Tillandsia juncea is a wonderful choice for anyone looking at growing their first air plants. Sleek and beautiful, their growing conditions may seem a little odd at first, but once you get the hang of them, they make an excellent addition to any home.

Our expert gardeners will tell you all you need to know to take care of an air plant in this comprehensive guide.

What Is Tillandsia Juncea?

Tillandsia juncea is a flowering air plant native to Central and South America. Like most plants in the Tillandsia (air plant) genus, it is an epiphyte that does not need soil to grow. Instead, it absorbs water and nutrients using specialized cells in the leaves.

In indoor cultivation, Tillandsia juncea typically grows up to 20 inches (50 cm) in height. It has a distinctive grass-like look, with thin, long leaves sprouting from a brown, hardened stolon.

Tillandsia juncea leaves are usually 4 inches (10 cm), silvery green, and will develop a reddish tint when the plant blooms. A variety of this plant, called Tillandsia juncifolia, produces vivid green leaves.

Tillandsia juncea blooms once in its lifetime. The inflorescence is very long, often up to 20 inches (50 cm), with floral bracts that are scaly, overlapping, and reddish in color. The actual flowers are about 1.5 inches (4 cm) long and bloom in shades of pale or dark purple.

After the plant has flowered, it will start producing offsets, which can be used for propagation.

– Is Tillandsia Juncea Toxic?

Air plants are not toxic to cats and dogs. However, it’s best to keep your Tillandsia juncea away from pets since they can easily eat or damage this delicate plant.

Tillandsia Juncea Care Guide

If you’re new to air plants, caring for Tillandsia juncea can seem like a real challenge. But once you understand their growing requirements, you’ll discover that these plants are pretty low maintenance.

Let’s start with the most pressing question on everyone’s mind:

– Do Air Plants Need Soil to Grow?

No, air plants do not grow in soil. On the one hand, this is excellent news for houseplant lovers. You don’t have to think about the right soil mix, worry about fungus gnats and root rot, or wonder when to repot your Tillandsia juncea. But on the other hand, the fact that these plants don’t need soil means that they have a completely different care regime to other indoor plants.

So how do air plants grow? To understand how these plants survive, you need to start by looking at how they grow in their natural habitat. Air plants are epiphytes, meaning that they attach themselves to tree stems and branches. But unlike other epiphytic species, they only use the roots to grab onto the tree and use their leaves to absorb moisture and nutrients.

When you buy a Tillandsia juncea, you will notice that it doesn’t have roots but a hardened, woody stolon at the bottom of the leaves. Yet, the plant can develop roots under the right circumstances. This takes us to the next question.

– What Can You Grow Air Plants On?

Air plants are very versatile, and there are several methods you can use to display your Tillandsia juncea.

Here are a few ideas you can try:

  • Aeriums: an aerium is a terrarium for air plants. Use a piece of wire or fishing line, and loop it between the leaves. If you use wires, avoid copper, as it is toxic to air plants. Then simply hang the plant upside down. This is a very beginner-friendly method, as it allows you to move the air plant whenever you need to water or fertilize it.
  • Terrarium: keep your Tillandsia juncea in an open terrarium, along with other humidity-loving plants. You can use materials such as rocks, sand, even moss for putting the plant on. Make sure that the plant is sitting upright and that the plant base is kept dry.
  • Wood mounting: air plants look stunning when mounted on pieces of driftwood or bark. You can use twine, hangers, or U-bolts to mount them on a wooden panel. With this method, the plants won’t grow roots, and you can easily remove them for watering. For a more permanent display, you can apply a bit of plant-safe, waterproof glue to the plant’s woody bottom, then attach it to the surface you want to keep it on.

– Light Requirements

Tillandsia juncea grows best in bright indirect light. Some direct sun is fine, but avoid exposing the plant to the hot midday sun, as this can burn the leaves.

You can keep your Juncea air plant in a window with eastern exposure. This way, it will receive plenty of light in the morning, but it will be sheltered from the heat and intense light later in the day. For rooms with southern and western exposure, keep your air plant a couple of feet away from the window, or use sheer curtains to filter the sun.

During the winter months, you may need to give your Tillandsia juncea a bit of a light boost. The easiest way to do this is to keep the plant under a grow light.

– Temperature Requirements

The ideal temperature range for Tillandsia juncea is between 50 F and 80 F (10 C to 27 C). This means that the plant will grow comfortably in most homes and can even be kept outdoors. However, as a tropical plant, it is very sensitive to frost and can suffer permanent damage if kept in temperatures below 32 F (0 C) for extended periods.

– Water Requirements

How do you water an air plant? Watering Tillandsia juncea is very different from most houseplants. Once a week, you will need to soak the air plant in a bowl of water. Make sure that the entire plant is submerged, and let it stay there for 20 to 30 minutes. The plant will absorb the water it needs through its foliage.

You can’t overwater Tillandsia juncea; it will suffer if it’s kept wet for too long. After each watering, make sure that you allow the water to drain from the leaves. The easiest way to do this is to keep it upside down for a couple of hours. If you allow water to accumulate in the crown, your Tillandsia juncea will start to rot.

