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Asperula orientalis

Annual Woodruff · Oriental Asperula

Family RubiaceaeGenus Asperula

A round head of small pale blue tubular flowers ringed by narrow green bracts, above a soft green blur of leaves
FlowerKrzysztof Ziarnek, KenraizCC BY-SA 4.0

About the plant

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

Habit
annualPlants of the World Online
Habit
Annual, Forb/herbPLANTS Database
Flower
Purplish blueFlora of China
Native range
Iran, Iraq, Lebanon-Syria, Northwest European Russia, Transcaucasus, TürkiyeGBIF 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; PLANTS Database — USDA NRCS; Flora of China — Wu Zhengyi, Peter H. Raven and Hong Deyuan (eds.); GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • Annual woodruff, from Turkey, the Caucasus and Iran, is often grown as an ornamental and is reported to have gone wild in Oregon, North Dakota and the Czech Republic. Wikipedia: Asperula orientalis

This source reports 6 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low Rated by us, not by the source.

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

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 21 days.

88% germination in 21 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asperula p. 104Public domain
Show the original text
Asperula (Rubiaceae). Larger samples are needed. A. orientalis germ. 70(5/10 in 2-6 d) and 40(7/8 in 3rd w). A second sample germ. 70 GA-3(12% in 2nd w), 70D(6%), and 40(none). A. pontiOa germ. 70(1/10 on 7th w) and 40(1/10 on 11th w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asperula p. 104. 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 Moderate Rated by us, not by the source.

Start around March 30, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 6 days to germinate.

50% germination in 2–6 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asperula p. 104Public domain
Show the original text
Asperula (Rubiaceae). Larger samples are needed. A. orientalis germ. 70(5/10 in 2-6 d) and 40(7/8 in 3rd w). A second sample germ. 70 GA-3(12% in 2nd w), 70D(6%), and 40(none). A. pontiOa germ. 70(1/10 on 7th w) and 40(1/10 on 11th w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asperula p. 104. 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 High Rated by us, not by the source.

Start around March 22, 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 14 days to germinate.

12% germination in 14 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asperula p. 104Public domain
Show the original text
Asperula (Rubiaceae). Larger samples are needed. A. orientalis germ. 70(5/10 in 2-6 d) and 40(7/8 in 3rd w). A second sample germ. 70 GA-3(12% in 2nd w), 70D(6%), and 40(none). A. pontiOa germ. 70(1/10 on 7th w) and 40(1/10 on 11th w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asperula p. 104. 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 January 18, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 77 days.

10% germination in 77 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asperula p. 104Public domain
Show the original text
Asperula (Rubiaceae). Larger samples are needed. A. orientalis germ. 70(5/10 in 2-6 d) and 40(7/8 in 3rd w). A second sample germ. 70 GA-3(12% in 2nd w), 70D(6%), and 40(none). A. pontiOa germ. 70(1/10 on 7th w) and 40(1/10 on 11th w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asperula p. 104. 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 High Rated by us, not by the source.

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

  1. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing. Then 49 days to germinate.

10% germination in 49 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asperula p. 104Public domain
Show the original text
Asperula (Rubiaceae). Larger samples are needed. A. orientalis germ. 70(5/10 in 2-6 d) and 40(7/8 in 3rd w). A second sample germ. 70 GA-3(12% in 2nd w), 70D(6%), and 40(none). A. pontiOa germ. 70(1/10 on 7th w) and 40(1/10 on 11th w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asperula p. 104. 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, 1993

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

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

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Germination time not stated; 21 days assumed.

6% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Asperula p. 104Public domain
Show the original text
Asperula (Rubiaceae). Larger samples are needed. A. orientalis germ. 70(5/10 in 2-6 d) and 40(7/8 in 3rd w). A second sample germ. 70 GA-3(12% in 2nd w), 70D(6%), and 40(none). A. pontiOa germ. 70(1/10 on 7th w) and 40(1/10 on 11th w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Asperula p. 104. 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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