FlowerviridianCC0About the plant
What it is and where it grows — not part of any germination protocol.
- Habit
- perennialPlants of the World Online
- Flower
- Violet-blueRead from the photograph on this page
- Native range
- Albania, Bulgaria, East Aegean Is., Greece, Italy, NW. Balkan Pen. 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; Read from the photograph on this page — Deno's Garden; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.
Two sources report 5 treatments between them. All are shown.
Protocol 1
DerivedN. C. Deno, 1998Difficulty 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: dark
No stated waiting before sowing. Then 21 days to germinate.
70% germination in 7–21 days.
Protocol 2
DerivedN. C. Deno, 1998Difficulty Moderate 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.
44% germination in 7–21 days.
Protocol 3
DerivedN. C. Deno, 1998Difficulty Moderate Rated by us, not by the source.
Start around December 15, 2026 for a May 3 last frost.
- 1
Cold moist stratification
Duration: 90 days · Temperature: 40°F 4°C
20 germinated in this phase.
- 2
Warm moist stratification
Duration: 90 days · Temperature: 70°F 21°C · Light: dark
about 3 months from start to step 2. Germination happens during step 2; time not stated, 21 days assumed.
30% germination.
Protocol 4
DerivedN. C. Deno, 1996Difficulty Moderate 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. Then 21 days to germinate.
68% germination in 7–21 days.
Protocol 5
DerivedN. C. Deno, 1996Difficulty 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.
33% germination in 14 days.
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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