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Lobelia valida 'Delft Blue' (Lobelia 'Delft Blue')

Beginner
skill rating
1 hour care
per year
0.2m
Max height
0.4m
Max spread
1-2 years
To maturity
Low
Toxicity

Plant details

Botanical name

Lobelia valida 'Delft Blue'

Other names

Lobelia 'Delft Blue'

Genus

Lobelia Lobelia

Variety or Cultivar

'Delft Blue' _ 'Delft Blue' is a compact, upright, branched, tender perennial, typically grown as an annual, with oblong, toothed, mid-green leaves and dense racemes of blue flowers from midsummer into autumn.


Lobelia valida 'Delft Blue' is: Deciduous

Habit

Upright, Compact, Branching

Toxicity

Severe discomfort may result if ingested

Flower

Blue in Summer; Blue in Autumn

Foliage

Green in Spring

How to care

Watch out for

Pests

Generally pest-free

Diseases

May get leaf blotch

General care

Propagation

Sow seed in container with heat as soon as ripe.

Propagation methods

Seed


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Where to grow

Lobelia valida 'Delft Blue' (Lobelia 'Delft Blue') will reach a height of 0.2m and a spread of 0.4m after 1-2 years.

Suggested uses

Cottage/Informal, Containers, Beds and borders, Hanging baskets

Cultivation

Grow in fertile, moist soil in sun or partial shade. Overwinter indoors and plant out after danger of frost has passed.

Soil type

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

Soil drainage

Moist but well-drained

Soil pH

Acid, Alkaline, 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.

Tender in frost (H3)

Companion plants

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

Botanical name

Lobelia valida 'Delft Blue'

Other names

Lobelia 'Delft Blue'

Genus

Lobelia Lobelia

Variety or Cultivar

'Delft Blue' _ 'Delft Blue' is a compact, upright, branched, tender perennial, typically grown as an annual, with oblong, toothed, mid-green leaves and dense racemes of blue flowers from midsummer into autumn.

Foliage

Deciduous

Habit

Upright, Compact, Branching

Toxicity

Severe discomfort may result if ingested


Colour

Flower

Blue in Summer; Blue in Autumn

Foliage

Green in Spring


How to care

Watch out for

Pests

Generally pest-free

Diseases

May get leaf blotch

General care

Propagation

Sow seed in container with heat as soon as ripe.

Propagation methods

Seed


Monthly care advice


Where to grow

Lobelia valida 'Delft Blue' (Lobelia 'Delft Blue') will reach a height of 0.2m and a spread of 0.4m after 1-2 years.

Suggested uses

Cottage/Informal, Containers, Beds and borders, Hanging baskets

Cultivation

Grow in fertile, moist soil in sun or partial shade. Overwinter indoors and plant out after danger of frost has passed.

Soil type

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

Soil drainage

Moist but well-drained

Soil pH

Acid, Alkaline, 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.

Tender in frost (H3)

USDA zones

Zone 10, Zone 9, Zone 8

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This plant likes... Garden match
Soil types: Chalky, Clay, Loamy, Sandy (will tolerate most soil types) Tell us...
Soil drainage: Moist but well-drained Tell us...
Soil pH: Acid, Alkaline, Neutral Tell us...
Light: Partial Shade, Full Sun Tell us...
Aspect: South, East, West Tell us...
Exposure: Exposed, Sheltered Tell us...
Hardiness: Tender in frost (H3) Tell us...

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