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Forsythia x intermedia

a perennial woody deciduous member of the Forsythia genus in the family Oleaceae.

Niche
  • Unknown
    Unknown
    The ecosystem niches for this plant are unknown. Do you know them? Click the edit button to add them!
Functions
  • Hedge
    Hedge
    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
  • permanent shade
    Permanent 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,very alkaline
    Acid to Very alkaline
    The PH range (acidity or alkilinity) of the growth medium ideal for healthy nutrient absorbtion.
    Key
  • Sandy to Clay
    The soil texture this plant prefers for optimal growth.
    Key
Cold & Heat
  • 5
    Zone 5
    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

Uses

Edible uses

There are no edible uses listed for Forsythia x intermedia.

Material uses

Can be grown as a tall hedge, the var. 'Lynwood' is frequently used[1]. Var. 'Spectabilis' also makes a good hedge[2] as does 'Beatrix Farrand'[3].
There are no material uses listed for Forsythia x intermedia.

Medicinal uses(Warning!)

There are no medicinal uses listed for Forsythia x intermedia.

Ecology

Ecosystem niche/layer

Ecological Functions

Hedge

Forage

Nothing listed.

Shelter

Nothing listed.

Propagation

Seed - sow spring in a cold frame. The seed usually germinates within 2 months[K]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for at least their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts. This is a hybrid species and seed will not come true to type.

Cuttings of half-ripe wood 10 - 15cm taken at a node, July/August in a frame. Plant out in autumn or spring. A very high percentage, they root within 3 weeks[4].

Cuttings of mature wood in a sheltered outdoor bed. Good percentage[4].

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



Cultivation

An easily grown plant, it succeeds in a well drained ordinary garden soil but prefers a rich soil[5]. Succeeds in limy soils[6]. Prefers a sunny position but succeeds in semi shade[2]. Plants are tolerant of deep shade[7].

A very ornamental plant[5], there are several named varieties. Any pruning out of weak shoots, plus any trimming of hedges, is best done after the plant has flowered[3]. Birds may destroy the flower buds in cold areas[2].

This species is notably susceptible to honey fungus[2].

Crops

Problems, pests & diseases

Associations & Interactions

There are no interactions listed for Forsythia x intermedia. 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 Forsythia x intermedia.

Descendants

Cultivars

Varieties

None listed.

Subspecies

None listed.

Full Data

This table shows all the data stored for this plant.

Taxonomy
Binomial name
Forsythia x intermedia
Genus
Forsythia
Family
Oleaceae
Imported References
Edible uses
Medicinal uses
Material uses & Functions
[1][2][3]
Botanic
[6][2]
Propagation
Cultivation
Environment
Cultivation
Uses
Edible uses
None listed.
Material uses
None listed.
Medicinal uses
None listed.
Functions & Nature
Functions
Hedge
Provides forage for
Provides shelter for
Environment
Hardiness Zone
5
Heat Zone
?
Water
moderate
Sun
full sun
Shade
permanent shade
Soil PH
acid, neutral, alkaline, very alkaline
Soil Texture
sandy, loamy, clay
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
    deciduous
    Herbaceous or Woody
    woody
    Life Cycle
    perennial
    Growth Rate
    ?
    Mature Size
    2.5 x 2.5 meters
    Fertility
    ?
    Pollinators
    Insects
    Flower Colour
    ?
    Flower Type
    hermaphrodite











    References

    1. ? 1.01.1 Shepherd. F.W. Hedges and Screens. Royal Horticultural Society. ISBN 0900629649 (1974-00-00)
    2. ? 2.02.12.22.32.42.5 Huxley. A. The New RHS Dictionary of Gardening. 1992. MacMillan Press ISBN 0-333-47494-5 (1992-00-00)
    3. ? 3.03.13.2 Brickell. C. The RHS Gardener's Encyclopedia of Plants and Flowers Dorling Kindersley Publishers Ltd. ISBN 0-86318-386-7 (1990-00-00)
    4. ? 4.04.1 Sheat. W. G. Propagation of Trees, Shrubs and Conifers. MacMillan and Co (1948-00-00)
    5. ? 5.05.1 F. Chittendon. RHS Dictionary of Plants plus Supplement. 1956 Oxford University Press (1951-00-00)
    6. ? 6.06.1 Bean. W. Trees and Shrubs Hardy in Great Britain. Vol 1 - 4 and Supplement. Murray (1981-00-00)
    7. ? Grey-Wilson. C. & Matthews. V. Gardening on Walls Collins ISBN 0-00-219220-0 (1983-00-00)


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    Facts about "Forsythia x intermedia"RDF feed
    Article is incompleteYes +
    Article requires citationsNo +
    Article requires cleanupYes +
    Belongs to familyOleaceae +
    Belongs to genusForsythia +
    Functions asHedge +
    Has binomial nameForsythia x intermedia +
    Has drought toleranceIntolerant +
    Has fertility typeInsects +
    Has flowers of typeHermaphrodite +
    Has hardiness zone5 +
    Has lifecycle typePerennial +
    Has mature height2.5 +
    Has mature width2.5 +
    Has search nameforsythia x intermedia +
    Has shade tolerancePermanent shade +
    Has soil ph preferenceAcid +, Neutral +, Alkaline + and Very alkaline +
    Has soil texture preferenceSandy +, Loamy + and Clay +
    Has soil water retention preferenceWell drained +
    Has sun preferenceFull sun +
    Has taxonomic rankSpecies +
    Has taxonomy nameForsythia x intermedia +
    Has water requirementsmoderate +
    Is deciduous or evergreenDeciduous +
    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 +