One of the top ten almond cultivars is the Texas Mission tree.  The small-to-medium sized almond tree with a spreading, open canopy usually grows 10-15 ft. It has a showy white bloom which produces a wonderfully sweet nut. The Texas Mission Almond Tree is semi-self fertile and pollinates best with the Nonpareil. Almonds grow best in deep, well-drained soils and require a mild Winter with at least 500 chill hours and a long, rainless, hot Summers with low humidity.