Sago palms (Cycas species) are not actual palm trees but cycads with palm-like fronds. Sago palms can grow up to 10 feet tall and wide, but they usually grow 3 to 5 feet tall. The sago palm tree is a slow-growing plant that grows best in USDA hardiness zones 8 through 11, tolerating winter temperatures down to only 20 degrees Fahrenheit. Sago palms are low-maintenance, drought-tolerant and easy to grow.
Water your sago palm deeply with the garden hose to thoroughly soak the soil around the roots two or three times per week during the first four to six months after planting it. Keep the soil evenly moistened but not waterlogged, and water the sago palm deeply once per week when rainfall is less than 1 inch after the plant is established.
Feed your newly-planted sago palm with a slow-release palm fertilizer applied on the ground around the outside edge of the root ball. Wait two to three months after planting the sago palm to fertilize it, ensuring that new growth has emerged.
Feed your established sago palm with a 12-4-12-4 NPKMg (nitrogen-phosphorus-potassium-magnesium) palm tree fertilizer during April through September, following the instructions on the package. Spread the fertilizer on the ground to cover the entire canopy area evenly, keeping the fertilizer away from touching the trunk.
Spread a 2- to 3-inch-thick layer of organic mulch on the ground around the sago palm to cover the entire root area. Keep the mulch about 2 to 3 feet away from the trunk.
Prune away any completely dead or severely damaged fronds from the sago palm, using pruning shears to cut them back close to the trunk. Remove only the lower fronds.