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Jamesbrittenia bergae (Crimson phlox)

Beginner
skill rating
1 hour care
per year
0.5m
Max height
0.5m
Max spread
5-10 years
To maturity

Plant details

Botanical name

Jamesbrittenia bergae

Other names

Crimson phlox

Genus

Jamesbrittenia Jamesbrittenia

Species

J. bergae - J. bergae is a compact, borderline hardy, mound-forming, hairy, evergreen perennial or subshrub with pinnate, grey-green leaves and, throughout the year, bright crimson flowers with yellow throats.


Jamesbrittenia bergae is: Evergreen

Habit

Compact, Cushion or Mound Forming

Flower

Scarlet in All seasons

Foliage

Grey-green, Silvery-grey in All seasons

How to care

Watch out for

Specific pests

Aphids , Glasshouse red spider mite Aphids , Glasshouse red spider mite

General care

Pruning

Cut back in late winter or early spring as new shoots and buds form.

Propagation

Often short-lived so consider propagating regularly. Does not set viable seed unless planted with another J. bergae. Take softwood, semi-hardwood, or heel cuttings in spring or summer. Roots tend to form in 3-4 weeks.

Propagation methods

Semi-hardwood cuttings, Softwood cuttings


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Where to grow

Jamesbrittenia bergae (Crimson phlox) will reach a height of 0.5m and a spread of 0.5m after 5-10 years.

Suggested uses

Mediterranean, Gravel, Containers, Conservatory, Beds and borders, Rock

Cultivation

Grow in moist but well-drained, preferably clay or loam in sun or partial shade. Avoid excessive winter wet. Under glass, grow in loam-based compost with grit in full light. In growth, water freely & feed monthly.

Soil type

Chalky, Clay, Loamy

Soil drainage

Moist but 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.

Tender in frost (H3)

Companion plants

Botanical name

Jamesbrittenia bergae

Other names

Crimson phlox

Genus

Jamesbrittenia Jamesbrittenia

Species

J. bergae - J. bergae is a compact, borderline hardy, mound-forming, hairy, evergreen perennial or subshrub with pinnate, grey-green leaves and, throughout the year, bright crimson flowers with yellow throats.

Foliage

Evergreen

Habit

Compact, Cushion or Mound Forming


Colour

Flower

Scarlet in All seasons

Foliage

Grey-green, Silvery-grey in All seasons


How to care

Watch out for

Specific pests

Aphids , Glasshouse red spider mite

General care

Pruning

Cut back in late winter or early spring as new shoots and buds form.

Propagation

Often short-lived so consider propagating regularly. Does not set viable seed unless planted with another J. bergae. Take softwood, semi-hardwood, or heel cuttings in spring or summer. Roots tend to form in 3-4 weeks.

Propagation methods

Semi-hardwood cuttings, Softwood cuttings


Monthly care advice


Where to grow

Jamesbrittenia bergae (Crimson phlox) will reach a height of 0.5m and a spread of 0.5m after 5-10 years.

Suggested uses

Mediterranean, Gravel, Containers, Conservatory, Beds and borders, Rock

Cultivation

Grow in moist but well-drained, preferably clay or loam in sun or partial shade. Avoid excessive winter wet. Under glass, grow in loam-based compost with grit in full light. In growth, water freely & feed monthly.

Soil type

Chalky, Clay, Loamy

Soil drainage

Moist but 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.

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 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, West Tell us...
Exposure: Sheltered Tell us...
Hardiness: Tender in frost (H3) Tell us...

GARDENS WITH THIS PLANT

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My Garden
Jan Moreau

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