Deno’s Garden

Adenophora triphylla

Three-leaf Ladybell · Whorled-leaf Ladybell · Giant-bellflower

Family CampanulaceaeGenus Adenophora

Also published as Adenophora kurilensis. You are in the right place.

White bell flowers hanging in a whorl from a green stem
FlowerΣ64CC BY 4.0

About the plant

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

Native range
Amur, Buryatiya, China North-Central, China South-Central, China Southeast, Chita and elsewhere

Toxicity is noted only where a source states it. No note here is not a finding of safety.

Source: 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 March 15, 2027 for a May 3 last frost.

  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 21 days to germinate.

46% germination in 21 days.

Nothing germinated in the dark without GA-3.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Adenophora p. 88Public domain
Show the original text
Adenophora (Campanulaceae). A. kurilensis germ. 70L(17% in 2nd w), 70D GA-3(46% in 3rd w), and 700(none).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Adenophora p. 88. 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 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.

17% germination in 14 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Adenophora p. 88Public domain
Show the original text
Adenophora (Campanulaceae). A. kurilensis germ. 70L(17% in 2nd w), 70D GA-3(46% in 3rd w), and 700(none).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Adenophora p. 88. 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.