Red Heart Althea Tree
Not currently available. Please call us at 1-866-586-6283 for availability information.
Description
Hibiscus syriacus 'Red Heart' grows between 5 and 8 feet tall with a spread of about 6 feet. The Red Heart Althea tree has enormous, trumpet-like, white flowers with a ruby red eye in the center that will last all summer long. It adapts to most soil types and prefers full sun.
Characteristics
| Hardiness Zone Range | 5 - 10 |
Zones
USDA Hardiness Zones
A hardiness zone is a geographic area defined as having a certain average annual minimum temperature, a factor relevant to the survival of many plants. In some systems other statistics are included in the calculations. The original and most widely used system, developed by the United States Department of Agriculture (USDA) as a rough guide for landscaping and gardening, defines 13 zones by long-term average annual extreme minimum temperatures. It has been adapted by and to other countries (such as Canada) in various forms. A plant may be described as "hardy to zone 10": this means that the plant can withstand a minimum temperature of −1.1 to 4.4 °C (30 to 40 °F).
Grows in zones: 5 - 10
This product grows in your zone!
A hardiness zone is a geographic area defined as having a certain average annual minimum temperature, a factor relevant to the survival of many plants. In some systems other statistics are included in the calculations. The original and most widely used system, developed by the United States Department of Agriculture (USDA) as a rough guide for landscaping and gardening, defines 13 zones by long-term average annual extreme minimum temperatures. It has been adapted by and to other countries (such as Canada) in various forms. A plant may be described as "hardy to zone 10": this means that the plant can withstand a minimum temperature of −1.1 to 4.4 °C (30 to 40 °F).
