Hardy Citrus Atlas
Botanica • Citrus

Inventory of Hardy Citrus

Choosing a hardy citrus starts with your USDA zone and the lowest temperature actually recorded in your garden. Then use cold hardiness, harvest season and intended use to compare varieties. A sheltered wall, wind and the age of the tree can change the outcome considerably.

Find a citrus

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Explore by family or climate

Browse the site's groupings to compare varieties before opening a detailed profile.

Japanese citrus Mandarins Other hardy citrus Yuzus and papedas Grapefruits and pummelos Kumquats
Understanding climate and acclimation

Frequently asked questions

Where should I start when choosing a hardy citrus?

Record the lowest temperature in your garden, then compare the USDA zones and cold hardiness shown on the profiles.

Is a USDA zone enough to decide?

No. Wind, humidity, exposure, soil and winter protection also affect real-world hardiness.

Why filter by harvest season?

It helps you choose a variety that matches what you want to eat and spread harvests out across the garden.

Where can I find planting advice?

See the climate guide, then each variety's profile to prepare for planting.

Written by Léo · Updated

Getting started

Start your choice

Your zone gives a first reference point; protection, exposure and rootstock then refine the choice of variety.

Your starting point What to check Useful next step
USDA zone 7b Minimum temperature, length of the freeze and wind exposure. Filter suitable varieties
USDA zone 8a Minimum temperature, length of the freeze and wind exposure. Filter suitable varieties
USDA zone 8b Minimum temperature, length of the freeze and wind exposure. Filter suitable varieties
USDA zone 9a Minimum temperature, length of the freeze and wind exposure. Filter suitable varieties
Stated cold hardiness Indicative threshold, tree age and actual freeze conditions. Filter by cold-hardiness threshold
Use and harvest season What the fruit is for and the harvest timing you want in the garden. Filter by use and harvest season
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