sunny or partially shaded UK garden, patio or container setting.

Planting & care Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 (Rose of Sharon)

We would like to provide some tips on how to plant and care for a Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10. By following these tips, you can be sure to enjoy your Rose of Sharon for a long time.

Ideal placement of a Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 (Rose of Sharon)

Hibiscus syriacus 'Ardens' Half-standard grows best in full sun, although it will tolerate light partial shade. Choose a sheltered position with fertile, humus-rich and well-drained soil that remains reasonably moist without becoming waterlogged. A warm site helps the flowers open fully and protects the half-standard stem from strong winds.

How do I plant a Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 (Rose of Sharon)?

Plant in autumn or spring, avoiding periods of frost or waterlogged soil. Improve poor soil with well-rotted organic matter and dig a planting hole wider than the root ball, setting the plant at the same depth as it was previously growing. Water thoroughly after planting and keep the root zone moist during the first growing season; use a sturdy stake if the stem or crown is exposed to wind. It can be grown in a large container, provided it has drainage holes and a free-draining, loam-based compost.

Pruning a Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 (Rose of Sharon)

Prune in late winter or early spring, once the risk of severe frost has passed, because this plant flowers on new growth. Remove dead, damaged or crossing branches and lightly shape the crown to maintain an attractive standard form. Avoid heavy pruning of the main stem, and do not cut off the grafted or trained head below the crown. Remove any shoots that appear from the stem or rootstock promptly.

Watering a Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 (Rose of Sharon)

Water thoroughly after planting and water regularly during the first growing season, especially in dry weather. Established plants usually cope with short dry spells, but flowering and growth are better when the soil does not dry out for long periods. Container-grown specimens need more frequent attention and should be watered when the compost surface begins to dry, while excess water must be allowed to drain away.

Fertilising a Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 (Rose of Sharon)

Apply a balanced slow-release fertiliser in spring as growth begins. A mulch of well-rotted compost or manure can also be spread around the root area, keeping it clear of the stem. Avoid excessive nitrogen, as this can encourage leafy growth at the expense of flowering and may produce soft shoots.

The characteristics of a Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 (Rose of Sharon)

This deciduous half-standard has an elevated crown that provides a clear-stemmed, tree-like shape for patios, borders and formal planting schemes. 'Ardens' is valued for its double to semi-double purple-red flowers, which appear in summer and are attractive to pollinating insects. It is generally hardy in the UK, although young plants and container specimens benefit from a sheltered position and protection from severe winter conditions. The raised crown is useful where planting space beneath the canopy is required, but the stem should be protected from mechanical damage.

Separating/dividing a Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 (Rose of Sharon)

Dividing is not suitable for Hibiscus syriacus 'Ardens' Half-standard, as it is a woody, trained plant rather than a clump-forming perennial. The half-standard form is normally maintained by nursery propagation and training, while established plants are not split. Do not disturb the stem or root system unnecessarily; routine pruning and occasional replacement of the plant are more appropriate.

Frequently Asked Questions Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 (Rose of Sharon)

What will be the height of Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10?

The overall height depends largely on the stem height chosen by the nursery and the subsequent size of the crown. In garden conditions, the crown can become a substantial shrub, so allow enough vertical space for the plant to mature.

What will be the width of Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10?

The crown commonly develops a rounded spread that can become roughly as wide as it is tall above the stem. Its final width varies with pruning, stem height and growing conditions.

Which soil type is most suitable for the Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10?

It prefers fertile, humus-rich and well-drained soil that retains some moisture without becoming waterlogged. It is adaptable to loam, sandy loam and improved clay soils, provided drainage is good.

What is the ideal positioning for the Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10?

A sunny, sheltered position is best, although light partial shade is tolerated. A warm site encourages better flowering and protects the elevated stem and crown from strong winds.

What is the flowering colour of the Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10?

The flowers are generally rich purple-red to reddish-purple and are double or semi-double in appearance. Colour intensity can vary with weather, light levels and the age of the flowers.

What is the flowering time of the Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10?

It usually flowers from mid to late summer, often continuing into early autumn when conditions remain favourable. Flowering is best in a warm, sunny position and on new season's growth.

Is the Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 hardy?

Yes, it is generally hardy in the UK when planted in a suitable position. Young plants and specimens grown in containers are more vulnerable to severe frost, cold winds and frozen compost, so some winter protection may be beneficial.

Is the Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 evergreen?

No, it is deciduous and loses its leaves in autumn. It remains bare during winter before producing fresh foliage in spring.

What is the growth strength of the Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10?

It has moderate growth once established, although it may take time to build a full crown. Growth is usually stronger in a sunny, fertile position with adequate moisture during dry periods.

What kind of bark does the Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 have?

The trained stem and older branches have relatively smooth grey-brown bark, while younger shoots are smoother and often greenish-brown. The bark is not usually grown for distinctive ornamental features.

Is Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10 poisonous?

Warning: This tree 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 tree 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.

Yes, it can be grown in a large, heavy container with good drainage, but it will need more regular watering and feeding than a plant in the ground. Protect the container and roots from severe winter frost, and repot or refresh the compost when the root system becomes congested.
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The ideal variety for you

Buy Hibiscus syriacus 'Ardens' half-standard 90 cm trunk C10

Buy the half-standard Rose of Sharon (Hibiscus syriacus 'Ardens') for a richly flowering feature plant. Its lilac-pink flowers appear from July to September, making it suitable as a solitary plant, in borders or in a pot. It thrives in sun or partial shade and is hardy to USDA zone 5.
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