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Valeriana rubra

Bovisand-sailor · Jupiter's Beard · Pretty Betsy · Red Valerian

Family CaprifoliaceaeGenus Valeriana

Also published as Centranthus ruber. You are in the right place.

Domed heads of small pink flowers on tall square stems with paired gray-green leaves, growing out of white limestone rubble.
The whole plantRobert Flogaus-FaustCC BY 4.0

About the plant

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

Habit
perennialPlants of the World Online
Habit
Perennial, Forb/herb, SubshrubPLANTS Database
Flower
White, redFlora of Pakistan
Native range
FlandersGBIF 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; PLANTS Database — USDA NRCS; Flora of Pakistan — S. I. Ali and M. Qaiser (eds.); GBIF Backbone Taxonomy — Global Biodiversity Information Facility.

Worth knowing

  • It tolerates the lime in mortar, and is often seen growing on old walls in Italy, southern France and southwest Britain. Wikipedia: Valeriana rubra

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 February 22, 2027 for a May 3 last frost.

  1. Cold moist stratification

    Temperature: 40°F 4°C Light: either

Germination happens during step 1, in 42 days.

100% germination in 28–42 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Centranthus p. 116Public domain
Show the original text
Centranthus (Valerianaceae). C. ruber germ. 70(100% on the 3rd d) and 40(100% in 4-6 w). Light had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Centranthus p. 116. 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 Low Rated by us, not by the source.

Start around April 2, 2027 for a May 3 last frost.

  1. Sow and cover

    Temperature: 70°F 21°C Light: either

No stated waiting before sowing. Then 3 days to germinate.

100% germination in 3 days.

Seed Germination Theory and Practice, 2nd ed. — N. C. Deno, 1993 · Ch. 20, Centranthus p. 116Public domain
Show the original text
Centranthus (Valerianaceae). C. ruber germ. 70(100% on the 3rd d) and 40(100% in 4-6 w). Light had no effect.
Seed Germination Theory and Practice, 2nd ed., Ch. 20, Centranthus p. 116. 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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