Deno’s Garden

Billardiera longiflora

Genus Billardiera

This source reports 7 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Moderate Rated by us, not by the source.

Start around August 27, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on August 26, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Then 42 days to germinate.

100% germination in 21–42 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Billardiera p. 19Public domain
Show the original text
Billardiera (Pittosporaceae). Both species germ. only with GA-3 but in different patterns. * B. longiflora germ. 70 (GA-3)-40(100% in 3-6 w), 70D-40-70D(2/26), and 70L- 40(1/15). Seeds still germ. 70-(GA-3)-40 after a year of althernating cycles. A second sample all rotted. A third sample was received a few weeks after collection and germ. 40(2/56 in 8-12 w))-70D(1/56 on 7th d) and none in 70D, 70L, 70 GA-3, or 40 GA-3. B. longiflora fructoalba germ. 70 GA-3(3/4' in 4th w) and none in 70D-40-70D or 70L-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Billardiera p. 19. 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, 1998

Difficulty Low Rated by us, not by the source.

Start around March 8, 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 28 days to germinate.

75% germination in 28 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Billardiera p. 19Public domain
Show the original text
Billardiera (Pittosporaceae). Both species germ. only with GA-3 but in different patterns. * B. longiflora germ. 70 (GA-3)-40(100% in 3-6 w), 70D-40-70D(2/26), and 70L- 40(1/15). Seeds still germ. 70-(GA-3)-40 after a year of althernating cycles. A second sample all rotted. A third sample was received a few weeks after collection and germ. 40(2/56 in 8-12 w))-70D(1/56 on 7th d) and none in 70D, 70L, 70 GA-3, or 40 GA-3. B. longiflora fructoalba germ. 70 GA-3(3/4' in 4th w) and none in 70D-40-70D or 70L-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Billardiera p. 19. 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, 1998

Difficulty Very 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. Warm moist stratification

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

  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 9 months from start to sowing. Germination time not stated; 21 days assumed.

8% germination.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Billardiera p. 19Public domain
Show the original text
Billardiera (Pittosporaceae). Both species germ. only with GA-3 but in different patterns. * B. longiflora germ. 70 (GA-3)-40(100% in 3-6 w), 70D-40-70D(2/26), and 70L- 40(1/15). Seeds still germ. 70-(GA-3)-40 after a year of althernating cycles. A second sample all rotted. A third sample was received a few weeks after collection and germ. 40(2/56 in 8-12 w))-70D(1/56 on 7th d) and none in 70D, 70L, 70 GA-3, or 40 GA-3. B. longiflora fructoalba germ. 70 GA-3(3/4' in 4th w) and none in 70D-40-70D or 70L-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Billardiera p. 19. 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, 1998

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: light

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 6 months from start to sowing. Germination time not stated; 21 days assumed.

7% germination.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Billardiera p. 19Public domain
Show the original text
Billardiera (Pittosporaceae). Both species germ. only with GA-3 but in different patterns. * B. longiflora germ. 70 (GA-3)-40(100% in 3-6 w), 70D-40-70D(2/26), and 70L- 40(1/15). Seeds still germ. 70-(GA-3)-40 after a year of althernating cycles. A second sample all rotted. A third sample was received a few weeks after collection and germ. 40(2/56 in 8-12 w))-70D(1/56 on 7th d) and none in 70D, 70L, 70 GA-3, or 40 GA-3. B. longiflora fructoalba germ. 70 GA-3(3/4' in 4th w) and none in 70D-40-70D or 70L-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Billardiera p. 19. 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, 1998

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

Start around January 11, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

No stated waiting before sowing. Then 84 days to germinate.

4% germination in 56–84 days.

This source doesn't state how long.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Billardiera p. 19Public domain
Show the original text
Billardiera (Pittosporaceae). Both species germ. only with GA-3 but in different patterns. * B. longiflora germ. 70 (GA-3)-40(100% in 3-6 w), 70D-40-70D(2/26), and 70L- 40(1/15). Seeds still germ. 70-(GA-3)-40 after a year of althernating cycles. A second sample all rotted. A third sample was received a few weeks after collection and germ. 40(2/56 in 8-12 w))-70D(1/56 on 7th d) and none in 70D, 70L, 70 GA-3, or 40 GA-3. B. longiflora fructoalba germ. 70 GA-3(3/4' in 4th w) and none in 70D-40-70D or 70L-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Billardiera p. 19. 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, 1998

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

Start around March 29, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 7 days to germinate.

2% germination in 7 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Billardiera p. 19Public domain
Show the original text
Billardiera (Pittosporaceae). Both species germ. only with GA-3 but in different patterns. * B. longiflora germ. 70 (GA-3)-40(100% in 3-6 w), 70D-40-70D(2/26), and 70L- 40(1/15). Seeds still germ. 70-(GA-3)-40 after a year of althernating cycles. A second sample all rotted. A third sample was received a few weeks after collection and germ. 40(2/56 in 8-12 w))-70D(1/56 on 7th d) and none in 70D, 70L, 70 GA-3, or 40 GA-3. B. longiflora fructoalba germ. 70 GA-3(3/4' in 4th w) and none in 70D-40-70D or 70L-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Billardiera p. 19. 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, 1998

  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, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Billardiera p. 19Public domain
Show the original text
Billardiera (Pittosporaceae). Both species germ. only with GA-3 but in different patterns. * B. longiflora germ. 70 (GA-3)-40(100% in 3-6 w), 70D-40-70D(2/26), and 70L- 40(1/15). Seeds still germ. 70-(GA-3)-40 after a year of althernating cycles. A second sample all rotted. A third sample was received a few weeks after collection and germ. 40(2/56 in 8-12 w))-70D(1/56 on 7th d) and none in 70D, 70L, 70 GA-3, or 40 GA-3. B. longiflora fructoalba germ. 70 GA-3(3/4' in 4th w) and none in 70D-40-70D or 70L-40-70D.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Billardiera p. 19. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.