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Edraianthus pumilio

Silvery Dwarf Harebell

Family CampanulaceaeGenus Edraianthus

A violet bell-shaped flower opening among narrow silver-green leaves on a rocky slope
FlowerGhislain118 http://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
perennial or subshrubPlants of the World Online
Flower
VioletWikipedia
Native range
NW. Balkan Pen.GBIF 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

  • Pumilio means "small in stature": this harebell from the Biokovo mountains of Croatia grows only about 2.5 cm tall, a cushion of silvery leaves with upturned violet bells. It holds the RHS Award of Garden Merit. Wikipedia: Edraianthus pumilio

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

Start around March 23, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on March 22, 2026.

  1. Dry storage

    Duration: 365 daysTemperature: 70°F 21°C

  2. Sow and cover

    Temperature: 70°F 21°C Light: light

about 12 months from start to sowing. Then 14 days to germinate.

100% germination in 14 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Edraianthus p. 32Public domain
Show the original text
Edraianthus (Campanulaceae). E. pumilio germ. 70L(7/8 in 7-9 w) and 70D(none) confirming the light requirement found with an earlier sample {2nd Ed.). Seeds DS 1 y germ. 70L(9/9 in 2nd w) and 70D(none) showing no sign of dying or of disappearance of the light requirement. '
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Edraianthus p. 32. 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 February 1, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 63 days to germinate.

88% germination in 49–63 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Edraianthus p. 32Public domain
Show the original text
Edraianthus (Campanulaceae). E. pumilio germ. 70L(7/8 in 7-9 w) and 70D(none) confirming the light requirement found with an earlier sample {2nd Ed.). Seeds DS 1 y germ. 70L(9/9 in 2nd w) and 70D(none) showing no sign of dying or of disappearance of the light requirement. '
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Edraianthus p. 32. 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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