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Ceanothus purpureus
  • Hollyleaf Ceanothus

a perennial woody evergreen member of the Ceanothus genus in the family Rhamnaceae.

Niche
  • Soil surface
    Soil surface
    There are no details available for this niche.
Functions
  • Ground cover
    Ground cover
    There are no details available for this function.
  • Nitrogen fixer
    Nitrogen fixer
    There are no details available for this function.
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
  • 8
    Zone 8
    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
Ceanothus purpureus has 0 material uses listed

Uses

Edible uses

There are no edible uses listed for Ceanothus purpureus.

Material uses

A green dye is obtained from the flowers[1].

All parts of the plant are rich in saponins - when crushed and mixed with water they produce a good lather which is an effective and gentle soap[1][2]. This soap is very good at removing dirt, though it does not remove oils very well. This means that when used on the skin it will not remove the natural body oils, but nor will it remove engine oil etc[K] The flowers are a very good source, when used as a body soap they leave behind a pleasant perfume on the skin[K]. The developing seed cases are also a very good source of saponins[K].

The spreading forms of this species make a useful ground cover, especially on warm sunny slopes[3].

Unknown part

Dye
Soap

Medicinal uses(Warning!)

There are no medicinal uses listed for Ceanothus purpureus.

Ecology

Ecosystem niche/layer

Soil surface

Ecological Functions

Ground cover


Nitrogen fixer

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - best sown as soon as it is ripe in a cold frame. Stored seed should be pre-soaked for 12 hours in warm water and then given 1 - 3 months stratification at 1°c[4][3]. Germination usually takes place within 1 - 2 months at 20°c[4]. One report says that the seed is best given boiling water treatment, or heated in 4 times its volume of sand at 90 - 120°c for 4 - 5 minutes and then soaked in warm water for 12 hours before sowing it[5]. The seed exhibits considerable longevity, when stored for 15 years in an air-tight dry container at 1 - 5°c it has shown little deterioration in viability[5]. The seed is ejected from its capsule with some force when fully ripe, timing the collection of seed can be difficult because unless collected just prior to dehiscence the seed is difficult to extract and rarely germinates satisfactorily[5]. Prick out the seedlings into individual pots as soon as they are large enough to handle. Grow them on in the greenhouse for at least their first winter and plant them out into their permanent positions in late spring or early summer. Plants usually produce an abundance of seed in British gardens[6].

Cuttings of half-ripe wood, taken at a node[3], July/August in a frame[6]. This species is difficult to root[3].

Cuttings of mature wood of the current year's growth, 7 - 12 cm with a heel, October in a cold frame[7]. The roots are quite brittle and it is best to pot up the callused cuttings in spring, just before the roots break[7]. This species is difficult to root[3].

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



Cultivation

Prefers a warm sunny position but tolerates light shade[6][3]. Requires a well-drained soil[6]. Tolerates some lime, but will not succeed on shallow chalk[3].

Plants are not fully hardy at Kew Botanical Gardens, though they succeed outdoors to the south and west of London[6]. Plants dislike root disturbance, they should be planted out into their permanent positions whilst still small[8]. Dislikes heavy pruning, it is best not to cut out any wood thicker than a pencil[8]. Plants flower on the previous year's growth, if any pruning is necessary it is best carried out immediately after flowering has finished[3]. Constant pruning to keep a plant small can shorten its life[3][9]. Fast growing, it flowers well when young, often in its second year from seed[6]. Hybridizes freely with other members of this genus[3].

Some members of this genus have a symbiotic relationship with certain soil micro-organisms, these form nodules on the roots of the plants and fix atmospheric nitrogen. Some of this nitrogen is utilized by the growing plant but some can also be used by other plants growing nearby[3][10].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Ceanothus purpureus. 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 Ceanothus purpureus.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Ceanothus purpureus
Genus
Ceanothus
Family
Rhamnaceae
Imported References
Edible uses
Medicinal uses
Material uses & Functions
[1][2][3]
Botanic
[6][11][3]
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Ground cover, Nitrogen fixer
Provides forage for
Provides shelter for
Environment
Hardiness Zone
8
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
    Soil surface
    Root Zone Tendancy
    None listed.
    Life
    Deciduous or Evergreen
    evergreen
    Herbaceous or Woody
    woody
    Life Cycle
    perennial
    Growth Rate
    ?
    Mature Size
    2 x meters
    Fertility
    ?
    Pollinators
    Bees
    Flower Colour
    ?
    Flower Type
    hermaphrodite











    References

    1. ? 1.01.11.2 Grae. I. Nature's Colors - Dyes from Plants. MacMillan Publishing Co. New York. ISBN 0-02-544950-8 (1974-00-00)
    2. ? 2.02.1 Buchanan. R. A Weavers Garden. ()
    3. ? 3.003.013.023.033.043.053.063.073.083.093.103.113.12 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    4. ? 4.04.1 Bird. R. (Editor) Growing from Seed. Volume 3. Thompson and Morgan. (1989-00-00)
    5. ? 5.05.15.2 Matthews. V. The New Plantsman. Volume 1, 1994. Royal Horticultural Society ISBN 1352-4186 (1994-00-00)
    6. ? 6.06.16.26.36.46.56.6 Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray (1981-00-00)
    7. ? 7.07.1 Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co (1948-00-00)
    8. ? 8.08.1 Thomas. G. S. Ornamental Shrubs, Climbers and Bamboos. Murray ISBN 0-7195-5043-2 (1992-00-00)
    9. ? Grey-Wilson. C. & Matthews. V. Gardening on Walls Collins ISBN 0-00-219220-0 (1983-00-00)
    10. ? Craighead. J., Craighead. F. and Davis. R. A Field Guide to Rocky Mountain Wildflowers The Riverside Press ISBN 63-7093 (1963-00-00)
    11. ? Munz. A California Flora. University of California Press (1959-00-00)


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    Facts about "Ceanothus purpureus"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyRhamnaceae +
    Belongs to genusCeanothus +
    Functions asGround cover + and Nitrogen fixer +
    Has binomial nameCeanothus purpureus +
    Has common nameHollyleaf Ceanothus +
    Has drought toleranceIntolerant +
    Has fertility typeBees +
    Has flowers of typeHermaphrodite +
    Has hardiness zone8 +
    Has lifecycle typePerennial +
    Has material partUnknown part +
    Has material useDye + and Soap +
    Has mature height2 +
    Has search nameceanothus purpureus + and hollyleaf ceanothus +
    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 nameCeanothus purpureus +
    Has water requirementsmoderate +
    Inhabits ecosystem nicheSoil surface +
    Is deciduous or evergreenEvergreen +
    Is herbaceous or woodyWoody +
    Is taxonomy typeSpecies +
    PFAF cultivation notes migratedNo +
    PFAF edible use notes migratedYes +
    PFAF material use notes migratedNo +
    PFAF medicinal use notes migratedYes +
    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.Ceanothus purpureus + and Ceanothus purpureus +