If you are looking for a somewhat cold hardy palm tree you may want to consider the queen palm (Syagrus romanzoffiana). With a more delicate-looking foliage than other palms, it produces huge clusters of green fruit in the winter. The queen palm will grow to a height of 50 feet within its USDA hardiness range, zones 9b to 11. Although the tree is not picky about soil texture, its life depends on soil pH: it must never be placed in alkaline soil (pH higher than 7.0). Taken care of properly, the queen palm is a fast-growing, easy care palm.
Grow the queen palm in full sun.
Perform a soil pH test. Soil testing kits are available at most large garden centers. Your county cooperative extension agent may also perform soil testing. If you use this option, make sure that you tell the agent that you are planning on growing a queen palm and get suggestions to bring your soil to an acid pH.
Amend the soil according to the results of the soil pH test. The queen palm must not be grown in alkaline soil as it can kill the tree.
Water the tree by flooding it and then allowing the soil to dry within the top 2 inches. In the summer the tree will require more water so keep an eye on the moisture content of the soil.
Create a ring around the palm tree that extends 1 foot from the trunk. Pull all weeds and remove any debris, such as rocks, from this ring.
Fertilize in March and July with a palm fertilizer. Queen palms require manganese, so look for a palm fertilizer that contains this trace mineral. Apply the fertilizer within the ring that you created, according to the rate recommended on the fertilizer package. If you use fertilizer spikes, place them no further than 4 inches below the surface of the soil.
Prune the queen palm from September to November. This tree is sensitive to over-pruning, so remove only dead or yellowing fronds.