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Saxifraga cotyledon

Pyramidal Saxifrage

Family SaxifragaceaeGenus Saxifraga

A branched spray of small white flowers on red stalks, rising from rosettes of lime-edged leaves wedged in a rock face below a green ridge.
FlowerBanangrautCC BY-SA 3.0

About the plant

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

Habit
subshrubPlants of the World Online
Flower
WhiteWikipedia
Native range
Austria, France, Iceland, Italy, Norway, Spain and elsewhereGBIF 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; Wikipedia — Wikipedia contributors; GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • The pyramidal saxifrage is one of Norway's two national flowers, chosen in 1935; the other is heather, Calluna. Its tall, pyramid-shaped sprays of white flowers can reach 60 cm. Wikipedia: Saxifraga cotyledon

Protocol

DerivedN. C. Deno, 1996

Difficulty Very high Rated by us, not by the source.

  1. Sow and cover

    Temperature: 70°F 21°C Light: light

No stated waiting before sowing. Germination time not stated; 21 days assumed.

2% germination.

Seed Germination Theory and Practice, 1st Supplement — N. C. Deno, 1996 · 1st Supplement, Saxifraga p. 76Public domain
Show the original text
Saxifraga (Saxifragaceae). Where death rates were measured it was found that the seeds died rapidly in DS. Thus many of the past failures in this genus can possibly be the result of old seed. S. cotyledon germ. 70L(2%) and failed to germinate in all other treatments. Seeds were dead after 1 y of DS.
Seed Germination Theory and Practice, 1st Supplement, 1st Supplement, Saxifraga p. 76. 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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