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Nemesia umbonata

Family ScrophulariaceaeGenus Nemesia

Two-lipped flowers, deep blue below and white above, on a slender stem among green leaves
FlowerPictured: Nemesia barbata, a relativeVicente LopesCC BY 4.0

About the plant

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

Habit
perennialPlants of the World Online
Flower
Blue, whiteRead from the photograph on this page
Native range
Cape Provinces, Eswatini, Free State, KwaZulu-Natal, Lesotho, Northern ProvincesGBIF 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.

Protocol

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 28 days.

100% germination in 28 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Nemesia p. 49Public domain
Show the original text
Nemesia (Scrophulariaceae). Data is now complete on the following. N. sp. mixed germ. 70L(54% in 6-9 d) and 70D(28% in 8-10 d). It is now found that a prior 3 m at 40 killed the seeds. Seeds DS 1 y germ. only 14% in 2nd w at 70 indicating a half life in DS at 70 of about 9 m. N. umbonata germ. 100% in 4-10 d in either 70D or 70L. It is now found that it also germ. 40(100% in 4th w).
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Nemesia p. 49. 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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