Deno’s Garden

Nolina parryi

Genus Nolina

Two sources report 8 treatments between them. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

Start around July 17, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on July 16, 2022.

  1. Dry storage

    Duration: 1460 daysTemperature: 70°F 21°C

  2. Warm moist stratification

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

    1/15 germinated in this phase.

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 4.5 years from start to sowing. Then 84 days to germinate.

20% germination in 7–84 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Nolina p. 50Public domain
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Nolina (Agavaceae). N. parryi DS 4 y germ. 70D(1/15 in 10th w)-40(3/15 in 1-12 w). Earlier work (1st Suppl.) had shown that there was significant dying after 2 y DS and this DS 4 y sample shows further dying after the 4 y DS.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Nolina p. 50. 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 February 8, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 56 days to germinate.

90% germination in 56 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Nolina p. 61Public domain
Show the original text
Nolina (Agavaceae). N. parryi germ. 70D(44% in 2-4 w)-40(56% in 3rd w), 70 GA-3(21%), 40(90% in 8th w), and 70% in April in OT. Seeds DS 6 m or 1 y gave similar patterns with 40(90% in 2-4 w) and 70D(5%)-40(80% in 3rd w). Seeds DS 2 y germ. 40(52% in 8-12 w)-70(24% in 3-7 d) showing that germination was less and slower after the 2 y DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Nolina p. 61. 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 September 10, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 9, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Temperature: 40°F 4°C

about 6 months from start to sowing. Then 28 days to germinate.

90% germination in 14–28 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Nolina p. 61Public domain
Show the original text
Nolina (Agavaceae). N. parryi germ. 70D(44% in 2-4 w)-40(56% in 3rd w), 70 GA-3(21%), 40(90% in 8th w), and 70% in April in OT. Seeds DS 6 m or 1 y gave similar patterns with 40(90% in 2-4 w) and 70D(5%)-40(80% in 3rd w). Seeds DS 2 y germ. 40(52% in 8-12 w)-70(24% in 3-7 d) showing that germination was less and slower after the 2 y DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Nolina p. 61. 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 Moderate Rated by us, not by the source.

Start around October 14, 2026 for a May 3 last frost. Too late for spring 2027 — that needed starting on October 13, 2024.

  1. Dry storage

    Duration: 730 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

    24 germinated in this phase.

Steps after step 2 run on after germination.

about 2 years from start to sowing. Then 84 days to germinate.

52% germination in 56–84 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Nolina p. 61Public domain
Show the original text
Nolina (Agavaceae). N. parryi germ. 70D(44% in 2-4 w)-40(56% in 3rd w), 70 GA-3(21%), 40(90% in 8th w), and 70% in April in OT. Seeds DS 6 m or 1 y gave similar patterns with 40(90% in 2-4 w) and 70D(5%)-40(80% in 3rd w). Seeds DS 2 y germ. 40(52% in 8-12 w)-70(24% in 3-7 d) showing that germination was less and slower after the 2 y DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Nolina p. 61. 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 March 15, 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. Germination time not stated; 21 days assumed.

21% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Nolina p. 61Public domain
Show the original text
Nolina (Agavaceae). N. parryi germ. 70D(44% in 2-4 w)-40(56% in 3rd w), 70 GA-3(21%), 40(90% in 8th w), and 70% in April in OT. Seeds DS 6 m or 1 y gave similar patterns with 40(90% in 2-4 w) and 70D(5%)-40(80% in 3rd w). Seeds DS 2 y germ. 40(52% in 8-12 w)-70(24% in 3-7 d) showing that germination was less and slower after the 2 y DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Nolina p. 61. 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 6

DerivedN. C. Deno, 1996

Difficulty Low Rated by us, not by the source.

  1. Sow outdoors and leave it

    Up in April.

No stated waiting before sowing.

70% germination.

This source doesn't state how long.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Nolina p. 61Public domain
Show the original text
Nolina (Agavaceae). N. parryi germ. 70D(44% in 2-4 w)-40(56% in 3rd w), 70 GA-3(21%), 40(90% in 8th w), and 70% in April in OT. Seeds DS 6 m or 1 y gave similar patterns with 40(90% in 2-4 w) and 70D(5%)-40(80% in 3rd w). Seeds DS 2 y germ. 40(52% in 8-12 w)-70(24% in 3-7 d) showing that germination was less and slower after the 2 y DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Nolina p. 61. 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 7

DerivedN. C. Deno, 1996

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. Warm moist stratification

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

    44 germinated in this phase.

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 21 days to germinate.

56% germination in 21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Nolina p. 61Public domain
Show the original text
Nolina (Agavaceae). N. parryi germ. 70D(44% in 2-4 w)-40(56% in 3rd w), 70 GA-3(21%), 40(90% in 8th w), and 70% in April in OT. Seeds DS 6 m or 1 y gave similar patterns with 40(90% in 2-4 w) and 70D(5%)-40(80% in 3rd w). Seeds DS 2 y germ. 40(52% in 8-12 w)-70(24% in 3-7 d) showing that germination was less and slower after the 2 y DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Nolina p. 61. 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 8

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around March 21, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 20, 2026.

  1. Dry storage

    Duration: 180 daysTemperature: 70°F 21°C

  2. Warm moist stratification

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

    5 germinated in this phase.

  3. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

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

80% germination in 21 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Nolina p. 61Public domain
Show the original text
Nolina (Agavaceae). N. parryi germ. 70D(44% in 2-4 w)-40(56% in 3rd w), 70 GA-3(21%), 40(90% in 8th w), and 70% in April in OT. Seeds DS 6 m or 1 y gave similar patterns with 40(90% in 2-4 w) and 70D(5%)-40(80% in 3rd w). Seeds DS 2 y germ. 40(52% in 8-12 w)-70(24% in 3-7 d) showing that germination was less and slower after the 2 y DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Nolina p. 61. 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.