Grapefruit

Citrus paradisi

Fruit Tree

About Grapefruit

Grapefruit is a subtropical citrus tree that produces large, tangy-sweet fruit, believed to have originated as a natural hybrid between sweet orange and pomelo in the Caribbean. It thrives in warm climates and is a major commercial crop in Florida, Texas, and California.

Quick Facts

Native Range

Caribbean (Barbados); hybrid origin

Hardiness Zones

9-11

Mature Height

15-25 feet

Growth Rate

Moderate

Sun Requirements

Full sun

Soil Preference

Well-drained, sandy loam; slightly acidic

How to Identify Grapefruit

Large, glossy, dark green, oval evergreen leaves
Fragrant white, waxy flowers
Large, round, yellow to pinkish fruit with thick rind
Dense, rounded canopy
Smooth, gray-brown bark on mature trunks

Care Guide

Water deeply and regularly; do not let the root zone dry out completely
Fertilize three times per year with citrus-specific fertilizer
Protect from frost; cover or bring indoors below 28 degrees F
Prune only to remove dead wood and water sprouts
Monitor for citrus greening (HLB), scale insects, and citrus canker

Known Issues (1)

Citrus Greening (Huanglongbing / HLB)

CRITICAL

Disease

The most devastating disease of citrus worldwide, spread by the Asian citrus psyllid. There is no cure. It has caused billions of dollars in losses to the Florida citrus industry and threatens production in Texas, California, and other citrus-growing states.

Affecting 9 regions

Explore More on TreeIssues

Related Ailments

bladder wrackOTHER Knotted WrackOTHER Feather Boa KelpOTHER Sea PalmOTHER

Asian Longhorned Beetle in September: Protect Your Hardwoods NowSeptember marks the tail end of Asian Longhorned Beetle season. Here's what home...Asian Longhorned Beetle: What to Do This SeptemberAsian Longhorned Beetle reaches peak seasonal activity in September. Here's what...Asian Longhorned Beetle in September: What Homeowners Must Do NowAsian Longhorned Beetle is entering peak activity this September. Here's how to ...