Citrus limon 'Ponderosa' (Giant Lemon)

Citrus limon 'Ponderosa' yellow fruit hanging on a green tree branch

Citrus limon 'Ponderosa' tree with round yellow fruit among thick green leaves

Botanical name: Citrus limon

Common names: Giant Lemon, Ponderosa Lemon, Wonder Lemon

Cultivar: Ponderosa

Family: Rutaceae

USDA Zone: 9-10

Plant type: Fruit

Fruit type: Citrus

Plant form: Small tree

Mature height: 10-20 ft

Sun exposure: Full sun or bright light indoor

Cold tolerance: Frost sensitive. Protect from freezing.

Watering: Moderate; regular

Flower color: White and off-white

Suitable for: Outdoors in the suitable USDA zone; small gardens, containers, and indoor growing

Thorns: Thorny or spiny

Fragrance: Fragrant; perfume plant

Small to medium sized tree, usually to 10-25ft high. Trees are somewhat sensitive to freezes and grow best in areas having only limited frosts and freezes. The Ponderosa Lemon tends to be slightly less hardy than other lemon varieties. Grows in conditions suitable for the average citrus, water frequently except during cold months. Fertilize 2-4 times per year. Can be container grown and was historically a common lemon grown indoors in temperate climates.

Very large, bumpy skinned lemon usually weighing 2-4 pounds. Flavor is typical lemon-like.

Propagation: Commonly by grafting cuttings to various citrus rootstocks. Can also be propagated by seed which usually come true, or fairly close to their parent.