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Epilobium palustre

Marsh Willow-herb · Swamp Willowherb · Marsh Willowherb

Family OnagraceaeGenus Epilobium

A pale pink flower of four notched petals veined darker, with a white club-shaped stigma
FlowerKristian Peters -- Fabelfroh 08:57, 17 August 2007 (UTC)CC BY-SA 3.0

About the plant

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

Habit
perennialPlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
WhiteFlora of North America
Native range
Afghanistan, Alaska, Albania, Alberta, Altay, Amur 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; PLANTS Database — USDA NRCS; Flora of North America — Flora of North America Editorial Committee; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

This source reports 5 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around December 30, 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: light

about 3 months from start to step 2. Germination happens during step 2, in 6 days.

95% germination in 4–6 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Epilobium p. 41Public domain
Show the original text
Epilobium (Onagraceae). E. palustris germ. 70D(77% in 1-11 w), 70L(72% in 2nd w), 40-70L(95% in 4-6 d), and 40-70D(18%). Seeds DS for 1 y germ. 70D(25% in 3rd w) indicating that 67% had died.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Epilobium p. 41. 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 Low Rated by us, not by the source.

Start around January 18, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 77 days to germinate.

77% germination in 7–77 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Epilobium p. 41Public domain
Show the original text
Epilobium (Onagraceae). E. palustris germ. 70D(77% in 1-11 w), 70L(72% in 2nd w), 40-70L(95% in 4-6 d), and 40-70D(18%). Seeds DS for 1 y germ. 70D(25% in 3rd w) indicating that 67% had died.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Epilobium p. 41. 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 Low Rated by us, not by the source.

Start around March 22, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 14 days to germinate.

72% germination in 14 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Epilobium p. 41Public domain
Show the original text
Epilobium (Onagraceae). E. palustris germ. 70D(77% in 1-11 w), 70L(72% in 2nd w), 40-70L(95% in 4-6 d), and 40-70D(18%). Seeds DS for 1 y germ. 70D(25% in 3rd w) indicating that 67% had died.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Epilobium p. 41. 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

Difficulty High Rated by us, not by the source.

Start around March 16, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 15, 2026.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

about 12 months from start to sowing. Then 21 days to germinate.

25% germination in 21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Epilobium p. 41Public domain
Show the original text
Epilobium (Onagraceae). E. palustris germ. 70D(77% in 1-11 w), 70L(72% in 2nd w), 40-70L(95% in 4-6 d), and 40-70D(18%). Seeds DS for 1 y germ. 70D(25% in 3rd w) indicating that 67% had died.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Epilobium p. 41. 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 5

DerivedN. C. Deno, 1996

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

about 3 months from start to step 2. Germination happens during step 2; time not stated, 21 days assumed.

18% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Epilobium p. 41Public domain
Show the original text
Epilobium (Onagraceae). E. palustris germ. 70D(77% in 1-11 w), 70L(72% in 2nd w), 40-70L(95% in 4-6 d), and 40-70D(18%). Seeds DS for 1 y germ. 70D(25% in 3rd w) indicating that 67% had died.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Epilobium p. 41. 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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