Overview

Justicia lutea is a bushy conservatory greenhouse in the genus Justicia, part of the Acanthaceae family, with evergreen foliage. Justicia lutea grows best in full sun and partial shade, and tolerates loam soils and acid and neutral pH. Its UK hardiness is rated H1a. Suggested uses include patio and container plants.

About

Justicia lutea is a bushy evergreen cultivar of the Justicia genus, known for its simple foliage and tubular flowers arranged in spikes or clusters. Suited to conservatories, greenhouses, and as a houseplant, it thrives in fertile, well-drained loam soils with moist but well-drained conditions. This cultivar prefers full sun to partial shade and benefits from a sheltered position facing east, south, or west. It is hardy to UK zone H1a and is typically grown in patio containers, with interest during the spring and summer seasons.

Growing conditions

Best soil and position for Justicia

Sunlight

Full sun, Partial shade

Soil type

Loam

Soil pH

Acid, Neutral

Soil moisture

Moist but well-drained, Well-drained

Aspect

East-facing, South-facing, West-facing

Exposure

Sheltered

UK hardiness

H1a

Plant details

Justicia lutea size, habit and characteristics

Plant type

Conservatory Greenhouse, Houseplants

Habit

Bushy

Foliage

Evergreen

Suggested uses

Patio and container plants

Care notes

Pruning and caring for Justicia lutea

Propagation

Seed, softwood or semi-hardwood cuttings

Pest resistance

Glasshouse red spider mite, Glasshouse whitefly

Disease resistance

Generally disease-free

Frequently asked questions

More in the Justicia genus

• 
  Justicia aconitiflora
• 
  Justicia adhatodaadhatoda
• 
  Justicia aurea
• 
  Justicia californicachuparosa honeysuckle
• 
  Justicia hyssopifolia
• 
  Justicia plumbaginifolia
• 
  Justicia procumbens
• 
  Justicia ventricosa