Choisya ternata

Growing in Pots, Balconies & Indoors

Mexican Orange Blossom (Choisya ternata) is not a houseplant – the grower confirms – but it is an excellent container shrub for a patio or doorway, with glossy aromatic foliage and fragrant white flowers. As an evergreen shrub of 1.2-2.5 m it needs a cool winter and open air, so it belongs outdoors.

Quick Details

• Container Size: A large, sturdy pot; pot up as the shrub fills out
• Indoor Suitability: Not a houseplant; it needs cool winters and fresh air, not heated rooms
• Best Spot: Full sun to part shade
• Soil & Drainage: Fertile, slightly acidic, well-drained mix
• Watering in Pots: Average to plenty – keep evenly moist but never waterlogged

Indoors & On the Windowsill

• Why not indoors: The grower does not rate it as a houseplant – it needs a cool dormant season and good air movement, and it sulks in warm, still indoor air.
• Overwintering: Hardy in mild-temperate climates, the pot stays outside year-round; in hard frost, shelter it from freezing wind that can scorch the evergreen leaves.

On a Balcony or Patio

• Light & wind: It flowers best in sun but takes part shade; on an exposed spot shelter it from cold wind, and keep the pot evenly moist as it dries in summer heat.
• Practicalities: The aromatic foliage is pleasant to brush past by a door or seating area; ensure the pot drains freely.

Choosing the Pot, Soil & Long-Term Care

• Pot & drainage: Use a large, sturdy pot with strong drainage holes; skip a standing-water saucer to avoid root rot. Terracotta breathes and dries faster, while glazed or plastic pots hold moisture longer, useful for an evergreen shrub in a pot.
• Potting mix: A rich, well-aerated organic mix – peat or coir with plenty of compost or organic matter, lightened with perlite or vermiculite for drainage.
• Feeding: Potted plants exhaust their soil quickly as nutrients leach out – feed lightly but regularly through the growing season.
• Repotting: Refresh the mix or pot up about every two years; for clumping perennials, lift and divide, trimming the roots and old top growth as you go.

Bloom & Flower Guide

Quick Details

• Bloom Season: Spring and summer, often with a lighter second flush in autumn
• Flower Appearance: Flat, white, five-petalled star flowers with a sweet orange-blossom scent
• Edibility: Ornamental only — grown for scent and evergreen form, not eaten

Detailed Blooming Overview

Mexican orange is grown as much for scent as for looks. In spring and summer it covers itself in flat, white, five-petalled star flowers that carry a sweet orange-blossom fragrance — the reason for its common name. In milder areas it often gives a lighter second flush in autumn, and the aromatic glossy leaves set off the bloom.

Flower Characteristics

• Flat, white, five-petalled star flowers.
• Sweet orange-blossom fragrance.
• Aromatic, glossy foliage as a backdrop.

Bloom Care & Thinning

• Managing the bloom: A light prune right after the main flush keeps it neat and can prompt the second showing.