Deno’s GardenMy Garden

Ixia viridiflora

Azure Kalossie · Green Ixia · Green Kalossie

Family IridaceaeGenus Ixia

Pale blue-green flowers with near-black centers, opening along branching stems
FlowerHelenaHCC BY-SA 3.0

About the plant

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

Habit
tuberous geophytePlants of the World Online
Flower
Blue-greenRead from the photograph on this page
Native range
Cape 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.

Worth knowing

  • The turquoise ixia is named for the blue-green color of its flowers, a rare color among flowers. It grows around Tulbagh in South Africa, is very rare, and is listed as vulnerable because its habitat is being destroyed. Wikipedia: Ixia viridiflora

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 February 8, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C

Germination happens during step 1, in 56 days.

100% germination in 35–56 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Ixia p. 40Public domain
Show the original text
Ixia (Iridaceae). The seeds were all DS 6 m unless otherwise indicated. I. viridifiora germ. 70D(77% in 2-9 w)-40(4%), 70L(none), and 40(100% in 5-8 w). When the sample in 70L was shifted to 70D after 9 w, 45% germ. in 2 d-4 w.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Ixia p. 40. 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 Moderate Rated by us, not by the source.

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

  1. Warm moist stratification

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

  2. Cold moist stratification

    Duration: 90 daysTemperature: 40°F 4°C

    4 germinated in this phase.

Steps after step 1 run on after germination.

Germination happens during step 1, in 63 days.

77% germination in 14–63 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Ixia p. 40Public domain
Show the original text
Ixia (Iridaceae). The seeds were all DS 6 m unless otherwise indicated. I. viridifiora germ. 70D(77% in 2-9 w)-40(4%), 70L(none), and 40(100% in 5-8 w). When the sample in 70L was shifted to 70D after 9 w, 45% germ. in 2 d-4 w.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Ixia p. 40. 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

Add to My Garden

View species page