Updated: July 23, 2023

Introduction

The white licorice plant, scientifically known as Helichrysum petiolare ‘Limelight’, is a popular choice among gardeners for its beautiful foliage and fast growth rate. This drought-tolerant perennial is native to South Africa and belongs to the Asteraceae family. In this article, we will explore the growth characteristics of the white licorice plant and how quickly it can establish itself in your garden.

Growth Habit

The white licorice plant is a sprawling evergreen perennial that can reach a height of 1-2 feet and spread up to 3-4 feet wide. It has soft, velvety leaves that are silvery-white in color, giving it a striking appearance. The leaves are oval-shaped with a slightly serrated edge and have a strong licorice scent when crushed.

Germination and Establishment

When it comes to germination, the white licorice plant can be started from seeds or propagated from cuttings. If you choose to start from seeds, it is recommended to sow them indoors about 6-8 weeks before the last frost date. The seeds should be sown in well-draining soil and covered lightly with a thin layer of soil. They require consistent moisture and warmth for successful germination, which typically takes around 10-14 days.

For those who prefer a quicker method of establishing the white licorice plant, propagating from cuttings is an excellent option. Take 4-6 inch stem cuttings from a healthy parent plant and remove the lower leaves. Dip the cut end in rooting hormone powder to encourage root development, then insert the cutting into a well-draining potting mix. Keep the soil consistently moist and place the pot in a warm and bright location. Roots should start to develop within 2-3 weeks, at which point you can transplant the cutting into its permanent location.

Growth Rate

Once established, the white licorice plant is known for its vigorous growth rate. In ideal growing conditions, it can grow up to 6-12 inches per year. This fast growth makes it an excellent option for quickly filling in empty spaces in your garden or providing ground cover.

Optimal Growing Conditions

To ensure the white licorice plant grows at its maximum potential, it is important to provide the optimal growing conditions. This plant thrives in full sun to partial shade, requiring at least 4-6 hours of direct sunlight daily. It can tolerate a wide range of soil types, including sandy, loamy, or clay soils, as long as they are well-draining. However, it prefers slightly acidic to neutral soil pH levels between 5.5 and 7.5.

In terms of temperature, the white licorice plant is hardy in USDA hardiness zones 9-11. It can tolerate temperatures as low as 20°F (-6°C) but may suffer damage if exposed to prolonged frost or freezing conditions. In cooler climates, it is often grown as an annual or brought indoors during the winter months.

Maintenance and Care

The white licorice plant is relatively low maintenance, making it a popular choice for both experienced and novice gardeners. Here are some essential care tips to ensure its health and optimal growth:

  1. Watering: While the white licorice plant is drought-tolerant once established, it still requires regular watering during dry periods. Water deeply whenever the top inch of soil feels dry, ensuring that the water reaches the root zone.

  2. Pruning: Regular pruning helps maintain the shape and compactness of the white licorice plant. Trim back any leggy or unruly growth to encourage bushier growth and prevent it from becoming too sprawling.

  3. Fertilization: The white licorice plant benefits from a balanced fertilizer application in the spring and summer months. Use a slow-release granular fertilizer or a liquid fertilizer diluted to half strength to avoid over-fertilization.

  4. Pest and Disease Control: While the white licorice plant is generally pest and disease-resistant, it may occasionally attract aphids or spider mites. Monitor your plants regularly and take appropriate measures if any infestation occurs.

Conclusion

The white licorice plant is a fast-growing perennial that adds beauty and texture to any garden. With its silvery-white foliage and vigorous growth rate, it quickly fills in empty spaces and provides ground cover. Whether started from seeds or propagated from cuttings, the white licorice plant establishes itself relatively quickly and requires minimal maintenance. By providing the optimal growing conditions and following proper care guidelines, you can enjoy the beauty of this versatile plant in your garden for many years to come.

Related Posts:

White Licorice Plant