What plant hardiness zone is Gladstone

Gladstone is located at Queensland (QLD), Australia.

Plant hardiness zone (winter frost zone or gardening zone) for Gladstone is 11b by the USDA scale.

Coldest zone's winter temperature is 7.2 … 10 °C.

Australian plant hardiness zone for Gladstone is 5 by the ANBG scale.

Plants of 5 ANBG hardiness zone suitable for outdoor gardening and growing in this winter frost zone 5 ANBG.

Gladstone, Queensland @ wikipedia.