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Spider Plants · Identification & Care
Purple Spider Plant: Is It Real? Identification, Care, and Everything You Need to Know
Direct answer: A true purple spider plant does not exist as a variety of Chlorophytum comosum. The plant most commonly called a “purple spider plant” is Tradescantia pallida, also known as Purple Heart, Purple Queen, or Wandering Jew. While both plants are popular houseplants, they belong to entirely different botanical families and have different care requirements, toxicity profiles, and visual characteristics.
Why the Confusion: Spider Plant vs. Tradescantia Pallida
The mix-up happens because both plants produce long, arching stems with pointed leaves that cascade gracefully from hanging baskets. Garden centers sometimes label Tradescantia pallida as “purple spider plant” because the foliage shares a similar growth habit, and the word “spider plant” has become a casual shorthand for any trailing plant with strap-shaped leaves.
But botanically, Chlorophytum comosum — the true spider plant — has solid green or white-variegated leaves, produces baby plantlets on long wiry stems, and is celebrated for being one of the most pet-safe houseplants available. Tradescantia pallida, by contrast, has deep purple-to-magenta foliage, small pink or purple flowers, and mild toxicity that can cause skin irritation or mild stomach upset if ingested.
Understanding this distinction matters for three practical reasons: the light and water needs of these plants are genuinely different, their safety profiles around cats and dogs diverge significantly, and your search results will lead you to the wrong care advice if you do not know which plant you actually own.
Visual Identification: True Spider Plant vs. Purple Heart
The fastest way to tell these plants apart is to look at three things: leaf color, leaf shape, and the presence of plantlets. The comparison table below breaks down the key differences at a glance.
| Feature | True Spider Plant Chlorophytum comosum | Purple Heart Tradescantia pallida |
|---|---|---|
| Leaf color | Solid green, white-variegated, or cream-striped | Deep purple to magenta, sometimes with purple undersides |
| Leaf shape | Long, slender, arching; up to 18 inches; grass-like | Pointed, lance-shaped; up to 6 inches; slightly fleshy |
| Growth habit | Clumping rosette; plantlets dangle on long wiry stolons | Trailing stems that root at nodes; spreads along surfaces |
| Flowers | Small white stars on long arching stems | Small three-petaled pink or purple flowers |
| Plantlets | Yes — baby spider plants grow at the end of flower stems | No — propagates from stem cuttings or division |
| Pet safety | Non-toxic to cats and dogs; safe for all pets | Mildly toxic; can cause skin irritation and digestive upset |
| Light needs | Bright indirect light; tolerates low light; avoid direct afternoon sun | Bright direct to bright indirect; tolerates some shade but more color in sun |
| Water needs | Moderate; let soil dry between waterings | Moderate to low; drought-tolerant once established |
Is There a Purple Variety of True Spider Plant?
No — Chlorophytum comosum does not produce purple pigmentation in its leaves under normal growing conditions. All established varieties of the true spider plant produce leaves in shades of green, white, cream, and yellow. There is no purple-flowering spider plant, no purple-variegated spider plant, and no commercial cultivar of Chlorophytum comosum that turns purple.
What some growers do observe is that spider plant leaves can take on a faint purple or reddish tinge on the underside or along the edges if the plant is experiencing stress — typically from intense light exposure, phosphorus deficiency, cool temperatures, or drought stress. This is not a variety characteristic and is usually a sign that something in the care routine needs adjustment. When the underlying stress is resolved, the leaves return to their normal green or variegated coloring.
There are, however, several beautiful and genuinely sought-after spider plant varieties that often get confused with purple plants because of their unusual coloring: the Bonnie spider plant, sometimes called the curly spider plant, has notably wavy and ruffled leaves that catch light differently and can appear to have a slight purple sheen in certain lighting conditions, especially when viewed against a light background. The Hawaiian spider plant variety features solid green leaves that are broader and more lance-shaped than the standard variety, giving it a distinctly different look from the common variegated types. These are real and worth seeking out, but they are green, not purple.
Tradescantia Pallida Care Guide
Since most people looking for a “purple spider plant” are actually growing or considering Tradescantia pallida, here is a complete care guide for this plant. If you confirmed that your plant is indeed a true spider plant, skip ahead to the next section on spider plant care for the correct guidance.
Light Requirements
Tradescantia pallida thrives in bright light and can handle direct morning sun. In its natural habitat in Mexico, it grows in open areas with full sun exposure. Indoors, place it near a south- or west-facing window where it will receive at least four to six hours of bright light daily. More light generally produces more intense purple coloring — plants grown in low light tend to fade to dull green or purple-green rather than the vivid magenta that makes this plant so striking.
