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Crocus biflorus 'Blue Pearl' (Crocus 'Blue Pearl')

Beginner
skill rating
1 hour care
per year
0.1m
Max height
0.1m
Max spread
2-5 years
To maturity

Plant details

Botanical name

Crocus biflorus 'Blue Pearl'

Other names

Crocus 'Blue Pearl', Crocus chrysanthus 'Blue Pearl'

Genus

Crocus Crocus

Variety or Cultivar

'Blue Pearl' _ 'Blue Pearl' is a compact, tufted, cormous perennial with linear, erect, dark green leaves and, in early spring, goblet-shaped, pale lavender-blue flowers with yellow throats.


Crocus biflorus 'Blue Pearl' is: Deciduous

Habit

Erect, Clump-forming

Awards

RHS AGM (Award of Garden Merit)

Flower

Pale-blue, Lavender in Spring

Foliage

Dark-green in Spring

How to care

Watch out for

Specific pests

Mice , Squirrels , Voles Mice , Squirrels , Voles

Grey mould Grey mould

General care

Pruning

No pruning needed. Cut leaves back only after they have completely died back.

Propagation methods

Seed


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Where to grow

Crocus biflorus 'Blue Pearl' (Crocus 'Blue Pearl') will reach a height of 0.1m and a spread of 0.1m after 2-5 years.

Suggested uses

Naturalised in turf, Gravel, Containers, City, Beds and borders, Rock

Cultivation

Grow in poor to moderately fertile, gritty soil in full sun.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

North, South, East, West

Exposure

Exposed, Sheltered

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

Hardy (H4)

Companion plants

Botanical name

Crocus biflorus 'Blue Pearl'

Other names

Crocus 'Blue Pearl', Crocus chrysanthus 'Blue Pearl'

Genus

Crocus Crocus

Variety or Cultivar

'Blue Pearl' _ 'Blue Pearl' is a compact, tufted, cormous perennial with linear, erect, dark green leaves and, in early spring, goblet-shaped, pale lavender-blue flowers with yellow throats.

Foliage

Deciduous

Habit

Erect, Clump-forming

Awards

RHS AGM (Award of Garden Merit)


Colour

Flower

Pale-blue, Lavender in Spring

Foliage

Dark-green in Spring


How to care

Watch out for

Specific pests

Mice , Squirrels , Voles

Specific diseases

Grey mould

General care

Pruning

No pruning needed. Cut leaves back only after they have completely died back.

Propagation methods

Seed


Monthly care advice


Where to grow

Crocus biflorus 'Blue Pearl' (Crocus 'Blue Pearl') will reach a height of 0.1m and a spread of 0.1m after 2-5 years.

Suggested uses

Naturalised in turf, Gravel, Containers, City, Beds and borders, Rock

Cultivation

Grow in poor to moderately fertile, gritty soil in full sun.

Soil type

Chalky, Clay, Loamy, Sandy (will tolerate most soil types)

Soil drainage

Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

North, 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 8, Zone 7, Zone 6, Zone 5, Zone 4

Defra's Risk register #1

Plant name

Crocus biflorus 'Blue Pearl' (Crocus 'Blue Pearl')

Common pest name

common blossom thrips; cotton bud thrips; tomato thrips

Scientific pest name

Frankliniella schultzei

Type

Insect

Current status in UK

Absent

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

2

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

3

General biosecurity comments

Polyphagous glasshouse pest; present in many countries; single finding in UK.

Defra's Risk register #2

Plant name

Crocus biflorus 'Blue Pearl' (Crocus 'Blue Pearl')

Common pest name

Eelworm; potato; Eelworm; potato tuber; Iris nematode; Nematode; potato rot; Potato root nematode; Potato tuber nematode

Scientific pest name

Ditylenchus destructor

Type

Nematode

Current status in UK

Present (Unknown Distribution)

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

1

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

3

General biosecurity comments

EU regulated polyphagous nematode pest present in parts of the UK. Marketing schemes and good practice help to reduce impacts

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: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: North, South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Hardy (H4) Tell us...

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