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Indigofera howellii (Indigo bush)
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1 hour care
per year
per year
2m
Max height
Max height
2.5m
Max spread
Max spread
10-20 years
To maturity
To maturity
Plant details
Botanical name
Indigofera howellii
Other names
Indigofera potaninii, Indigofera subverticillata, Indigo bush
Genus
Indigofera Indigofera
Species
I. howellii - I. howellii is a spreading, deciduous shrub with pinnate leaves divided into oval to elliptic, grey-green leaflets and slender, dense, upright racemes of deep pink flowers from late spring into autumn.
Indigofera howellii is: Deciduous
Habit
Spreading
Flower
Dark-pink in Spring; Dark-pink in Summer; Dark-pink in Autumn
Foliage
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
How to care
Watch out for
Pests
Generally pest-free
Diseases
Generally disease-free
General care
Pruning
Pruning group1, group 13 if wall-trained. In areas with hard, cold winters, pruning group 6 or 7.
Propagation methods
Semi-hardwood cuttings, Seed, Softwood cuttings
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Where to grow
Indigofera howellii (Indigo bush) will reach a height of 2m and a spread of 2.5m after 10-20 years.
Suggested uses
Banks and Slopes, Beds and borders, City, Coastal, Cottage/Informal, Low Maintenance, Wallside and trellises
Cultivation
Grows well in most fertile, moist but well-drained soil in sun. Mulch heavily in winter in cold areas. Can be treated as an herbaceous perennial in cold winter climates.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East
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
Indigofera howellii
Other names
Indigofera potaninii, Indigofera subverticillata, Indigo bush
Genus
Indigofera Indigofera
Species
I. howellii - I. howellii is a spreading, deciduous shrub with pinnate leaves divided into oval to elliptic, grey-green leaflets and slender, dense, upright racemes of deep pink flowers from late spring into autumn.
Foliage
Deciduous
Habit
Spreading
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Colour
Flower
Dark-pink in Spring; Dark-pink in Summer; Dark-pink in Autumn
Foliage
Grey-green in Spring; Grey-green in Summer; Grey-green in Autumn
How to care
Watch out for
Pests
Generally pest-free
Diseases
Generally disease-free
General care
Pruning
Pruning group1, group 13 if wall-trained. In areas with hard, cold winters, pruning group 6 or 7.
Propagation methods
Semi-hardwood cuttings, Seed, Softwood cuttings
Monthly care advice
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Where to grow
Indigofera howellii (Indigo bush) will reach a height of 2m and a spread of 2.5m after 10-20 years.
Suggested uses
Banks and Slopes, Beds and borders, City, Coastal, Cottage/Informal, Low Maintenance, Wallside and trellises
Cultivation
Grows well in most fertile, moist but well-drained soil in sun. Mulch heavily in winter in cold areas. Can be treated as an herbaceous perennial in cold winter climates.
Soil type
Chalky, Clay, Loamy, Sandy (will tolerate most soil types)
Soil drainage
Moist but well-drained, Well-drained
Soil pH
Acid, Alkaline, Neutral
Light
Full Sun
Aspect
South, East
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
In order to add a note on this plant, please add this plant to your plant lists.
| This plant likes... | Garden match | |
| Soil types: | Chalky, Clay, Loamy, Sandy (will tolerate most soil types) | 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, East | Tell us... |
| Exposure: | Exposed, Sheltered | Tell us... |
| Hardiness: | Hardy (H4) | Tell us... |
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