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Atriplex longipes

Long-stalked Orache

Family AmaranthaceaeGenus Atriplex

A single upright stem with broad spear-shaped leaves and small green flower clusters where they join, in grass
The whole plantEckhard GarveCC 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
Native range
Baltic States, Denmark, Finland, France, Germany, Great Britain 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; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

This source reports 5 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

  1. Sow outdoors and leave it

    Up in April and May.

No stated waiting before sowing.

90% germination.

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

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Atriplex p. 24Public domain
Show the original text
Atriplex (Chenopodiaceae). A. longipes germ. 70 GA-3 (20% in 2-4 w)-40-70(50% in 3rd w), 70D (3%)-40- 70D(7%), 70L-40-70D(12%), 40-70(37% in 1 d-6 w)-40-70(5%), and 90% in April and May in OT. Seeds DS 2 y were dead.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Atriplex p. 24. 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 September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Gibberellic acid soak

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    20 germinated in this phase.

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

about 6 months from start to step 4. Germination happens during step 4, in 21 days.

50% germination in 21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Atriplex p. 24Public domain
Show the original text
Atriplex (Chenopodiaceae). A. longipes germ. 70 GA-3 (20% in 2-4 w)-40-70(50% in 3rd w), 70D (3%)-40- 70D(7%), 70L-40-70D(12%), 40-70(37% in 1 d-6 w)-40-70(5%), and 90% in April and May in OT. Seeds DS 2 y were dead.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Atriplex p. 24. 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 High Rated by us, not by the source.

Start around November 24, 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

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  4. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    5 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 42 days.

37% germination in 1–42 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Atriplex p. 24Public domain
Show the original text
Atriplex (Chenopodiaceae). A. longipes germ. 70 GA-3 (20% in 2-4 w)-40-70(50% in 3rd w), 70D (3%)-40- 70D(7%), 70L-40-70D(12%), 40-70(37% in 1 d-6 w)-40-70(5%), and 90% in April and May in OT. Seeds DS 2 y were dead.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Atriplex p. 24. 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 September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

about 6 months from start to step 3. Germination happens during step 3; time not stated, 21 days assumed.

12% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Atriplex p. 24Public domain
Show the original text
Atriplex (Chenopodiaceae). A. longipes germ. 70 GA-3 (20% in 2-4 w)-40-70(50% in 3rd w), 70D (3%)-40- 70D(7%), 70L-40-70D(12%), 40-70(37% in 1 d-6 w)-40-70(5%), and 90% in April and May in OT. Seeds DS 2 y were dead.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Atriplex p. 24. 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 Very high Rated by us, not by the source.

Start around September 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 16, 2026.

  1. Warm moist stratification

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

    3 germinated in this phase.

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

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

about 6 months from start to step 3. Germination happens during step 3; time not stated, 21 days assumed.

7% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Atriplex p. 24Public domain
Show the original text
Atriplex (Chenopodiaceae). A. longipes germ. 70 GA-3 (20% in 2-4 w)-40-70(50% in 3rd w), 70D (3%)-40- 70D(7%), 70L-40-70D(12%), 40-70(37% in 1 d-6 w)-40-70(5%), and 90% in April and May in OT. Seeds DS 2 y were dead.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Atriplex p. 24. 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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