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Veronica nummularia

Pyrenean Speedwell

Family PlantaginaceaeGenus Veronica

Dense heads of blue-violet flowers on short stems with small rounded leaves, packed into a crack in pale rock.
FlowerGhislain118 (AD) https://www.fleurs-des-montagnes.netCC BY-SA 3.0

About the plant

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

Habit
subshrubPlants of the World Online
Flower
Blue-violetRead from the photograph on this page
Native range
France, SpainGBIF 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; Read from the photograph on this page — Deno's Garden; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

This source reports 4 treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around September 24, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 23, 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: light

about 6 months from start to step 3. Germination happens during step 3, in 14 days.

74% germination in 14 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Veronica p. 227Public domain
Show the original text
Veronica (Scrophulariaceae). V. nummularia germ. 70L(31% in 2nd w), 70D40-70L(74% in 2nd w), 70D-40- 70D(16% in 2nd w), and 40(32% in 4-6 w)-70(7%). The behavior is complicated, but stimulaton of germination by light is evident.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Veronica p. 227. 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 February 22, 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

    7 germinated in this phase.

Steps after step 1 run on after germination.

Germination happens during step 1, in 42 days.

32% germination in 28–42 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Veronica p. 227Public domain
Show the original text
Veronica (Scrophulariaceae). V. nummularia germ. 70L(31% in 2nd w), 70D40-70L(74% in 2nd w), 70D-40- 70D(16% in 2nd w), and 40(32% in 4-6 w)-70(7%). The behavior is complicated, but stimulaton of germination by light is evident.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Veronica p. 227. 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 March 22, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 14 days to germinate.

31% germination in 14 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Veronica p. 227Public domain
Show the original text
Veronica (Scrophulariaceae). V. nummularia germ. 70L(31% in 2nd w), 70D40-70L(74% in 2nd w), 70D-40- 70D(16% in 2nd w), and 40(32% in 4-6 w)-70(7%). The behavior is complicated, but stimulaton of germination by light is evident.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Veronica p. 227. 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 September 24, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 23, 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, in 14 days.

16% germination in 14 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Veronica p. 227Public domain
Show the original text
Veronica (Scrophulariaceae). V. nummularia germ. 70L(31% in 2nd w), 70D40-70L(74% in 2nd w), 70D-40- 70D(16% in 2nd w), and 40(32% in 4-6 w)-70(7%). The behavior is complicated, but stimulaton of germination by light is evident.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Veronica p. 227. 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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