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Paradisea liliastrum

St. Bruno's Lily

Family AsparagaceaeGenus Paradisea

White lily flowers of six pointed tepals with orange-tipped stamens, on smooth green stems in mountain grass.
FlowerPethan - [1]CC BY-SA 3.0

About the plant

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

Habit
tuberous geophytePlants of the World Online
Flower
WhiteWikipedia
Native range
Austria, France, Italy, NW. Balkan Pen., Spain, SwitzerlandGBIF 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

  • St Bruno's lily is named after the 11th-century founder of the Carthusian order. Dioscorides mentioned it in De Materia Medica, and in 1610 John Tradescant ordered it from Brussels for Hatfield House. Wikipedia: Paradisea liliastrum

This source reports 5 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty High Rated by us, not by the source.

Start around January 25, 2027 for a May 3 last frost.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 70 days to germinate.

14% germination in 70 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Paradisea p. 63Public domain
Show the original text
Paradisea (Liliaceae). P. liliastrum germ. 1/12 in April from seed placed outdoors in February and also 40-70-40-70(1/10). A second sample germ. 70 GA-3(1/7 in 10th w) and none in 70D or OT. The results are similar to
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Paradisea p. 63. 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, 1996

Difficulty High Rated by us, not by the source.

Start around June 19, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on June 18, 2026.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 9 months from start to step 4. Germination happens during step 4; time not stated, 21 days assumed.

10% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Paradisea p. 63Public domain
Show the original text
Paradisea (Liliaceae). P. liliastrum germ. 1/12 in April from seed placed outdoors in February and also 40-70-40-70(1/10). A second sample germ. 70 GA-3(1/7 in 10th w) and none in 70D or OT. The results are similar to
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Paradisea p. 63. 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 3

DerivedN. C. Deno, 1996

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

Sow around February 2027 — a date the source gives, not one counted back from a May 3 last frost.

  1. Sow outdoors and leave it

    Sown outdoors in February; up in April.

No stated waiting before sowing. Then 60 days to germinate.

8% germination in 60 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Paradisea p. 63Public domain
Show the original text
Paradisea (Liliaceae). P. liliastrum germ. 1/12 in April from seed placed outdoors in February and also 40-70-40-70(1/10). A second sample germ. 70 GA-3(1/7 in 10th w) and none in 70D or OT. The results are similar to
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Paradisea p. 63. 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 4

DerivedN. C. Deno, 1996

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing.

0% germination.

Nothing germinated at 70.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Paradisea p. 63Public domain
Show the original text
Paradisea (Liliaceae). P. liliastrum germ. 1/12 in April from seed placed outdoors in February and also 40-70-40-70(1/10). A second sample germ. 70 GA-3(1/7 in 10th w) and none in 70D or OT. The results are similar to
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Paradisea p. 63. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.

Protocol 5

DerivedN. C. Deno, 1996

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

  1. Sow outdoors and leave it

    Nothing germinated outdoors.

No stated waiting before sowing.

0% germination.

This source doesn't state how long step 1 lasts.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Paradisea p. 63Public domain
Show the original text
Paradisea (Liliaceae). P. liliastrum germ. 1/12 in April from seed placed outdoors in February and also 40-70-40-70(1/10). A second sample germ. 70 GA-3(1/7 in 10th w) and none in 70D or OT. The results are similar to
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Paradisea p. 63. 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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