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Polemonium caeruleum
  • Jacob's Ladder

a perennial member of the Polemonium genus in the family Polemoniaceae.

248px
Niche
  • Unknown
    Unknown
    The ecosystem niches for this plant are unknown. Do you know them? Click the edit button to add them!
Functions
  • None
    None
    There are no functions defined for this plant. Do you know of some? Click the edit button to add them!
Light
  • Full sun
    Full sun
    The amount of sun exposure that a plant prefers in ideal conditions.
    Key
  • light shade
    Light shade
    The amount of shade a plant will tolerate without adverse health affects.
    Key
Water
  • Water Requirementsmoderate
    Moderate
    The amount of water a plant needs for healthy growth, relative to other plants.
    Key
Soil
  • acid,neutral,alkaline
    Acid to Alkaline
    The PH range (acidity or alkilinity) of the growth medium ideal for healthy nutrient absorbtion.
    Key
  • Sandy to Loamy
    The soil texture this plant prefers for optimal growth.
    Key
Cold & Heat
  • 2
    Zone 2
    The USDA Hardiness scale assigns plants a number from 1 to 12 representing the minimum temperature a plant can survive.
    Key
    0< -53.9ºC< -65ºF
    1-51.1ºC-60ºF
    2-45.6ºC-50F
    3-40ºC-40ºF
    4-34.4ºC-30ºF
    5-28.9ºC-20ºF
    6-23.3ºC-10ºF
    7-17.8ºC0ºF
    8-12.2C10ºF
    9-6.7ºC20ºF
    10-1.1ºC30ºF
    114.4ºC40ºF
    12> 10ºC> 5ºF
  • ?
    Unknown
    The AHS Heat scale assigns plants a number from 1 to 12 representing the number of days per year a plant requires a temperature exceeding 30ºC (86ºF).
    Key
    11
    21 - 7
    38 - 14
    415 - 30
    531 - 45
    646 - 60
    761 - 90
    891 - 120
    9121 - 150
    10151 - 180
    11181 - 210
    12181 - 210
Polemonium caeruleum has 0 medicinal uses listed

Uses

Edible uses

There are no edible uses listed for Polemonium caeruleum.

Material uses

There are no material uses listed for Polemonium caeruleum.

Medicinal uses(Warning!)

The herb is astringent and diaphoretic[1][2]. It was formerly used internally in the treatment of a wide range of conditions ranging from headaches to fevers and epilepsy[3]. The plant is harvested in the summer and dried for later use[3].

Unknown part

Astringent
Diaphoretic

Ecology

Ecosystem niche/layer

Ecological Functions

Nothing listed.

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - sow spring in a cold frame[4]. Another report says that the seed is best sown in a cold frame in the autumn[5]. When they are large enough to handle, prick the seedlings out into individual pots and plant them out in the summer. Division in early spring or early autumn[6]. Larger divisions can be planted out direct into their permanent positions. We have found that it is better to pot up the smaller divisions and grow them on in light shade in a cold frame until they are well established before planting them out in late spring or early summer.

Practical Plants is currently lacking information on propagation instructions of Polemonium caeruleum. Help us fill in the blanks! Edit this page to add your knowledge.



Cultivation

A very easily grown plant, it prefers a moist well-drained fertile soil in sun or semi-shade[7][6][8]. Dislikes damp or heavy soils[6], though it tolerates alkaline conditions[3].

Hardy to at least -20°c[9]. A polymorphic species, there are several sub-species[9] and many named forms[3]. Plants are fairly short-lived in cultivation unless they are divided regularly and moved to fresh soil[10]. They can self-sow to the point of nuisance, however[9][8] and will also survive when growing in lush grass[9].

Cats are strongly attracted by the smell of this plant and will frequently roll on it and injure it[1].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Polemonium caeruleum. Do you know of an interaction that should be listed here? edit this page to add it.

