How about a ‘tropical pine’ for Christmas?

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It seems most folks are a bit slow in getting their Christmas trees up this year, but don’t delay any longer since trees shipped in now are best. If you wait, the cut mainland trees will dry out and can become fire hazards.

It seems most folks are a bit slow in getting their Christmas trees up this year, but don’t delay any longer since trees shipped in now are best. If you wait, the cut mainland trees will dry out and can become fire hazards.

Personally, I like living Christmas trees and my favorites are in the Araucaria group. There are more than a dozen species. These include the Norfolk pine, monkey puzzle pine, bunya bunya, hoop pine, Cook pine and several species from New Caledonia seldom seen outside this group of islands. Araucarias are not true pines at all but are primitive conifers left over from hundreds of millions of years ago.

Theory has it they were part of the tropical forests before Australia separated from New Caledonia and perhaps even South America. The common Araucaria we have in Hawaii is likely a hybrid between the Norfolk pine and the Cook pine since trees here often have characteristics of both species. The latter is from the Isle of Pines near New Caledonia and occurred in great abundance there. Although they were heavily harvested for their excellent wood, there is a big reforestation project going on since the trees help increase precipitation and improve watersheds.

It would be ideal to reforest abandoned agricultural areas such as the pineapple fields of Lanai and Molokai, thus attracting much needed moisture. The old saying, “Rain follows the forest and desert follows man” certainly seems true when we see vast areas of our islands that once were forest and now are arid grasslands. Perhaps our tropical pine could help reverse the trend.

So, what we call the Norfolk pine in Hawaii should be called the tropical Hawaiian pine since it is a hybrid.

This tree is popular in Hawaii as a cut tree because it stays fresh and green much longer than the traditional fir, spruce or pine. In Hawaii, some folks just don’t have the heart to cut the trees, so they are available as living Christmas trees grown in containers. Prices are quite reasonable, especially since the tree can be used year after year.

The trees are attractive used as an interior container specimen or planted outdoors. In decorating the Norfolk pine, it is important to keep adornment simple, since the tree itself is so ornamental.

Through the years, we have planted hundreds of tropical Hawaiian pines at the Kona Cloud Forest Sanctuary in Kaloko Mauka. Those planted in the early 1980s are now more than 50 feet high, so give the trees plenty of room if you decide to plant them in your garden. If you don’t have space in your garden, you may plant it at the sanctuary. Call 325-6440 for details.

Other cut trees on the market this year are the firs, Mexican or Portuguese cypress, Monterey pine and spruce. Each of the common types of Christmas trees available has its own advantages that should be weighed.

However, if you waited too long, remember the trees remaining might be a bit over the hill since they were probably cut quite some time ago. Exceptions are the trees grown at local tree farms.

Imported trees have some disadvantages to consider. They tend to lose their needles quickly. And, one of the most common of the spruces, the white spruce, has a strong odor that is objectionable to some people. Firs, especially the noble firs, have rich green coloring and they generally hold needles much better than spruce trees.

Freshness is very important in selecting a cut tree. Don’t buy any tree with browned needles. A discolored tree is beginning to dry out. Many people wait until the last minute to buy a Christmas tree so it will have a good appearance on Christmas Day and through the remaining holidays. Actually, just the opposite might be true.

Trees held at stores or on lots might not be kept under ideal cool conditions. It is better to buy from early shipments and place the tree in a bucket of water in the garage or storeroom. It will keep better than on the lot and you probably will have a better selection if you buy early.

If you decide to cut your own tree, several Christmas tree farms are located on our island. Monterey pines and Portuguese or Mexican cypress are fresh, attractive and have a “piney” fragrance.

Selecting locally grown trees also helps keep dollars in Hawaii.

Cut trees can be kept longer if a little soluble fertilizer is added to the water in which the tree stands. Don’t overdo it or the tree will dry out even faster than if you used no fertilizer.

Several nurseries and garden centers on the Big Island are carrying Norfolk pine, Monterey pine, Mexican cypress, spruce and others as living Christmas trees.

Some are miniatures already decorated. These can be planted in the garden in mauka areas. Fir, spruce and some pines require cold weather found above 6,000 feet.

Mexican cypress and Monterey pine will do well and look best at 3,000 to 6,000 feet elevation. Araucarias, being mostly tropical, grow well below 4,000 feet.

Araucarias do not have a pine scent, so you might miss the piney fragrance.

This column is provided by the University of Hawaii College of Tropical Agriculture and Human Resources.