Deno’s GardenMy Garden

Xeranthemum annuum

Immortelle · Annual Everlasting

Family AsteraceaeGenus Xeranthemum

Pink papery daisy flowers with pale centers
FlowerMusa geçitCC BY-SA 3.0

About the plant

What it is and where it grows — not part of any germination protocol.

Habit
annualPlants of the World Online
Flower
Pink-lilacWikipedia
Native range
Albania, Bulgaria, Central European Russia, Czechia-Slovakia, East European Russia, France and elsewhereGBIF Backbone Taxonomy

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Sources: Plants of the World Online — Royal Botanic Gardens, Kew; Wikipedia — Wikipedia contributors; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • The immortelle, or annual everlasting, is a symbol of eternity and immortality. It comes from eastern Europe and western Asia and is grown as a garden flower. Wikipedia: Xeranthemum annuum

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Very high Rated by us, not by the source.

Start around March 15, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Germination time not stated; 21 days assumed.

2% germination.

2%, and that is the whole of Deno's result for the species.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, XeranthemumPublic domain
Show the original text
Xeranthemum (Asteraceae). X. annuum germ. 70D(2%) and 40-70(none).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Xeranthemum. Quoted exactly. Every value on this card comes from this record, except the difficulty rating, which is ours; the step names come from a fixed list.

Protocol 2

DerivedN. C. Deno, 1993

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    Deno gives no length for this period; three months is his standard cycle.

  2. Warm moist stratification

    Temperature: 70°F 21°C

    Nothing.

about 3 months from start to step 2. Germination happens during step 2.

0% germination.

Nothing after a cold period.

This source doesn't state how long step 2 lasts.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, XeranthemumPublic domain
Show the original text
Xeranthemum (Asteraceae). X. annuum germ. 70D(2%) and 40-70(none).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Xeranthemum. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.

How each step is done, in Deno’s words, and what Verified and Derived mean.

Germination trials

Readers’ own records of sowing this species, published after review. Share your trial · All trials

Add to My Garden

View species page