Growing Citrus Trees in the Inland Empire
The Inland Empire's warm, sunny climate is ideal for citrus — lemons, oranges, limes, and mandarins all flourish here. With the right care, a single tree can supply your kitchen for years. Here is how to grow healthy, productive citrus in Southern California.
Planting and location
Citrus needs full sun — at least six to eight hours a day — and excellent drainage. In our clay soil, plant on a slight mound and never let the root crown sit in standing water. A south- or west-facing spot near a wall benefits from radiated warmth, which helps fruit ripen and protects against rare frosts.
Watering and feeding
Young trees need regular deep watering to establish; mature citrus prefer a deep soak every week or two rather than frequent light watering. Let the top few inches dry between waterings. Citrus are heavy feeders — use a citrus-specific fertilizer (high in nitrogen, with zinc and iron) three times a year, in late winter, late spring, and late summer.
Common problems in SoCal
- Yellowing leaves: often a nitrogen or iron deficiency, or overwatering in clay.
- Curling leaves and sticky residue: aphids or citrus leaf miner — usually manageable without harsh chemicals.
- Fruit splitting: caused by uneven watering, so keep soil moisture consistent.
Protect from frost
Most citrus shrug off Inland Empire winters, but young trees can be damaged on rare freezing nights. Cover them with frost cloth and string old-style holiday lights through the canopy for warmth when a hard freeze is forecast.
Frequently asked questions
How long until a citrus tree produces fruit?
Most nursery trees begin bearing within two to three years, with full production by year four or five.
Can I grow citrus in a pot?
Yes — dwarf varieties do well in large containers with good drainage, which also makes frost protection easier.
Arbol Roble has cared for Inland Empire landscapes since 1997, serving Rancho Cucamonga, Ontario, Fontana, Eastvale, Corona and Riverside. Request a free quote or browse our residential and commercial services.
About the Author
The Arbol Roble team are licensed landscaping and irrigation professionals (CSLB License #1077455) serving Rancho Cucamonga, Ontario, Fontana, Eastvale, Corona, Riverside, and the greater Inland Empire.