Deno’s Garden

Adenium obesum

Desert Rose · Impala Lily · Mock Azalea

Family ApocynaceaeGenus Adenium

A squat swollen-trunked shrub with bare branches carrying pink flowers
The whole plantZSMCC BY-SA 4.0

About the plant

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

Native range
Benin, Burkina, Burundi, Cameroon, Chad, Ethiopia and elsewhere

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

Source: GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

This source reports three treatments. All are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Moderate Rated by us, not by the source.

Start around March 21, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: either

No stated waiting before sowing. Then 15 days to germinate.

40% germination in 12–15 days.

Light made no difference.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Adenium p. 88Public domain
Show the original text
Adenium (Apocyanaceae). A. obesum germ. 40% in 12-15 d in either 70D or 70L. All seeds rotted when treated with GA-3 or when started at 40.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Adenium p. 88. 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
  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

about 3 months from start to sowing.

0% germination.

Every seed rotted.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Adenium p. 88Public domain
Show the original text
Adenium (Apocyanaceae). A. obesum germ. 40% in 12-15 d in either 70D or 70L. All seeds rotted when treated with GA-3 or when started at 40.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Adenium p. 88. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.

Protocol 3

DerivedN. C. Deno, 1993
  1. Gibberellic acid soak

  2. Sow and cover

    Temperature: 70°F 21°C

No stated waiting before sowing.

0% germination.

Every seed rotted.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Adenium p. 88Public domain
Show the original text
Adenium (Apocyanaceae). A. obesum germ. 40% in 12-15 d in either 70D or 70L. All seeds rotted when treated with GA-3 or when started at 40.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Adenium p. 88. Quoted exactly. Every value on this card comes from this record; the step names come from a fixed list.