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Babiana tubulosa

Granite Trumpet Bobbejaantjie

Family IridaceaeGenus Babiana

Star-shaped white flowers with a red mark at the base of each petal, among long pleated leaves on bare soil
FlowerGail A BakerCC BY 4.0
A hand-colored plate of a fan of long ribbed leaves with a spray of cream flowers marked crimson at the base, captioned as Gladiolus tubatus
IllustrationPierre-Joseph RedoutéPublic domain

About the plant

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

Habit
tuberous geophytePlants of the World Online
Flower
White, redRead 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

  • This babiana is endemic to the fynbos of the Western Cape, from Vredenburg to Mamre, in about twenty subpopulations. Those that remain are threatened by development on the Vredenburg Peninsula, around places such as Saldanha and Langebaan. Wikipedia: Babiana tubulosa

Protocol

DerivedN. C. Deno, 1998

Difficulty Low Rated by us, not by the source.

  1. Sow and cover

    Temperature: 70°F 21°C Light: dark

No stated waiting before sowing. Then 56 days to germinate.

100% germination in 28–56 days.

Seed Germination Theory and Practice, 2nd Supplement — N. C. Deno, 1998 · 2nd Supplement, Babiana p. 17Public domain
Show the original text
Babiana (Iridaceae). In the three species studied germination was significantly lower in light, and when the sample in 70L was shifted to 70D, the remaining seeds germ. All three samples were of seeds DS 6 m. B. tubulosa germ. 70D(3/3 in 4-8 w) and 70L(none in 6 w). When the sample in 70L was shifted to 70D after 6 w, 3/3 germ. in the 6th w.
Seed Germination Theory and Practice, 2nd Supplement, 2nd Supplement, Babiana p. 17. 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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