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Iochroma cyaneum (Violet churur)

Advanced
skill rating
2 hours care
per year
4m
Max height
4m
Max spread
5-10 years
To maturity

Plant details

Botanical name

Iochroma cyaneum

Other names

Violet churur, Violet bush, Iochroma tubulosum

Genus

Iochroma Iochroma

Species

I. cyaneum - I. cyaneum is a tender, upright to spreading, semi-evergreen shrub with narrowly ovate to elliptic, sofly hairy, grey-green leaves and umbel-like clusters of tubular, purple-blue flowers in summer. Fruit is rarely produced in cultivation.


Iochroma cyaneum is: Semi evergreen

Habit

Spreading, Upright

Flower

Purple in Summer

Foliage

Grey-green in All seasons

How to care

Watch out for

Specific pests

Red spider mite (box and other) , Whitefly Red spider mite (box and other) , Whitefly

General care

Pruning

Pinch back when young to create a bushier habit. Pruning group 9. May need restrictive pruning under glass.

Propagation methods

Seed, Semi-ripe cuttings, Softwood cuttings


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Where to grow

Iochroma cyaneum (Violet churur) will reach a height of 4m and a spread of 4m after 5-10 years.

Suggested uses

Beds and borders, Conservatory, Containers, Greenhouse, Indoor, Mediterranean, Sub-Tropical, Wallside and trellises

Cultivation

Under glass, grow in loam-based compost in bright or moderately filtered light. Water moderately & feed monthly in growth. In frost-free areas, grow outdoors in fertile, moist but well-drained soil in full sun or partial shade with shelter from cold, drying winds.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Sheltered

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

Indoor unheated (H2)

Companion plants

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

Botanical name

Iochroma cyaneum

Other names

Violet churur, Violet bush, Iochroma tubulosum

Genus

Iochroma Iochroma

Species

I. cyaneum - I. cyaneum is a tender, upright to spreading, semi-evergreen shrub with narrowly ovate to elliptic, sofly hairy, grey-green leaves and umbel-like clusters of tubular, purple-blue flowers in summer. Fruit is rarely produced in cultivation.

Native to

Columbia, Ecuador, Peru

Foliage

Semi evergreen

Habit

Spreading, Upright


Colour

Flower

Purple in Summer

Foliage

Grey-green in All seasons


How to care

Watch out for

Specific pests

Red spider mite (box and other) , Whitefly

General care

Pruning

Pinch back when young to create a bushier habit. Pruning group 9. May need restrictive pruning under glass.

Propagation methods

Seed, Semi-ripe cuttings, Softwood cuttings


Monthly care advice


Where to grow

Iochroma cyaneum (Violet churur) will reach a height of 4m and a spread of 4m after 5-10 years.

Suggested uses

Beds and borders, Conservatory, Containers, Greenhouse, Indoor, Mediterranean, Sub-Tropical, Wallside and trellises

Cultivation

Under glass, grow in loam-based compost in bright or moderately filtered light. Water moderately & feed monthly in growth. In frost-free areas, grow outdoors in fertile, moist but well-drained soil in full sun or partial shade with shelter from cold, drying winds.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Full Sun

Aspect

South, West

Exposure

Sheltered

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

Indoor unheated (H2)

USDA zones

Zone 11, Zone 10, Zone 9

Defra's Risk register #1

Plant name

Iochroma cyaneum (Violet churur)

Common pest name

; Black wood of grapevine; Female sterility of tobacco; Fruit woodiness of tomato; Maize Redness; Mal azul of tomato; Metabolbur; Metastolbur; Parastolbur; Purple top of potato; Stolbur of potato; Stolbur of tobacco; Stolbur of tomato

Scientific pest name

Candidatus Phytoplasma solani

Type

Phytoplasma

Current status in UK

Absent

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

3

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

4

General biosecurity comments

Phytoplasma which potentially affects a wide host range; determined by the feeding behaviour of vectors. First UK outbreak in 2014; on strawberry; a host not specifically regulated in EU legislation. This legislation should be reviewed to take account of this and other developments.

Defra's Risk register #2

Plant name

Iochroma cyaneum (Violet churur)

Common pest name

Scientific pest name

Xiphinema bakeri

Type

Nematode

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)

4

General biosecurity comments

Nematode pest; could potentially affect trees and other species if introduced but many pathways regulated. No evidence of interceptions or findings to date.

Defra's Risk register #3

Plant name

Iochroma cyaneum (Violet churur)

Common pest name

Lance nematode; Nematode; Lance

Scientific pest name

Hoplolaimus spp.

Type

Nematode

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)

4

General biosecurity comments

Nematode species potentially affecting a wide variety of crops; prohibition of soil likely to mitigate risk substantially; keep under review in light of interceptions or findings should they occur in the EU.

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, Loamy, Sandy Tell us...
Soil drainage: Moist but well-drained, Well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Full Sun Tell us...
Aspect: South, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Indoor unheated (H2) Tell us...

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