+ Add to My Garden
About the plant What it is and where it grows — not part of any germination protocol.
Habit perennial or rhizomatous geophyte Plants of the World Online
Habit Perennial, Forb/herb PLANTS Database
Flower Deep lemon-yellow, brownish purple Flora of North America
Native range Alberta, Arizona, Colorado, Idaho, Kansas, Manitoba and elsewhere GBIF 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 Nuttall's violet, named for the botanist Thomas Nuttall, is one of the few violets with lance-shaped leaves. Its bright yellow flowers carry purple only in the nectar guides in the throat. Wikipedia: Viola nuttallii This source reports three treatments. All are shown.
Protocol 1 N. C. Deno, 1996 Difficulty Low Rated by us, not by the source.
1 Sow outdoors and leave it
Up in April.
No stated waiting before sowing.
70% germination.
This source doesn't state how long step 1 lasts.
Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Viola p. 86Public domain Show the original text Viola (Violaceae). Four species of rosulate Violas from the Andes germ. only in 40 GA-3 (2nd Ed.). A most important new result is that all four samples germ. identically after fours years of DS. This shows that these have considerable longevity in DS in contrast to species native to Eastern U. V. nuttallii germ. 40(60% in 8-10 w), 70 GA-3(30% in 7th w), and 70% in April in OT. The seeds all rotted in 70D and 70L. Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Viola p. 86. 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 N. C. Deno, 1996 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.
60% germination in 56–70 days.
Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Viola p. 86Public domain Show the original text Viola (Violaceae). Four species of rosulate Violas from the Andes germ. only in 40 GA-3 (2nd Ed.). A most important new result is that all four samples germ. identically after fours years of DS. This shows that these have considerable longevity in DS in contrast to species native to Eastern U. V. nuttallii germ. 40(60% in 8-10 w), 70 GA-3(30% in 7th w), and 70% in April in OT. The seeds all rotted in 70D and 70L. Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Viola p. 86. 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 N. C. Deno, 1996 Difficulty Moderate Rated by us, not by the source.
Start around February 15, 2027 for a May 3 last frost.
1 2 Sow and cover
Temperature: 70°F 21°C
No stated waiting before sowing. Then 49 days to germinate.
30% germination in 49 days.
Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Viola p. 86Public domain Show the original text Viola (Violaceae). Four species of rosulate Violas from the Andes germ. only in 40 GA-3 (2nd Ed.). A most important new result is that all four samples germ. identically after fours years of DS. This shows that these have considerable longevity in DS in contrast to species native to Eastern U. V. nuttallii germ. 40(60% in 8-10 w), 70 GA-3(30% in 7th w), and 70% in April in OT. The seeds all rotted in 70D and 70L. Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Viola p. 86. 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
No trials shared for this species yet.
