VOA健康报道2025--No Soil Needed to Grow Air Plants at Home

If you are looking for houseplants that do not take up a lot of space and are easy to grow, air plants might be the right choice.

There are more than 500 different species of air plants. Officially they are known as Tillandsia. These plants are native to places in North and South America that support year-round plant growth. Air plants belong to the same family as the pineapple.

Instead of soil, these plants attach themselves to things like trees, rocks and buildings. They do not cause problems for the objects they grow on. Air plants do not have roots. They depend on specialized¹ cells – called trichomes – to permit their leaves to take in water and nutrients².

Associated Press gardening writer Jessica Damiano has experimented with air plants and offers these guidelines for people wanting to grow them.

Sunlight

Air plants require bright, indirect light. So, they should be placed near an east- or west-facing window, but not directly in front of it. Direct sunlight can burn the plant's leaves.

Watering

In homes with average humidity levels, put air plants in a bowl of room-temperature water once a week for 30 to 60 minutes. In homes with drier air, this process can be repeated when needed.

Lightly shake the plants to remove extra water. Then, place them upside-down on a cloth to dry for several hours. This step is necessary to prevent water from collecting on the plant's leaves, which can cause damage.

If using chlorinated water, it is best to let the liquid sit for 12 to 24 hours to permit the chemical to dissipate before watering plants. Air plants are especially sensitive to chlorine.

Feeding the plants

Growers should feed their air plants with any all-purpose houseplant, bromeliad or orchid³ fertilizer. The substance should be added to the soaking water monthly to provide added nutrients. Use about half the amount suggested by the fertilizer manufacturer.

Life cycle

Air plants bloom only once. The resulting pink, coral, purple or white flowers are a signal that the plants are nearing death. However, air plants produce offshoots, known as “pups.” These can be separated into new plants once they grow to about one-third the size of the parent.

So many choices

Notable air plants include Spanish moss⁴ which can be found hanging from large trees in tropical or subtropical areas. In the home, Spanish moss is grown in a humid environment, such as a bathroom.

Another kind is Tillandsia ionantha, which is also known as the sky plant. It is a shaggy-looking plant with green bracts. Bracts are leaf-like structures that grow from the area just beneath a flower. The tops of bracts can turn pink or purple before flowering.

Tillandsia caput-medusae is named for its similarity to the snake-haired head of Medusa, from Greek mythology⁵. The plant is popular because of its long, wavy⁶ leaves that grow upward from a fat, round base.

Perhaps the most unusual species of Tillandsia is the Xerographic air plant. This kind is known as the King of Air Plants. It can grow up to about one-half meter. The plant's long, thin silver leaves curl downward to produce a round shape that sets it apart from other air plants.

How to show your Tillandsia

You can place air plants in just about any spot that provides the required sunlight and good air flow.

Glass containers or terrariums are popular choices. But growers can also put air plants inside seashells or on rocks. One could even create a floating Tillandsia garden by hanging several plants from fishing line.

The plants can also be attached to natural wood pieces with wire or glue. Some choose to grow them inside hanging frames. When choosing placement possibilities, the main thing to keep in mind is to make sure you are fully⁷ meeting all the plant's needs.

I'm Bryan Lynn.

The Associated Press reported this story. Bryan Lynn adapted the report for VOA Learning English.

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Words in This Story

species – n. a group of animals or plants that are similar and can produce young animals or plants

humidity – n. a measurement of how much water is in the air

dissipate –v. to dry up, disappear through evaporation⁸ or by becoming less and less dense⁹

bloom – v. when a flower fully opens

shaggy – adj. having or covered with long, rough and messy hair

curl – v. when something moves in a circular direction

terrarium – n. a container, often made of glass, that is used to keep small plants in

frame – n. a border that surrounds and supports a picture, door or window

1 specialized   

adj.专门的，专业化的

参考例句：

• There are many specialized agencies in the United Nations.联合国有许多专门机构。
• These tools are very specialized.这些是专用工具。

2 nutrients   

n.（食品或化学品）营养物，营养品( nutrient的名词复数 )

参考例句：

• a lack of essential nutrients 基本营养的缺乏
• Nutrients are absorbed into the bloodstream. 营养素被吸收进血液。 来自《简明英汉词典》

3 orchid   

n.兰花，淡紫色

参考例句：

• The orchid is a class of plant which I have never tried to grow.兰花这类植物我从来没种过。
• There are over 35 000 species of orchid distributed throughout the world.有35,000多种兰花分布在世界各地。

4 moss   

n.苔，藓，地衣

参考例句：

• Moss grows on a rock.苔藓生在石头上。
• He was found asleep on a pillow of leaves and moss.有人看见他枕着树叶和苔藓睡着了。

5 mythology   

n.神话，神话学，神话集

参考例句：

• In Greek mythology,Zeus was the ruler of Gods and men.在希腊神话中，宙斯是众神和人类的统治者。
• He is the hero of Greek mythology.他是希腊民间传说中的英雄。

6 wavy   

adj.有波浪的，多浪的，波浪状的，波动的，不稳定的

参考例句：

• She drew a wavy line under the word.她在这个词的下面画了一条波纹线。
• His wavy hair was too long and flopped just beneath his brow.他的波浪式头发太长了，正好垂在他的眉毛下。

7 fully   

adv.完全地，全部地，彻底地；充分地

参考例句：

• The doctor asked me to breathe in,then to breathe out fully.医生让我先吸气，然后全部呼出。
• They soon became fully integrated into the local community.他们很快就完全融入了当地人的圈子。

8 evaporation   

n.蒸发，消失

参考例句：

• Be careful not to lose too much liquid by evaporation.小心不要因蒸发失去太多水分。
• Our bodies can sweat,thereby losing heat by evaporation.我们的身体能出汗，由此可以蒸发散热。

9 dense   

a.密集的，稠密的，浓密的；密度大的

参考例句：

• The general ambushed his troops in the dense woods. 将军把部队埋伏在浓密的树林里。
• The path was completely covered by the dense foliage. 小路被树叶厚厚地盖了一层。