Deno’s GardenMy Garden

Billardiera longiflora

Mountain Blue Berry · Purple Apple-berry

Family PittosporaceaeGenus Billardiera

A single pale yellow-green bell-shaped flower hanging among narrow dark green leaves
FlowerMurray FaggCC BY 3.0 AU

About the plant

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

Habit
climbing shrubPlants of the World Online
Flower
Greenish-yellowWikipedia
Native range
TasmaniaGBIF 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; Wikipedia — Wikipedia contributors; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

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 November 24, 2026 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

about 3 months from start to step 2. Germination happens during step 2, in 42 days.

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 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

  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.

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 December 15, 2026 for a May 3 last frost.

  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 3 months from start to step 2. Germination happens during step 2; 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

Germination happens during step 1, in 84 days.

4% germination in 56–84 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 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.

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