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Abies borisii-regis

Bulgarian Fir

Family PinaceaeGenus Abies

A long barrel-shaped cone beside a bare cone spike, a fallen cone and loose scales with winged seeds, laid out against a ruler.
SeedMPFCC BY-SA 3.0
Abies borisii-regis, Vihren, Pirin Mountains, Bulgaria
The whole plantKikosevCC BY 3.0

About the plant

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

The plant

Habit
Perennial, TreeNotes from web searches
Height
130-160 ft40-49 mNotes from web searches
Spread
3-10 ft0.9-3 mNotes from web searches
Native range
Albania, Bulgaria, Greece, NW. Balkan Pen.GBIF Backbone Taxonomy
Hardiness zones
5-7Notes from web searches
Note
Cool, humid, mountain climateNotes from web searches

Growing conditions

Sun
Full sunNotes from web searches
Soil
Well-drained, fertile soilNotes from web searches
Soil pH
5.5-7Notes from web searches
Organic matter
HighNotes from web searches
Moisture
Does not require excess moistureNotes from web searches
Watering
Regular watering, more during dry periodsNotes from web searches

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

Sources: Notes from web searches — Amir Abed; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • Bulgarian fir grows in the mountains of the Balkans to 40 to 50 m tall, exceptionally 60 m. Some botanists treat it as a natural hybrid of silver fir and Greek fir, others as a variety of silver fir. Wikipedia: Abies × borisii-regis

Protocol

DerivedN. C. Deno, 1998

Difficulty High Rated by us, not by the source.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

Steps after step 1 run on after germination.

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

23% germination.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Abies p. 10Public domain
Show the original text
Abies (Pinaceae). Grateful acknowledgement is made to Schumacher Seed Company of MA for a gift of fifteen species of this genus. All fifteen germ. at 70D albeit somewhat slowly with germination taking place in 5-10 weeks. Some gave slightly greater percent germination with light or in a 40-70D pattern, but, GA-3, OS, or OT had no significant effects. Some germ. at 40. A significant number of the seeds rotted indicating ,that they were dead.'but there was no simple way of detecting such seeds from outward appearance nor of separating them. The seeds of all .fifteen species were largely viable and producing healthy seedlings. SUMMARY OF RESULTS ON FIFTEEN SPECIES OF ABIES Species ' Germination in 70D 40-70D Results ((cc)) Percent Time A. boris-regis 20% 7-11 weeks 40(23%)-70 0
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Abies p. 10. 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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