How do you tell if an air plant needs water? Simply check the leaves. If they feel a bit soft and wilted and their color has faded, then it’s time to give your Tillandsia juncea a good soak.

– Humidity Requirements

Tillandsia juncea has moderate humidity needs. A room with a humidity level of 40 to 50 percent is ideal. If the air is too dry, you can give the plant a light misting at the bottom of the leaves. , Take care not to spray water on the crown.

Good air circulation and aeration are just as important. This will allow the plant’s leaves to dry out between waterings and prevent fungal problems such as rot. However, avoid placing your Tillandsia juncea next to a heating vent or air conditioning unit, as any sudden changes in temperature and air moisture will shock the plant.

– Fertilizer Requirements

Tillandsia juncea’s growth rate is slow, and it will take several years to reach its full size. As a result, it has moderate feeding requirements. Once a month, throughout spring and summer, you can use a low-nitrogen fertilizer to encourage blooming. The plant doesn’t need any fertilizer applications during winter.

To fertilize Tillandsia juncea, simply submerge it in a diluted fertilizer solution for a few minutes, then take the plant out and allow it to dry. You can also use fertilizer sprays specially designed for air plants.

When buying fertilizers for your Tillandsia juncea, make sure that they don’t contain copper or zinc micronutrients, which are toxic for this plant. Also, avoid organic fertilizers such as fish emulsion. These fertilizers only work for plants that are growing in soil.

Tillandsia Juncea Propagation Guide

The easiest way to propagate Tillandsia juncea is by separating the new growth, or “pups,” from the mother plant.

This method is closely linked to the plant’s flowering season. Air plants bloom once in their lifetime, and after the flower has wilted, the plant will start growing small offsets from its base. These offsets can then be removed to create new air plants.

Here’s our step-by-step guide to propagating Tillandsia juncea:

  • Wait until the air plant has flowered.
  • During this period, you should provide your Tillandsia juncea with fertilizers once a month to encourage offset growth. Soak the plant as usual, but keep the flower above the waterline to prevent rot.
  • Remove the flowering stem after it has wilted, and you will notice small ‘pups’ growing from the base of the plant.
  • Allow the offsets to grow to at least one-third of the mother plant’s size.
  • Hold the ‘pup’ from the bottom, and use your fingers to give it a gentle twist until it detaches from the main plant;
  • Soak the ‘pup’ in water for 20 minutes, then care for it the same way you would for a mature plant;
  • After they flower and produce offsets, air plants will slowly begin to die. So if you notice that the mother plant is starting to wilt after the ‘pups’ have been separated, don’t despair. This is part of the plant’s natural growth cycle, and at least you now have several new plants to enjoy.
  • Tillandsia juncea can also be grown from seeds. However, this is a complex and lengthy process, and it’s best left to expert horticulturists.

Common Pests and Problems

– Dry, Shriveled Leaves

This is a sign that your Tillandsia juncea is dehydrated. Although this plant can absorb moisture from the air using its leaves, it is not enough for healthy growth. Once a week, you will need to soak your Tillandsia in a pot of water for at least 20 minutes.

– Soft, Brown Leaves

There are several reasons why the leaves on your Tillandsia juncea are turning brown. This could be due to fertilizer burn, a pest infestation, toxic reaction to copper, but most likely, overwatering. First, check the plant’s stolon. If it also feels soft to the touch, it can indicate that crown rot has set in. This is very bad news for your air plant, and saving it is almost impossible.

– Can You Save an Overwatered Air Plant?

Overwatering is fatal to Tillandsia juncea. If you notice that the plant’s base has started turning soft and black, that’s a sign of crown rot. In this case, prevention is the best cure, so make sure that you keep the plant upside down after watering to allow the water to drain from in between the leaves.

– Pests

Tillandsia juncea can be susceptible to scale and mealybugs infestations. Both these insects will drink the sap from the leaves and can cause serious damage if left unchecked. To remove them, spray your air plant once every five to seven days with an insecticidal solution. A mix of Imidacloprid and water should do the job nicely.


Tillandsia juncea offers a fantastic introduction into the world of air plants. The slender leaves make a great addition to any room, while the stunning flowers never fail to impress.

Growing your own may seem unusual at first, but if you remember the basics, you can’t go wrong.

  • Tillandsia juncea is a flowering air plant native to the tropical regions of Central and South America.
  • It produces a long inflorescence, with red and purple flowering stems.
  • This plant doesn’t need any soil to grow and can be kept in an air garden, terrarium, or mounted on wood.
  • You can propagate Tillandsia juncea by separating offsets from the mother plant.
  • It will bloom once in its lifetime, then gradually die down after the flower has wilted and the offsets have been removed.
  • Tillandsia juncea is deathly sensitive to water building up between the leaves, which can cause crown rot.

Now that you know how air plants work, why not grab your own Tillandsia juncea and give growing it a try?

5/5 - (18 votes)
Evergreen Seeds