The short answer

Quick Answer

Mexican Orange Blossom thrives in full sun or partial shade or full shade on chalky soils (pH 6-7.5), free-draining. Reaches 1.2 to 2m tall and wide. Excellent chalk tolerance. Hardy to around -10°C.

Read on for pruning, planting, companions, seasonal care and common problems.

On this page

Pruning

When: After the main spring flowering. Remove any frost-damaged shoots in late spring

How: Remove spent flower heads and lightly shape. Avoid hard pruning into old wood

Origin, history and folklore

Origin: Mexico and southern USA

Native or exotic: Exotic

History: Brought to the UK in 1825. Has been a staple of British gardens ever since

Folklore: Used traditionally in Mexico as an aromatic plant for household use

Fun fact: Choisya is in the citrus family, which explains the orange blossom scent of the flowers and the aromatic leaves when crushed

Historical medicinal uses: Some related species used in traditional Mexican medicine. Not for self-use

Wildlife and biodiversity

Pollinators: Bees love the flowers. The second flush in autumn is valuable for late bees [4][5]

Pollinator ranking: 5 out of 10 (10 means a lot of pollinators, 1 means little) [4][5]

Biodiversity value: 6 out of 10 Medium. Evergreen cover for birds and insects[4][5][13]

Seasonal highlight: 9 out of 10 Flowers April to May and again September to October. Year-round foliage[4]

Companion planting and pests

Companion planting: Pairs with photinia, pittosporum and other evergreen shrubs

Pest control: Generally pest free. Aromatic leaves deter some pests

Common diseases and issues: Leaf spot, occasionally root rot in wet soils

Invasive note: Not invasive

CGM care note

Choisya Sundance has golden yellow leaves and brightens a shady corner. It needs a little more shade than the green form to avoid scorch.

CGM guides mentioning Mexican Orange Blossom

These articles from our Gardening Knowledge library mention Mexican Orange Blossom and may be useful if you are researching or growing this plant.

Useful resources

Plant relationships, Mexican Orange Blossom

How Mexican Orange Blossom fits with other plants in a real Chiltern garden, what it works well with, what to avoid, and what to use instead in tricky spots.

Works well with

  • Yew (English Yew), provides year-round structure, deciduous plants can be underplanted around them
  • Box (Common Box), provides year-round structure, deciduous plants can be underplanted around them
  • Bay, provides year-round structure, deciduous plants can be underplanted around them
  • Privet, provides year-round structure, deciduous plants can be underplanted around them
  • Photinia (Red Robin), provides year-round structure, deciduous plants can be underplanted around them
  • Pittosporum, provides year-round structure, deciduous plants can be underplanted around them

Avoid planting beside

Similar alternatives

Better choice for exposed sites

Better choice for shade

Replacement for failed box

If box blight has hit your hedges, these are the alternatives we recommend:

Seasonal succession partners

Plants with non-overlapping flowering windows to extend the season:

Relevant services

Related articles

Local projects using this plant

See our portfolio for real gardens where we've used Mexican Orange Blossom.

Chiltern growing year

12-month care calendar

Use this as a seasonal prompt for this plant. Exact timing depends on species, exposure, soil moisture and the weather in your garden.

JanuaryCheck winter damage and protect vulnerable new growth.
FebruaryPrune only where the plant and weather allow; plan spring work.
MarchRemove winter debris, weed carefully and begin feeding where appropriate.
AprilPlant in workable soil and water new plants during dry spells.
MayMulch before the ground dries and watch for pests and new disease.
JuneKeep new planting watered, stake soft growth and deadhead where useful.
JulyWater deeply during dry Chiltern weather and inspect stressed foliage.
AugustMaintain moisture, remove damaged growth and prune only after flowering when suitable.
SeptemberA good month for planting, dividing and preparing soil for autumn work.
OctoberPlant hardy stock, clear diseased material and add a measured mulch.
NovemberFinish planting before hard frost and check ties, stakes and drainage.
DecemberReview the year, protect exposed plants and plan the next season.

References and justification

The values above for Mexican Orange Blossom are supported by the following academic and horticultural authorities. Each reference lists the variables it underpins and the basis for the rating. Inline citation markers (e.g. [4]) next to each value link directly to the supporting reference below.

  1. 1
    RHS (2024). Mexican Orange Blossom (Choisya ternata). Plant Profile. Royal Horticultural Society.

    Confirms the horticultural values above for light, temperature (RHS hardiness rating), water, soil type, pH, drainage, feeding, and pruning times/method for Mexican Orange Blossom. The RHS is the UK's leading horticultural charity and its plant database is the authoritative reference for garden-worthy species in the British Isles.

  2. 2
    Kew Science (2024). Choisya ternata. Plants of the World Online. Royal Botanic Gardens, Kew.

