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Calydorea pallens

Family IridaceaeGenus Calydorea

A pale lilac six-petalled flower with purple speckles and yellow anthers among grass
FlowerAnalía BelausCC0

About the plant

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

Habit
bulbous geophytePlants of the World Online
Flower
Pale lilacRead from the photograph on this page
Native range
Argentina Northeast, Argentina NorthwestGBIF 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.

This source reports two treatments. Both are shown.

Protocol 1

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

Start around March 15, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Then 21 days to germinate.

100% germination in 21 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Calydorea p. 21Public domain
Show the original text
Calydorea (Iridaceae). Except for C. pallens germ. 70L(6/6 in 3rd w) and 70D-40-70D(1/6 in 2nd w). This latter sample was then shifted to 70L whereupon the remaining 5 germ. in the 2nd w.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Calydorea p. 21. 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, 1998

Difficulty High Rated by us, not by the source.

Start around September 24, 2027 for a May 3 last frost. Too late for spring 2027 — that needed starting on September 23, 2026.

  1. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

  3. Warm moist stratification

    Duration: 90 daysTemperature: 70°F 21°C Light: dark

about 6 months from start to step 3. Germination happens during step 3, in 14 days.

17% germination in 14 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Calydorea p. 21Public domain
Show the original text
Calydorea (Iridaceae). Except for C. pallens germ. 70L(6/6 in 3rd w) and 70D-40-70D(1/6 in 2nd w). This latter sample was then shifted to 70L whereupon the remaining 5 germ. in the 2nd w.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Calydorea p. 21. 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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