The Texas Almond Tree will require 500 (4 weeks with cool temperatures below 45 degrees F). chill hours and thus, to break dormancy in the spring. The Mission Almond Tree also named the Texas Almond produces a very small, fat almond that will ripen in October. Because The Mission Texas Almond will bloom late, it is therefore, safe to grow in all areas with a late frost. It blooms with and is best pollinated by the Halls Hardy Almond tree. The Mission aka (Texas) Almond Tree is classified as semi-self fertile, depending on the quanity of rainfall that occurs during the period of pollination. So, this very old variety of almonds that is widely grown in Texas is called by some orchardists: the "Texas Almond."