North America Non-native Plant

Bitter Orange

Botanical name: Citrus limetta

USDA symbol: CILI2

Life cycle: perennial

Habit: tree

Native status: Non-native, reproduces and persists in the wild in Puerto Rico  

Bitter Orange (Citrus limetta): A Sweet Addition to Your Subtropical Garden If you’re looking to add a touch of the tropics to your garden, you might have stumbled across the bitter orange, scientifically known as Citrus limetta. This charming citrus tree has been making its way into American gardens, particularly ...

Bitter Orange (Citrus limetta): A Sweet Addition to Your Subtropical Garden

If you’re looking to add a touch of the tropics to your garden, you might have stumbled across the bitter orange, scientifically known as Citrus limetta. This charming citrus tree has been making its way into American gardens, particularly in warmer regions, and for good reason. Let’s dive into what makes this tree special and whether it deserves a spot in your landscape.

What Exactly Is Bitter Orange?

Don’t let the name fool you – bitter orange (Citrus limetta) is actually known for producing sweet, mild-flavored fruit! This perennial tree typically grows as a single-stemmed specimen, reaching heights of 13 to 16 feet or more under ideal conditions. Sometimes, depending on environmental factors, it may develop a shorter, multi-stemmed growth habit.

Where Does Bitter Orange Come From?

Originally hailing from northern India and surrounding regions, Citrus limetta has found its way to various warm climates around the world. In the United States, it has established itself in Puerto Rico, where it now grows and reproduces naturally without human intervention.

The Beauty Factor

What makes bitter orange particularly appealing to gardeners is its year-round beauty. The tree boasts glossy, dark green leaves that provide an elegant backdrop to its fragrant white flowers. When fruit season arrives, you’ll be treated to pale yellow to yellow-green citrus fruits that add both visual interest and a delightful fragrance to your outdoor space.

Garden Design and Landscape Role

Bitter orange works wonderfully as:

  • A specimen tree for creating focal points
  • Part of a Mediterranean or subtropical garden theme
  • Container growing for patios and decks
  • An addition to edible landscapes

This tree is particularly well-suited for gardens in warmer climates where you want to create that resort-like, tropical feel.

Pollinator Paradise

Here’s where bitter orange really shines for eco-conscious gardeners – those fragrant white blooms are absolute magnets for bees and other beneficial pollinators. During flowering season, your tree will be buzzing with activity, supporting local pollinator populations.

Growing Conditions and Care

Bitter orange thrives in USDA hardiness zones 9-11, making it suitable for the warmest parts of the United States. Here’s what this tree needs to flourish:

  • Sunlight: Full sun exposure for best growth and fruit production
  • Soil: Well-drained soil is essential – soggy roots spell trouble
  • Water: Regular watering, but allow soil to dry between waterings
  • Temperature: Warm temperatures year-round; protect from frost

Planting and Care Tips

Getting your bitter orange tree off to a great start is easier than you might think:

  • Plant in spring after the last frost date
  • Choose a location with morning sun and some afternoon protection in extremely hot climates
  • Water deeply but infrequently to encourage deep root growth
  • Prune lightly to maintain shape and remove any dead or crossing branches
  • In colder zones, consider container growing so you can move the tree indoors during winter

Should You Plant Bitter Orange?

Since bitter orange is not native to most of the United States, you might wonder if it’s the right choice for your garden. While it’s not considered invasive, supporting native plants is always a great option for local ecosystems. If you’re interested in native alternatives, consider looking into indigenous citrus relatives or other native flowering trees that support local wildlife.

That said, if you’re in zones 9-11 and looking for a beautiful, fragrant tree that produces edible fruit and supports pollinators, bitter orange can be a lovely addition to your landscape. Just be sure to source your plant from a reputable nursery and enjoy the sweet rewards of your subtropical garden!

Whether you choose bitter orange or explore native alternatives, the most important thing is creating a garden space that brings you joy while supporting the local environment.

Bitter Orange

Classification

Group

Dicot

Kingdom

Plantae - Plants

Subkingdom

Tracheobionta - Vascular plants

Superdivision

Spermatophyta - Seed plants

Division

Magnoliophyta - Flowering plants

Subdivision
Class

Magnoliopsida - Dicotyledons

Subclass

Rosidae

Order

Sapindales

Family

Rutaceae Juss. - Rue family

Genus

Citrus L. - citrus

Species

Citrus limetta Risso - bitter orange

Plant data source: USDA, NRCS 2025. The PLANTS Database. https://plants.usda.gov,. 2/25/2025. National Plant Data Team, Greensboro, NC USA