Delaware isn't the easiest place to grow palm trees thanks to its temperate wet climate and tiny variety of sunny days. Delaware's climate is wet, semitropical, and continental. Weather in Delaware is powerfully influenced by the ocean, which helps palm trees survive during winter.
The southern half of} the state has a milder climate than the northern part. In July, the average temperature is around 76°F (24°C). In January, the average temperature is around 31°F (–1°C). The warmest temperature ever recorded was 110°F (43°C) and therefore the lowest was –17°F (–27°C). Delaware Agriculture hardiness zones vary from 6b to 7b.
Palm Trees in Delaware
Like in several different states with temperate and wet climates, it's difficult to grow palm trees while not making a microclimate. Plant solely terribly hardy and sturdy palms that may tolerate various conditions. Also, give protection throughout cold days. A number of palms that may be grown here in Delaware are:
Needle Palm Tree – Zones 5b-11 (- 15 to - 10F)
European Fan Palm Tree – Zones 7b-11 (5 to 10 F)
Pindo Palm Tree – Zones 7b-11 (5 to 10 F)
Sago Palm Tree – Zones 7b-11 (5 to 10 F)
Saw Palmetto Palm Tree – Zones 7a-11 (0 to 5 F)
Windmill Palm Tree – Zones 7b-11 (5 to 10 F)