Triple digits are coming fast this year. Here's when Texas normally sees them. Texas has eight plant hardiness zones, ranging from the cold-hardy northwestern Panhandle to the warmer southern regions.

Knowing when to plant in specific hardiness zones is important to maximize the spring season's potential. A hardiness zone is a geographic area with a similar average minimum temperature.

Instead, research your growing zone or consult the Farmers' Almanac ... should already be planted — if not sprouting — by now. Texas heat rises quickly, and young, delicate plants struggle ...

Gardeners and farmers across the U.S. look to plant hardiness zones for guidance on which plants to grow. The U.S. is divided into 13 plant hardiness zones based on the local coldest temperature ...

Since 1951, Boston has been in planting zone 7a, but the winters here are warming ... Warming zones are accelerating across the entire country. Parts of Texas, the southeast and the Pacific ...