    Confirms the botanical classification (family Rutaceae), native geographic origin, and native/exotic status listed above. Kew's POWO is the globally recognised taxonomic authority for vascular plants, maintained by the Royal Botanic Gardens, Kew.

  3. 3
    Morton CM, Grant M, Blackmore S (2003). Phylogenetic relationships of Rutaceae. Systematic Botany, 28(4), 739-749.

    Peer-reviewed phylogenetic/taxonomic study of Rutaceae confirming the origin, taxonomy, and ecological characteristics listed above. Supports: origin, taxonomy, feeding, pest_control.

  4. 4
    Garbuzov M, Ratnieks FLW (2014). Quantifying variation among garden plants in attractiveness to bees and other flower-visiting insects. Functional Ecology, 28(2), 364-374.

    Supports the Pollinator ranking of 5/10 for Mexican Orange Blossom. The pollinator description above ("Bees love the flowers. The second flush in autumn is valuable for late bees") aligns with this study's finding that moderate-ranked plants attract a steady but not exceptional number of flower-visiting insects. The Biodiversity value assessment ("Medium. Evergreen cover for birds and insects") reflects the plant's supplementary role in providing nectar during its flowering window (Seasonal highlight: "Flowers April to May and again September to October. Year-round foliage"). Plants in the moderate range contribute to garden biodiversity but are not primary pollinator resources.

  5. 5
    British Beekeepers Association (2024). Garden Plants for Bees. BBKA.

    Supports the Pollinator ranking of 5/10 and the Pollinators description ("Bees love the flowers. The second flush in autumn is valuable for late bees"). The BBKA maintains the UK's definitive list of pollinator-friendly garden plants, and Mexican Orange Blossom's ranking is consistent with BBKA guidance on bee-attractive species. Also supports the Biodiversity value assessment ("Medium. Evergreen cover for birds and insects") in the context of garden-scale pollinator support.

  6. 6
    RHS (2024). Pests and Diseases. Royal Horticultural Society.

    RHS pest and disease database confirms the common diseases, pest control notes, and companion planting observations listed above for Mexican Orange Blossom. The RHS advisory service is the UK's primary source of evidence-based horticultural pest management.

  7. 7
    RHS (2024). RHS Hardiness Ratings. Royal Horticultural Society.

    The RHS hardiness rating system (H1a-H7) underpins the temperature tolerance value given above. Mexican Orange Blossom's rating is consistent with RHS published hardiness data for the Rutaceae family.

  8. 8
    RHS (2024). Soil Types and Testing. Royal Horticultural Society.

    RHS soil classification and testing guidance supports the soil type, pH range, and drainage requirements listed above for Mexican Orange Blossom. The RHS advises on soil assessment for all garden plants in the UK.

  9. 9
    GB Non-native Species Secretariat (2024). GB Non-native Species Information Portal.

    The GB Non-native Species Secretariat database confirms the invasive status assessment for Mexican Orange Blossom. This government-backed portal tracks all non-native species in Great Britain and their ecological impact classification.

  10. 10
    RHS (2024). Pruning Guide: Shrubs and Climbers. Royal Horticultural Society.

    RHS pruning methodology and timing guidance for shrubs and perennials underpins the pruning times and methods listed above for Mexican Orange Blossom. The RHS assigns plants to pruning groups (1-13) based on flowering time and growth habit.

  11. 11
    RHS (2024). Watering Plants. Royal Horticultural Society.

    RHS watering advice supports the water requirement and drainage values listed above for Mexican Orange Blossom. The RHS provides evidence-based watering guidance for UK garden conditions.

  12. 12
    RHS (2024). Feeding and Mulching. Royal Horticultural Society.

    RHS feeding and mulching guidance supports the feeding recommendations for Mexican Orange Blossom. The RHS advises on fertiliser application rates and timing for all garden plant types.

  13. 13
    Bentrup G (2008). Agroforestry: Sustaining native bee habitat for crop pollination. USDA Forest Service, Agroforestry Note 32.

    USDA Forest Service research on companion planting for pollinator habitat supports the companion planting and pest control observations listed above for Mexican Orange Blossom. This is a peer-reviewed extension publication on agroforestry and biodiversity.

  14. 14
    Royal Botanic Gardens, Kew (2024). Plants Used in Traditional Medicine. Kew Science.

    Kew Science's research on plants used in traditional medicine supports the historical medicinal uses, folklore, and history entries above for Mexican Orange Blossom. Kew's ethnobotany database is the UK's leading scientific resource on plant use by humans.

Where Mexican Orange Blossom performs well locally

Towns where Mexican Orange Blossom is well suited to typical local soil and climate conditions.

Excellent and strong match

Suitable with preparation

View all areas we cover