- Ideal soil and exposure to plant the immortelle in the garden
- Planting date of immortelle
- Council of maintenance and culture of immortelles
- Harvesting, conservation and use of immortelle
- Diseases, pests and parasites of immortelles
- Location and favorable association of immortelle
- Recommended varieties of immortelles for planting in the garden
The immortelle à bractées, or "strawflower" as the English call it, was previously namedHelichrysum bracteatum, but today it's worth saying Bracteatha bracteata.
It is a herbaceous perennial but especially an annual because of its hardiness which is limited around 0° C: it is better to keep it frost to preserve it.
Sessile leaves, ovate to lanceolate, are 5 to 15 cm long and are branched and erect stems.
The flowers are a little like daisies, they are in capitula with a central yellow corolla surrounded by fine bracts of different colors. They are between 3 and 8 cm in diameter. They attract bees and butterflies.
- Family: Asteraceae / Compounds
- Type: perennial or annual
- Origin: Australia
- Color: white, yellow, red, pink, orange, bronze flowers
- Sowing: yes
- Cutting: no
- Planting: spring
- Flowering: May to autumn
- Height: up to 1.5 m depending on the species
Ideal soil and exposure to plant the immortelle in the garden
The immortelle is grown in full sun in a rich, fresh and well-drained soil.
Planting date of immortelle
It is in spring that you sow the immortelles in a sandy mixture, at 18° C.
Council of maintenance and culture of immortelles
You can pinch the young immortelle's feet to ramify. For fairly tall varieties, you will need to put stakes to prevent the wind from drying the larger stems. Remove the faded flowers.
Harvesting, conservation and use of immortelle
You can cut the flowers before they are fully open, with their stems and dry them upside down, in the dark, to create dry bouquets.
Diseases, pests and parasites of immortelles
Oidium is the enemy of the immortal.
Location and favorable association of immortelle
It is a plant grown on the edge of flowerbeds or in the garden for varieties with low development. Others will find their place in the flowerbeds.
Recommended varieties of immortelles for planting in the garden
There are 7 species in total but many cultivars. Bracteantha bracteata 'Dargan Hill Monarch' has bright yellow flowers 6 cm in diameter and supports -5° C, Bractantha bracteata 'Silvery rose' has double pink-silver heads and rises to about 80 cm, Bracteantha bracteata breed Montrosum has double heads, Bracteantha bracteata Bright Bikini race also has double heads but is only 30 cm high...