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Veronica aphylla

Largeflower Speedwell · Leafless-stemmed Speedwell

Family PlantaginaceaeGenus Veronica

A small clump of pale blue-violet flowers with white eyes and dark veins, on short stems rooted in white limestone chippings.
FlowerTigerenteCC BY 4.0

About the plant

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

Habit
perennialPlants of the World Online
Flower
BlueWikipedia
Native range
Albania, Austria, Czechia-Slovakia, France, Germany, Greece and elsewhereGBIF 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.

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around February 1, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 63 days.

30% germination in 35–63 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. aphylla germ. 70L(2%)-40-70L(15% in 2nd w), 70D-40-70D(none), and 40(30% in 5-9 w).
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 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: light

    2 germinated in this phase.

  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.

15% 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. aphylla germ. 70L(2%)-40-70L(15% in 2nd w), 70D-40-70D(none), and 40(30% in 5-9 w).
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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