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Brugmansia suaveolens

Angel's Tears · Angel's-trumpet · White Angel's-trumpet · Angel's-tears

Family SolanaceaeGenus Brugmansia

Many large white trumpet flowers hanging from a shrub among broad green leaves
FlowerAris riyantoCC BY-SA 4.0

About the plant

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

Habit
shrub or treePlants of the World Online
Habit
Perennial, Shrub, TreePLANTS Database
Flower
WhiteWikipedia

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; Wikipedia — Wikipedia contributors.

Worth knowing

  • Thought to be extinct in the wild in its native southeastern Brazil. The flowers hang half-closed by day and become fragrant in the evening to draw the moths that pollinate them. Wikipedia: Brugmansia suaveolens

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1996

Difficulty Moderate Rated by us, not by the source.

Start around April 1, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 4 days to germinate.

45% germination in 4 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Datura p. 36Public domain
Show the original text
Datura (Solanaceae). The seeds are sometimes enclosed in a berry. Commercial samples sometimes had the dried berry still intact. It was always removed in the following experiments, and germination was poor without this removal. D. suaveolens germ. 70L(5/11 on 4th d) and 70D(1/8 on 4th d) providing the remnants of the dried berry are removed. None germ. otherwise.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Datura p. 36. 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, 1996

Difficulty High Rated by us, not by the source.

Start around April 1, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 4 days to germinate.

12% germination in 4 days.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Datura p. 36Public domain
Show the original text
Datura (Solanaceae). The seeds are sometimes enclosed in a berry. Commercial samples sometimes had the dried berry still intact. It was always removed in the following experiments, and germination was poor without this removal. D. suaveolens germ. 70L(5/11 on 4th d) and 70D(1/8 on 4th d) providing the remnants of the dried berry are removed. None germ. otherwise.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Datura p. 36. 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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