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Primula 'Crescendo Blue Shades' (Crescendo Series) (Polyanthus 'Crescendo Blue Shades')

Beginner
skill rating
1 hour care
per year
0.5m
Max height
0.5m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Primula 'Crescendo Blue Shades' (Crescendo Series)

Other names

Polyanthus 'Crescendo Blue Shades'

Genus

Primula Primula

Variety or Cultivar

'Crescendo Blue Shades' _ 'Crescendo Blue Shades' is a short-lived perennial typically grown as an annual, with oblong leaves, erect stems bearing an umbel of large blue flowers with yellow eyes in spring and summer.


Primula 'Crescendo Blue Shades' (Crescendo Series) is: Semi evergreen

Habit

Clump-forming

Awards

RHS AGM (Award of Garden Merit)

Flower

Blue, Yellow in Spring; Yellow, Blue in Winter

Foliage

Dark-green in Spring

How to care

Watch out for

Specific pests

Aphids , Glasshouse red spider mite , Leafhoppers , Slugs , Vine weevil Aphids , Glasshouse red spider mite , Leafhoppers , Slugs , Vine weevil

Grey mould , Primula leaf spot Grey mould , Primula leaf spot

General care

Pruning

Cut back after flowering.

Propagation methods

Seed


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Where to grow

Primula 'Crescendo Blue Shades' (Crescendo Series) (Polyanthus 'Crescendo Blue Shades') will reach a height of 0.5m and a spread of 0.5m after 2-5 years.

Suggested uses

Beds and borders, City, Containers, Cottage/Informal, Garden edging, Underplanting

Cultivation

Plant in fertile, humus-rich, moist but well-drained soil in full sun or partial shade. Water regularly in hot weather.

Soil type

Loamy, Sandy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

Companion plants

We do not currently have companion plants added for this plant.

Botanical name

Primula 'Crescendo Blue Shades' (Crescendo Series)

Other names

Polyanthus 'Crescendo Blue Shades'

Genus

Primula Primula

Variety or Cultivar

'Crescendo Blue Shades' _ 'Crescendo Blue Shades' is a short-lived perennial typically grown as an annual, with oblong leaves, erect stems bearing an umbel of large blue flowers with yellow eyes in spring and summer.

Foliage

Semi evergreen

Habit

Clump-forming

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Blue, Yellow in Spring; Yellow, Blue in Winter

Foliage

Dark-green in Spring


How to care

Watch out for

Specific pests

Aphids , Glasshouse red spider mite , Leafhoppers , Slugs , Vine weevil

Specific diseases

Grey mould , Primula leaf spot

General care

Pruning

Cut back after flowering.

Propagation methods

Seed


Monthly care advice


Where to grow

Primula 'Crescendo Blue Shades' (Crescendo Series) (Polyanthus 'Crescendo Blue Shades') will reach a height of 0.5m and a spread of 0.5m after 2-5 years.

Suggested uses

Beds and borders, City, Containers, Cottage/Informal, Garden edging, Underplanting

Cultivation

Plant in fertile, humus-rich, moist but well-drained soil in full sun or partial shade. Water regularly in hot weather.

Soil type

Loamy, Sandy

Soil drainage

Moist but well-drained, Moisture-retentive

Soil pH

Acid, Neutral

Light

Partial Shade, Full Sun

Aspect

South, East, West

Exposure

Exposed, Sheltered

UK hardiness Note: We are working to update our ratings. Thanks for your patience.

Hardy (H4)

USDA zones

Zone 7, Zone 6, Zone 5, Zone 4

Defra's Risk register #1

Plant name

Primula 'Crescendo Blue Shades' (Crescendo Series) (Polyanthus 'Crescendo Blue Shades')

Common pest name

Scientific pest name

Plantago asiatica mosaic virus

Type

Virus or Viroid

Current status in UK

Unknown

Likelihood to spread to UK (1 is very low - 5 is very high)

5

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Pest risk analysis suggested potential economic impacts would be small; and management by industry would be appropriate. Industry may wish to monitor for the presence of the pest and the Dutch industry certification scheme is of added benefit to the UK.

Defra's Risk register #2

Plant name

Primula 'Crescendo Blue Shades' (Crescendo Series) (Polyanthus 'Crescendo Blue Shades')

Common pest name

Necrotic spot

Scientific pest name

Impatiens necrotic spot virus

Type

Virus or Viroid

Current status in UK

Present (Widespread)

Likelihood to spread in UK (1 is very low - 5 is very high)

2

Impact (1 is very low - 5 is very high)

3

General biosecurity comments

Pest of mainly ornamentals and vegetables; present in the UK; and covered by the EU listing of Tomato Spotted Wilt Virus. To be kept under consideration in light of a review of the EU listing.

About this section

Our plants are under greater threat than ever before. There is increasing movement of plants and other material traded from an increasing variety of sources. This increases the chances of exotic pests arriving with imported goods and travellers, as well as by natural means. Shoot is working with Defra to help members to do their part in preventing the introduction and spread of invasive risks.

Traveling or importing plants? Please read "Don't risk it" advice here

Suspected outbreak? Click here for contact details to report to the relevant authority.

Date updated: 7th March 2019 For more information visit: https://planthealthportal.defra.gov.uk/

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This plant likes... Garden match
Soil types: Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained, Moisture-retentive Tell us...
Soil pH: Acid, Neutral Tell us...
Light: Partial Shade, Full Sun Tell us...
Aspect: South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

GARDENS WITH THIS PLANT

My Garden
My Garden
Susanna Greenwood
claire's garden
claire's garden
claire collins
My Garden
My Garden
Jeannie Hainsworth Lamb

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