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Phlox paniculata 'Blue Boy' (Perennial phlox 'Blue Boy')
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1 hour care
per year
per year
0.9m
Max height
Max height
0.6m
Max spread
Max spread
2-5 years
To maturity
To maturity
Plant details
Botanical name
Phlox paniculata 'Blue Boy'
Other names
Perennial phlox 'Blue Boy', Garden phlox 'Blue Boy', Summer phlox 'Blue Boy'
Genus
Phlox Phlox
Variety or Cultivar
'Blue Boy' _ 'Blue Boy' is an erect, herbaceous perennial with ovate to broadly lance-shaped, mid- to dark green leaves and, from summer into early autumn, upright panicles of fragrant, mauve-blue flowers with white eyes .
Phlox paniculata 'Blue Boy' is: Deciduous
Fragrance
Flowers
Habit
Erect
Flower
Mauve in Summer; Mauve in Autumn
Foliage
Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn
How to care
Watch out for
Pests
Generally pest-free.
Downy mildew , Leaf spot , Powdery mildew Downy mildew , Leaf spot , Powdery mildew
General care
Pruning
Deadhead to prolong flowering. Cut plant down to the base in late autumn.
Propagation methods
Basal cuttings, Division, Root cuttings
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Where to grow
Phlox paniculata 'Blue Boy' (Perennial phlox 'Blue Boy') will reach a height of 0.9m and a spread of 0.6m after 2-5 years.
Suggested uses
Beds and borders, Cottage/Informal, Flower Arranging, Low Maintenance
Cultivation
Plant in fertile, moist soil in full sun or partial shade.
Soil type
Chalky, Clay, Loamy
Soil drainage
Moist but well-drained, Moisture-retentive
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.
Hardy (H4)
Companion plants
We do not currently have companion plants added for this plant.
Botanical name
Phlox paniculata 'Blue Boy'
Other names
Perennial phlox 'Blue Boy', Garden phlox 'Blue Boy', Summer phlox 'Blue Boy'
Genus
Phlox Phlox
Variety or Cultivar
'Blue Boy' _ 'Blue Boy' is an erect, herbaceous perennial with ovate to broadly lance-shaped, mid- to dark green leaves and, from summer into early autumn, upright panicles of fragrant, mauve-blue flowers with white eyes .
Foliage
Deciduous
Fragrance
Flowers
Habit
Erect
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Colour
Flower
Mauve in Summer; Mauve in Autumn
Foliage
Mid-green in Spring; Mid-green in Summer; Mid-green in Autumn
How to care
Watch out for
Pests
Generally pest-free.
Specific diseases
Downy mildew , Leaf spot , Powdery mildew
General care
Pruning
Deadhead to prolong flowering. Cut plant down to the base in late autumn.
Propagation methods
Basal cuttings, Division, Root cuttings
Monthly care advice
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Where to grow
Phlox paniculata 'Blue Boy' (Perennial phlox 'Blue Boy') will reach a height of 0.9m and a spread of 0.6m after 2-5 years.
Suggested uses
Beds and borders, Cottage/Informal, Flower Arranging, Low Maintenance
Cultivation
Plant in fertile, moist soil in full sun or partial shade.
Soil type
Chalky, Clay, Loamy
Soil drainage
Moist but well-drained, Moisture-retentive
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.
Hardy (H4)
USDA zones
Zone 9, Zone 8, Zone 7, Zone 6, Zone 5, Zone 4
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 | Tell us... |
| Soil drainage: | Moist but well-drained, Moisture-retentive | 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: | Hardy (H4) | Tell us... |
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