Deno’s GardenMy Garden

Tetrataenium nepalense

Nepal Cowparsnip

Family ApiaceaeGenus Tetrataenium

A broad, flat head of small white flowers on a tall ribbed stem, with smaller heads below
FlowerPictured: Heracleum sphondylium, a relativeStephen James McWilliamCC0

About the plant

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

Habit
perennialPlants of the World Online
Flower
WhiteRead from the photograph on this page

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.

Worth knowing

  • In Sikkim and Darjeeling, where this cowparsnip is common, it is called chimphing in Nepali and is used for stomach ailments. Its seeds are ground with tomato into a relish, especially for boiled vegetables. Wikipedia: Tetrataenium nepalense

This source reports 5 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

Start around September 11, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 10, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C

about 6 months from start to sowing. Then 27 days to germinate.

93% germination in 10–27 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Heracleum p. 152Public domain
Show the original text
Heracleum (Aplaceae). H. nepalense germination benefits greatly from DS. Seed DS at 70 gave higher germination than seed DS at 40 showing that the necesary chemical reactions were not complete in 6 m at 40. Seed DS 6 m at 70 germ. 70(93% in 10-27 d) and 40(59%)-70. Seed DS 6'm at 40 berm. 70(68%)-40-70- 40-70(4%). Fresh seed germ. 70(3%)-40-70-40-70 and 40(22%)-70-40-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Heracleum p. 152. 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

Difficulty High Rated by us, not by the source.

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

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    4 germinated in this phase.

Steps after step 1 run on after germination.

Germination happens during step 1; time not stated, 21 days assumed.

68% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Heracleum p. 152Public domain
Show the original text
Heracleum (Aplaceae). H. nepalense germination benefits greatly from DS. Seed DS at 70 gave higher germination than seed DS at 40 showing that the necesary chemical reactions were not complete in 6 m at 40. Seed DS 6 m at 70 germ. 70(93% in 10-27 d) and 40(59%)-70. Seed DS 6'm at 40 berm. 70(68%)-40-70- 40-70(4%). Fresh seed germ. 70(3%)-40-70-40-70 and 40(22%)-70-40-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Heracleum p. 152. 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, 1993

Difficulty Moderate 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. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

Steps after step 2 run on after germination.

about 6 months from start to step 2. Germination happens during step 2; time not stated, 21 days assumed.

59% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Heracleum p. 152Public domain
Show the original text
Heracleum (Aplaceae). H. nepalense germination benefits greatly from DS. Seed DS at 70 gave higher germination than seed DS at 40 showing that the necesary chemical reactions were not complete in 6 m at 40. Seed DS 6 m at 70 germ. 70(93% in 10-27 d) and 40(59%)-70. Seed DS 6'm at 40 berm. 70(68%)-40-70- 40-70(4%). Fresh seed germ. 70(3%)-40-70-40-70 and 40(22%)-70-40-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Heracleum p. 152. 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, 1993

Difficulty High Rated by us, not by the source.

Start around March 15, 2027 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

Steps after step 1 run on after germination.

Germination happens during step 1; time not stated, 21 days assumed.

22% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Heracleum p. 152Public domain
Show the original text
Heracleum (Aplaceae). H. nepalense germination benefits greatly from DS. Seed DS at 70 gave higher germination than seed DS at 40 showing that the necesary chemical reactions were not complete in 6 m at 40. Seed DS 6 m at 70 germ. 70(93% in 10-27 d) and 40(59%)-70. Seed DS 6'm at 40 berm. 70(68%)-40-70- 40-70(4%). Fresh seed germ. 70(3%)-40-70-40-70 and 40(22%)-70-40-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Heracleum p. 152. 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, 1993

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

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

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  4. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  5. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

Steps after step 1 run on after germination.

Germination happens during step 1; time not stated, 21 days assumed.

3% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Heracleum p. 152Public domain
Show the original text
Heracleum (Aplaceae). H. nepalense germination benefits greatly from DS. Seed DS at 70 gave higher germination than seed DS at 40 showing that the necesary chemical reactions were not complete in 6 m at 40. Seed DS 6 m at 70 germ. 70(93% in 10-27 d) and 40(59%)-70. Seed DS 6'm at 40 berm. 70(68%)-40-70- 40-70(4%). Fresh seed germ. 70(3%)-40-70-40-70 and 40(22%)-70-40-70.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Heracleum p. 152. 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

Add to My Garden

View species page