Iochroma grandiflorum (Iochroma grandiflorum)

Botanical name

Iochroma grandiflorum

Other names

Iochroma grandiflorum

Genus

Iochroma Iochroma

Species

I. grandiflorum - I. grandiflorum is a tender evergreen shrub. It has soft ovate leaves and from late summer to early autumn, bears large clusters of pendant, purple-blue, trumpet-shaped flowers.

Foliage

Evergreen

Habit

Spreading

Colour

Flower

Blue, Purple in Summer; Purple, Blue in Autumn

Foliage

Green in All seasons

How to care

Watch out for

Specific pests

Glasshouse red spider mite , Glasshouse whitefly

General care

Pruning

Cut back flowered stems by half in late winter.

Propagation methods

Semi-ripe cuttings

Monthly care advice

Where to grow

Iochroma grandiflorum (Iochroma grandiflorum) will reach a height of 2m and a spread of 1.5m after 5-10 years.

Suggested uses

Conservatory, Containers, Greenhouse, Indoor, Mediterranean, Sub-Tropical

Cultivation

Grow indoors in fertile, well-drained soil in a sunny or lightly shaded position. Water freely during active growth. Pots may be put outside during the summer and brought indoors before the first frosts.

Soil type

Chalky, Loamy, Sandy

Soil drainage

Moist but well-drained, Well-drained

Soil pH

Acid, Alkaline, Neutral

Light

Partial Shade, Full Sun

Aspect

South, West

Exposure

Sheltered

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

Indoor heated (H1)

USDA zones

Zone 12, Zone 11, Zone 10

Defra's Risk register #1

Plant name

Iochroma grandiflorum (Iochroma grandiflorum)

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 grandiflorum (Iochroma grandiflorum)

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.

Defra's Risk register #3

Plant name

Iochroma grandiflorum (Iochroma grandiflorum)

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.

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