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Fritillaria gentneri

Gentner's Fritillary

Family LiliaceaeGenus Fritillaria

Three nodding bells, deep red-purple outside and chequered orange-red within
FlowerUnknown authorUnknown authorPublic domain

About the plant

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

Habit
bulbous geophytePlants of the World Online
Habit
Perennial, Forb/herbPLANTS Database
Flower
Red, purpleFlora of North America
Native range
OregonGBIF 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; PLANTS Database — USDA NRCS; Flora of North America — Flora of North America Editorial Committee; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • Gentner's fritillary is a rare lily of southwest Oregon and neighboring Siskiyou County, California, listed as endangered by the U.S. Fish and Wildlife Service in 1999. There is some evidence that it may be a hybrid of Fritillaria affinis and Fritillaria recurva. Wikipedia: Fritillaria gentneri

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 January 25, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 70 days.

50% germination in 56–70 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Fritillaria p. 144Public domain
Show the original text
Fritillaria (Liliaceae). This genus germ. primarily at 40. Sometimes this had to be preceded by a cycle at 70 making the species a 70-40 germinator. The seedlings did not always develop, and it is probable that this was the result of shifting them to 70 too suddenly. More study is needed on this problem. Some species showed intolerance to DS, particularly F. gantneri germ. 40(4/8 in 8-10w) and 70-40(2/5 in 9-11 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Fritillaria p. 144. 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 Moderate Rated by us, not by the source.

Start around October 21, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on October 20, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 3 months from start to step 2. Germination happens during step 2, in 77 days.

40% germination in 63–77 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Fritillaria p. 144Public domain
Show the original text
Fritillaria (Liliaceae). This genus germ. primarily at 40. Sometimes this had to be preceded by a cycle at 70 making the species a 70-40 germinator. The seedlings did not always develop, and it is probable that this was the result of shifting them to 70 too suddenly. More study is needed on this problem. Some species showed intolerance to DS, particularly F. gantneri germ. 40(4/8 in 8-10w) and 70-40(2/5 in 9-11 w).
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Fritillaria p. 144. 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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