United States / Grow / Jacob's-ladders

Jacob's-ladders Polemonium

This hub compares 2 species records. Across all 3 records, it carries 10 evidence rows from 8 distinct cited sources. The species split is 1 fire-resistant and 1 awaiting directional evidence. 1 genus-rank record is shown separately; genus-rank claims do not override a species record, and species evidence does not become one verdict for the genus.

Rated as a group: Jacob's-ladder Polemonium Fire-resistant Consensus 8 sources rate the genus as a whole. Species evidence never rolls upward into a genus verdict, and genus claims never override a species record. ›

Fire-resistant: 1 species

Greek valerian Fire-resistant Polemonium reptans Limited evidence · 1 source Zones 3–8 genus-level claims ↑

Awaiting evidence: 1 species

western polemonium Awaiting evidence Polemonium occidentale Limited evidence · 1 source genus-level claims ↑

About jacob's-ladders

Directory notes

Plant forms recorded in this group: perennial. The records span published USDA zones 3–8. These are record-level fields, not a whole-genus flammability claim.

More about Polemonium: Wikipedia — external references; not evidence sources.

Where rated jacob's-ladders grow

Tagged as growing in 36 states.

See Polemonium on Grow → · JSON