虽然大多数人将圣诞树从一个盒子里拉出来或从农场购买一个砍树，但过去几年我们只需将我们的餐厅从餐厅移到假日季节。它可能没有与切割树相同的魅力，但它对于环境来说明显更好，并且在今年剩下的时间里作为一个可爱的室内植物。我在谈论一个Norfolk Island pine（araucaria heterophylla.），经常缩短到诺福克松树。
当我的“成熟”诺福克岛松的树干几乎不比我的拇指很宽，这很难相信！但是，当作为室内植物保持时，这棵树将慢慢成长，十年只达到大约五到八英尺。这使它成为the perfect size for decorating as a Christmas treeor cheering up a bright corner.
作为热带植物，诺福克岛松树等明亮的阳光和高湿度。如果可能的话，将树放在朝南窗口前面, or at least in a location that receives bright indirect light. Turning it every week or so will keep it growing full and straight.
Although Norfolk Island pines tolerate average household humidity levels, they will do best with more humid conditions. To provide this, surround your tree with other houseplants or place a saucer of pebbles and water under the tree, ensuring that the plant does not sit directly in the water. Aweekly misting也会做诀窍。此外，避免将树放入可能感受门，窗户和空气通风口的选秀位置。
与大多数室内植物一样，一旦土壤的土壤感觉干燥，就可以了诺福克岛松. Fertilizing isn’t imperative, but you can feed the tree once a year or as often as every two weeks, if you want it to grow faster, with a general-purpose houseplant fertilizer. Regardless, do not feed it during the winter-spring seasons: summer is best.
Should you prune your Norfolk Island pine? No. Cutting it back will make the tree look distorted or even encourage it to become shrubby. As the tree matures, a few lower branches will naturally die, and these can be removed — they’ll usually fall off of their own accord, but you can also snip them off with pruners. If, however, it begins dropping numerous branches, make sure that it is receiving proper care (see the FAQs below for more details).
But what if the tree gets too tall for the space it’s in? Trimming the top off of a Norfolk Island pine will likely not harm it, so if it threatens to touch the ceiling, you can cut off the very top of the tree, removing just the “star cluster” of new growth or as much as desired down to just above a whorl of branches. This will prevent it from growing any taller, but it won’t be as pretty.
Repotting a Norfolk Island pine
Norfolk Island pine trees only need to be repotted about once every two to three years.
Keep in mind that putting it in a larger pot will encourage the tree to grow bigger, so if you want to slow its growth, repot into a similar-sized container with fresh soil. For best results, choose a well-draining potting soil, ideally one containing sand andcoconut coir, and a container with drainage holes.
诺福克岛杉木传播 - 种子与扦插
将锅放在明亮的窗户中，保持70到80 f，使用热垫如果有必要的话)。用植物先生保持土壤moist but never soggy. In 10 to 21 days, you should begin to see sprouts appear! At this point, average household temperatures should suffice (60 to 90 F), and you can begin watering normally once the young saplings are established.
If you have decided to trim the top off anyway (see the “pruning” section above), you can try rooting the cutting. It has to be the growing top, as a branch will not grow into a tree but rather continue growing as a branch, though it will root.Remove the needles from the bottom inch of the cutting, then insert the cutting into a clean, well-draining growing medium. If desired, you can apply a rooting hormone (这是我使用的那个) to improve your chances of success before planting the cutting.
Cover the pot with a clear plastic bag to form a humidity tent, or place it in a terrarium or greenhouse. Check on it daily and moisten the soil as needed. Because Norfolk pines grow slowly, this process takes some patience, but if all goes well, you should eventually see signs of new growth.
Brown or yellow needles often indicate insufficient humidity, so try surrounding the tree with other houseplants, placing a tray of pebbles and water underneath, misting the branches weekly, or putting a dehumidifier in the room.
If humidity doesn’t seem to be the problem, look for other potential stressors, such as too direct or too little sunlight, over- or underwatering, or a draft. See the “Care” section above for ideal conditions.