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Asphodeline liburnica

Jacob's Rod

Family AsphodelaceaeGenus Asphodeline

Tall slender spikes of yellow star-shaped flowers and green buds rising from tufts of fine grassy foliage
The whole plantKrzysztof Ziarnek, KenraizCC BY-SA 4.0

About the plant

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

Habit
tuberous geophytePlants of the World Online
Flower
YellowRead from the photograph on this page
Native range
Albania, Bulgaria, East Aegean Is., Greece, Italy, Kriti 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; Read from the photograph on this page — Deno's Garden; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low 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. Then 21 days to germinate.

100% germination in 21 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Asphodeline p. 16Public domain
Show the original text
Asphodeline (Liliaceae). A. liburnica data is now complete. It germ. 70D(100% in 3rd w). Light blocked germination, and a sample in 70L germ. 0/2 in 8 w. It was then shifted to 70D whereupon 2/2 germ. in the 7th d. It also germ. 40-70D(1/4 in 3rd w)-40(1/4 in 3rd w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Asphodeline p. 16. 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, 1998

Difficulty High Rated by us, not by the source.

Start around December 15, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    1/4 germinated in this phase.

Steps after step 2 run on after germination.

about 3 months from start to step 2. Germination happens during step 2, in 21 days.

25% germination in 21 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Asphodeline p. 16Public domain
Show the original text
Asphodeline (Liliaceae). A. liburnica data is now complete. It germ. 70D(100% in 3rd w). Light blocked germination, and a sample in 70L germ. 0/2 in 8 w. It was then shifted to 70D whereupon 2/2 germ. in the 7th d. It also germ. 40-70D(1/4 in 3rd w)-40(1/4 in 3rd w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Asphodeline p. 16. 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.

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

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