Polycultures & Guilds

There are no polycultures listed which include Polemonium caeruleum.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Polemonium caeruleum
Genus
Polemonium
Family
Polemoniaceae
Imported References
Edible uses
Medicinal uses
[1][2][3]
Material uses & Functions
Botanic
[11][8]
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Provides forage for
Provides shelter for
Environment
Hardiness Zone
2
Heat Zone
?
Water
moderate
Sun
full sun
Shade
light shade
Soil PH
acid, neutral, alkaline
Soil Texture
sandy, loamy
Soil Water Retention
well drained
Environmental Tolerances
    Ecosystems
    Native Climate Zones
    None listed.
    Adapted Climate Zones
    None listed.
    Native Geographical Range
    None listed.
    Native Environment
    None listed.
    Ecosystem Niche
    None listed.
    Root Zone Tendancy
    None listed.
    Life
    Deciduous or Evergreen
    ?
    Herbaceous or Woody
    ?
    Life Cycle
    perennial
    Growth Rate
    ?
    Mature Size
    0.4 x 0.4 meters
    Fertility
    ?
    Pollinators
    Bees
    Flower Colour
    ?
    Flower Type
    hermaphrodite

    "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki. "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki. "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki.

    "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki. "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki.


    "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki.

    "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki.

    "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki., "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki., "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki. "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki., "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki. "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki. "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki.






    References

    1. ? 1.01.11.2 Grieve. A Modern Herbal. Penguin ISBN 0-14-046-440-9 (1984-00-00)
    2. ? 2.02.1 Usher. G. A Dictionary of Plants Used by Man. Constable ISBN 0094579202 (1974-00-00)
    3. ? 3.03.13.23.33.4 Bown. D. Encyclopaedia of Herbs and their Uses. Dorling Kindersley, London. ISBN 0-7513-020-31 (1995-00-00)
    4. ? Holtom. J. and Hylton. W. Complete Guide to Herbs. Rodale Press ISBN 0-87857-262-7 (1979-00-00)
    5. ? Brickell. C. The RHS Gardener's Encyclopedia of Plants and Flowers Dorling Kindersley Publishers Ltd. ISBN 0-86318-386-7 (1990-00-00)
    6. ? 6.06.16.2 Sanders. T. W. Popular Hardy Perennials. Collingridge (1926-00-00)
    7. ? F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
    8. ? 8.08.18.2 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    9. ? 9.09.19.29.3 Phillips. R. & Rix. M. Perennials Volumes 1 and 2. Pan Books ISBN 0-330-30936-9 (1991-00-00)
    10. ? Thomas. G. S. Perennial Garden Plants J. M. Dent & Sons, London. ISBN 0 460 86048 8 (1990-00-00)
    11. ? Clapham, Tootin and Warburg. Flora of the British Isles. Cambridge University Press (1962-00-00)

    "image:Polemonium caeruleum nf.jpg|248px" cannot be used as a page name in this wiki.

    Retrieved from "https://practicalplants.org/w/index.php?title=Polemonium_caeruleum&oldid=79534"
    Facts about "Polemonium caeruleum"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyPolemoniaceae +
    Belongs to genusPolemonium +
    Has binomial namePolemonium caeruleum +
    Has common nameJacob's Ladder +
    Has drought toleranceIntolerant +
    Has fertility typeBees +
    Has flowers of typeHermaphrodite +
    Has hardiness zone2 +
    Has imagePolemonium caeruleum nf.jpg +
    Has lifecycle typePerennial +
    Has mature height0.4 +
    Has mature width0.4 +
    Has medicinal partUnknown part +
    Has medicinal useAstringent + and Diaphoretic +
    Has primary imagePolemonium caeruleum nf.jpg +
    Has search namepolemonium caeruleum + and jacob's ladder +
    Has shade toleranceLight shade +
    Has soil ph preferenceAcid +, Neutral + and Alkaline +
    Has soil texture preferenceSandy + and Loamy +
    Has soil water retention preferenceWell drained +
    Has sun preferenceFull sun +
    Has taxonomic rankSpecies +
    Has taxonomy namePolemonium caeruleum +
    Has water requirementsmoderate +
    Is taxonomy typeSpecies +
    PFAF cultivation notes migratedNo +
    PFAF edible use notes migratedYes +
    PFAF material use notes migratedYes +
    PFAF medicinal use notes migratedNo +
    PFAF propagation notes migratedNo +
    PFAF toxicity notes migratedYes +
    Tolerates nutritionally poor soilNo +
    Uses mature size measurement unitMeters +
    Has subobjectThis property is a special property in this wiki.Polemonium caeruleum + and Polemonium caeruleum +