Citrus sinensis 'Navel' (Navel Orange Tree)
Botanical Information
Family | Rutaceae |
Genus | Citrus |
Species | sinensis |
Cultivar | 'Navel' |
Category | Tropicals, Woody |
Type | Tree (evergreen) |
Ethnobotanical Uses Disclaimer | Eaten fresh, used in juice and a variety of desserts. |
Details
USDA Hardiness Zone | 9 - 11 |
USDA Hardiness Ref. | |
Canadian Hardiness Zone | Requires cold season protection under glass. |
Canada Hardiness Ref. | |
RHS Hardiness Zone | H1c - H4 |
RHS Hardiness Ref. | |
Temperature (°C) | -10 - 10 |
Temperature (°F) | 14 - 50 |
Height | 4.6 - 7.6 m |
Spread | 4.6 - 7.6 m |
Growth | Medium |
Flowering Period | January, February, March, April, December |
Description and Growing Information
General Description | Trees have glossy green foliage and 4-petalled white fragrant flowers. |
ID Characteristic | Navel oranges are seedless. |
Shape | Rounded crown. |
Propagation | Navel oranges can be propagated through cuttings and grafting. |
Cultivation | Grows best in full sun in well-drained soil. Let soil dry between waterings. |
Pests | Mediterranean fruit flies, fungal leaf spots, blights, aphids, sooty mold, root rot, and viruses. Xylella a bacterial disease is a serious threat to many horticultures crops due to its virulence and wide range of species it can infect. It can infect more than 560 species with wide ranging symptoms including leaf scorch, yellowing and scorching, wilt, branch and twig dieback and plant death. These symptoms can be identical to other symptoms such as drought and weather stress. Infected plants show symptoms within a few years after planting. |
Notable Specimens | Pinewood Estate, Bok Tower Gardens, Lake Wales, Florida, United States of America. |
Bark/Stem Description | The tree naturally has multiple trunks but can be trained to form a single stem. Branches are thorny. |
Leaf Description | Shape ranges from oblong to oval. 6.5 - 15 cm long and 2.5 - 9.5 cm wide, often with narrow wings on the petioles. |
Flower Description | Fragrant, produced in clusters; bloom time is spring and winter. |
Fruit Description | The fruits are easy to peel and the slices separate easily. |
Texture Description | Leaves are leathery and glossy. |