Deno’s Garden

Alonsoa linearis

Family ScrophulariaceaeGenus Alonsoa

A scarlet flower with a yellow throat on a wiry stem, buds behind
FlowerCarlo BresciaCC BY-SA 4.0

About the plant

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

Native range
Bolivia, Ecuador, Peru

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 two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1993

Difficulty Low 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.

90% germination in 12–15 days.

Light and GA-3 both made no difference.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Alonsoa p. 92Public domain
Show the original text
Alonsoa (Scrophulariaceae). A linearis germ. 70(90-100% in 12-15 d) and 40(4%)-70(1%). Light or GA-3 had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Alonsoa p. 92. 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 Very high Rated by us, not by the source.

Start around December 15, 2026 for a May 3 last frost.

  1. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  2. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C

    A further 1% germinated after the shift to 70.

Steps after step 1 run on after germination.

about 3 months from start to sowing. Germination time not stated; 21 days assumed.

4% germination.

A cold period wastes nine months and almost all the seed.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Alonsoa p. 92Public domain
Show the original text
Alonsoa (Scrophulariaceae). A linearis germ. 70(90-100% in 12-15 d) and 40(4%)-70(1%). Light or GA-3 had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Alonsoa p. 92. 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.