Deno’s GardenMy Garden

Trachelium rumelicum

Throatwort

Family CampanulaceaeGenus Trachelium

Leafy stems trailing down a limestone cliff, tipped with round heads of pale blue flowers
The whole plantVasileia SefCC BY 4.0

About the plant

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

Flower
Pale lavender-blueRead from the photograph on this page

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

Source: Read from the photograph on this page — Deno's Garden.

This source reports three 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. Sow and cover

    Temperature: 70°F 21°C Light: light

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

82% germination in 7–21 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Trachelium p. 222Public domain
Show the original text
Trachelium (Campanulaceae). T. rumelicum germ. best in 70L(82% in 1-3 w) and less in 70D(7%) and 40(5%)-70(5%). Seeds treated with GA-3 were killed.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Trachelium p. 222. 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 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.

7% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Trachelium p. 222Public domain
Show the original text
Trachelium (Campanulaceae). T. rumelicum germ. best in 70L(82% in 1-3 w) and less in 70D(7%) and 40(5%)-70(5%). Seeds treated with GA-3 were killed.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Trachelium p. 222. 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 Very high Rated by us, not by the source.

Start around March 15, 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

    5 germinated in this phase.

Steps after step 1 run on after germination.

Germination happens during step 1; time not stated, 21 days assumed.

5% germination.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Trachelium p. 222Public domain
Show the original text
Trachelium (Campanulaceae). T. rumelicum germ. best in 70L(82% in 1-3 w) and less in 70D(7%) and 40(5%)-70(5%). Seeds treated with GA-3 were killed.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Trachelium p. 222. 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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