It sounds like your new Norfolk Island pine (Araucaria heterophylla) has been through a rough time! These plants drop their branches when their cultural requirements - particularly adequate water and light - are not met. Unfortunately the branches will not grow back, and your tree will always somewhat resemble a palm. Check that your plant has the following for improvements.

• It needs to be in an east, west or south-facing window. Northern light is not strong enough. Western light will be okay if you can protect it from harsh late afternoon sun by keeping it slightly further from the window. The position in the room should allow bright, indirect light.
• It must be in a container with a drain hole and fast draining soil. This simulates its native habitat where the rain runs through the soil quickly. Always empty out the run-off dish 15 minutes after watering.
• Humidity in the room should be above 50%. Again, this is like its native habitat and helps to keep the branches healthy and regulate evaporation from the soil. You can keep the pot and run-off dish on a wet pebble tray if necessary or use a humidifier. A simple hygrometer kept near the plant will tell you if the humidity is in the right zone.
• Check that the plant is not near an air conditioning or heating vent. The strong blasts of air that has a hotter or colder temperature create a real stress on this plant that grows in a temperate rainforest. Check for vents on the floor or ceiling that might go unnoticed.
• Norfolk Island pine needs relatively little fertilizer and one or two applications per month in spring and summer is enough. Too many feedings will make the plant structure weak.
• Water when the soil feels dry and be consistent. Do not let the roots dry completely and don't keep the soil wet.

For additional care information, see our Guide to Norfolk Island pine houseplants.

Courtesy of NYBG Plant Information