How to Grow Xeranthemum Plants

Guide to Growing Immortelle and Everlasting Plant

The Xeranthemum genus of plants consists of hardy annuals that range in height from 60 to 90 cm (2 to 3 feet).

They have a silvery foliage, and bloom from the middle to end of summer when they carry leaves reminiscent of daisies; these may be pink or purple.

Xeranthemum inapertum

A common variety of Xeranthemum grown in the garden is Immortelle, though beware that it is considered a weed in many areas.

Both photographs of Xeranthemum inapertum by Manuel M. Ramos under creative commons licence.

How to Grow Immortelle

It is best to start off Immortelle indoors. Sow the seeds in peat pots about three weeks before the last frost of spring.

It should take about two weeks for Immortelle, Everlasting, and other Xeranthemum species to germinate at a temperature of 20 degrees Celsius (68°F).

Once growing, transplant the Immortelle seedling outdoors following the last frost at a spacing of 20 to 40 cm (8 to 16 inches).

Ideally Immortelle should be grown in a sunny part of the garden; the soil type is not too important.

Caring for Xeranthemum Plants

It is easy to grow an look after Immortelle as they can tolerate dry soils so can pretty much look after themselves

That said, a splash of water every now and again for your Xeranthemum plant will not go amiss.

Xeranthemum Growing and Care Guide

Common Names: Immortelle, Everlasting.
Life Cycle: Hardy annual.
Height: 12 to 20 inches (30 to 50 cm).
Native: Southern Europe.
Growing Region: Zones 2 to 10.
Flowers: Summer and the start of autumn.
Flower Details: Purple, pink. Tubular. Ray florets, disc florets. Papery.
Foliage: Silvery-green. Orbicular to ovate.

Sow Outside: Cover seed. Following the last frost. Spacing 14 to 16 inches (35 to 40 cm).
Sow Inside: Use peat pots. Germination time: one to two weeks. Temperature 70°F (21°C). Three weeks in advance. Transplant outdoors following the last frost.
Requirements: Full sunlight. Ordinary soil. Can survive in dry soils. Provide support. Do not over water.
Family: Asteraceae.
Miscellaneous: Invasive species in some areas. Use commercial seeds for best results as wild ones do not stay true.

Common Questions

How many members does the Xeranthemum genus have?

The Xeranthemum genus comprises about 20 species, often known as Everlasting flowers.

Do members of Xeranthemum make a good garden or landscaping plant?

Yes, Xeranthemum species, with their unique papery blooms, make attractive additions to borders and dried flower arrangements.

Which Xeranthemum species are most frequently grown by gardeners?

The most commonly grown species is Xeranthemum annuum, also known as Annual Everlasting or Immortelle.

Are members of the Xeranthemum plant genus fragrant?

Xeranthemum species are not typically known for their fragrance but rather for their long-lasting, paper-like blooms.

What is the perfect location to grow Xeranthemum?

Xeranthemum prefers a sunny location with well-drained soil. They're perfect for borders and are commonly used in dried flower arrangements.

Is Xeranthemum invasive in the USA, if so in which states?

Currently, Xeranthemum is not known to be invasive in the USA. Always refer to local regulations for accurate information.

How do I remove Xeranthemum plants from my garden?

To remove Xeranthemum, uproot the entire plant, ensuring all root material is removed to prevent regrowth.


The Xeranthemum genus, often referred to as Everlasting Flower or Immortelle, belongs to the Asteraceae family. It includes several species of annual plants native to the Mediterranean region.

Xeranthemum thrives in full sun and well-drained soil. It is typically grown from seeds sown in spring. The plants produce daisy-like flowers that dry well, maintaining their shape and color, hence the name "Everlasting Flower".

I hope that you enjoyed this guide on how to grow Xeranthemum plants. You may also enjoy the following guides on growing 'mums such as

Chrysanthemum and Mesembryanthemum plants.