I, also, just purchased a majesty palm about 2 months ago and have not had the chance to repot as of yet. Leaves are turning brown and I have purchased a great large urn...now, what type or combination of soil do I choose???? HELP !
As long as the soil is well draining, you can use a good houseplant soil and Perlite and be ok. Just know, Majesty palms sometimes don't always behave well as an indoor plant. Keep it well watered with plenty of light.
Any kind of soil will work, but just keep it moist and not wet. I dampen mine, then turn it around so it stays damp longer.
Although growers may certainly be successful with a variety of approaches, I would tend to agree with Bluewing. I've grown these plants for close to 20 years and they do much better in a fast draining soil. My specimen is now close to 14 feet (over 4 meters) tall and grows in a tropical atrium next to our pond. The palm can make a very nice house palm, but it can be fussy. Ravenea rivularis is the most common species sold as the Majesty Palm in the United states and in the wild it prefers lots and lots of water and bright light but does not actually grow in water. Mud around the roots can be fatal according to published literature. All scientific references says to grow it in full sunlight. But there is a requirement! I once tried to grow five of these Majesty Palms in my front yard in South Florida and all five died a slow death. I finally went to see a large grower of these palms in Homestead, FL and the trick is the water! They need lots of water but the grower, who was one of the largest in Florida, insisted to use fast draining soil! In our atrium the palm gets a lot of humidity since it is next to the pond, bright filtered light and, during the summer, almost direct overhead light which is slightly filtered by the Lexan skin that covers the building. The palm grows so fast we have to remove numerous fronds each year to keep it from blocking the walkway and the view of the pond. These palms love fertilizer. Without control, such as frequent removal of fronds, the palm can grow to over 40 feet in height! A major problem with growing one in a house is the light. I've seen quite a few people try to grow one in a darkened living room and in just a few months the palm is in the trash. This plant needs bright light and in Florida the brig growers grow them in full sun. So if you buy one, and suddenly move it into a darkened room, the palm which has spent its entire life in the sun just can't adjust. Despite the fact it is commonly grown and sold in the United States, it is considered a near endangered species in the plant's native Madagascar. In its home range the species is commonly found along river banks near the fringes of rain forests. As a result, this palm loves water! Ravenea rivularis is frequently offered very inexpensively at discount stores. But in most case it is not a good house plant unless you've got a greenhouse and are willing to water it often or a very bright room where the plant can grow near a bright window.