If your plant is stretching toward the light, losing its compact shape, or showing more green than purple, it needs more light. A grow light bulb positioned twelve to eighteen inches above the plant for ten to twelve hours a day is an excellent supplement in darker rooms or during winter months when natural light is reduced.
Watering
Allow the top one to two inches of soil to dry between waterings. Tradescantia pallida is moderately drought-tolerant once established and is more likely to suffer from overwatering than from occasional dryness. When you do water, water thoroughly until it drains from the bottom of the pot, and then let the soil dry appropriately before the next watering. In winter, reduce watering frequency as the plant’s growth slows.
Signs of overwatering include soft, mushy stems, yellowing leaves, and a general loss of vigor. Underwatering typically shows up as wilted or crinkled leaves that perk back up within hours of watering. Both are easily corrected once you read the plant’s signals correctly.
Soil and Potting Mix
Use a well-draining, all-purpose potting mix. A standard houseplant mix with perlite added — roughly three parts potting mix to one part perlite — provides the drainage Tradescantia pallida needs to prevent root rot while retaining enough moisture to support healthy growth. You can also use a cactus and succulent mix for even faster drainage if your home tends to be humid.
Temperature and Humidity
This plant prefers temperatures between 60 and 80 degrees Fahrenheit (15 to 27 degrees Celsius) and is not frost-tolerant. It is grown as an outdoor perennial in USDA hardiness zones 9 through 12 but must be brought indoors or treated as an annual in cooler climates. Average household humidity is fine for Tradescantia pallida, and it does not require any special humidity accommodations.
Propagation
Tradescantia pallida is one of the easiest houseplants to propagate. Simply cut a stem section that is three to six inches long, remove the leaves from the bottom third of the cutting, and place it in water or moist soil. Roots develop within one to two weeks. You can also propagate by division if the plant has grown large enough to split cleanly at the root ball. Unlike true spider plants, Tradescantia pallida does not produce plantlets on dangling stems — propagation is always done from stem cuttings or division.
Toxicity: Important Pet Warning
Tradescantia pallida is classified as mildly toxic to cats and dogs. The plant’s sap contains compounds that can cause skin irritation (dermatitis) on contact and mild gastrointestinal upset if ingested. Symptoms are generally not severe, but the plant should be kept out of reach of curious pets, or pet owners should choose a different trailing houseplant if their animals are prone to chewing on plants.
True Spider Plant Care Guide
If you have confirmed that your plant is a true spider plant (Chlorophytum comosum), here is the complete care guide for your plant. The spider plant is one of the most forgiving, adaptable, and useful houseplants you can grow — it purifies indoor air, tolerates a wide range of conditions, and produces an abundance of baby plantlets that can be shared with friends or used to expand your own collection.
Light
Spider plants do best in bright, indirect light but are famously tolerant of lower light conditions. An east-facing window with morning sun and afternoon shade is ideal. Direct afternoon sun — especially through a south-facing window — can scorch the leaf tips, turning them brown. If you only have low-light conditions, spider plants will survive, though they may grow more slowly and produce fewer plantlets.
Water
Water when the top inch or two of soil feels dry. Spider plants prefer to be on the drier side rather than consistently moist — they have thick, fleshy root tubers (called rhizomes) that store water and help the plant tolerate brief periods of drought. During the growing season (spring through fall), water every seven to ten days depending on your home’s temperature and humidity. In winter, reduce watering to every two to three weeks. Brown leaf tips are common and are usually caused by fluoride or chlorine in tap water, over-fertilizing, or low humidity — none of which are serious problems, though they affect appearance.
Soil
Use a standard well-draining potting mix. Spider plants are not fussy about soil and will grow in most commercial mixes. Adding perlite or coarse sand to improve drainage is beneficial, especially if you tend to water on the heavier side.
Temperature and Humidity
Spider plants are comfortable in the same temperature range as most people: 60 to 75 degrees Fahrenheit (15 to 24 degrees Celsius). They are tolerant of average household humidity and do not require a humidifier or pebble tray, though they appreciate occasional misting if the air is very dry, particularly in winter when heating systems reduce indoor humidity.
Spider Plant Propagation: Growing Baby Spider Plants
One of the most rewarding features of spider plants is their prolific production of baby plantlets. Once your spider plant matures — usually after one to two years — it will send out long arching stems from the center of the plant. At the tips of these stems, small white flowers will appear, and after the flowers fade, baby spider plants (called plantlets or pups) develop in their place.
These plantlets can be left on the plant for a dramatic cascading display, or they can be removed and rooted to start new plants. To propagate, wait until the plantlet has developed small visible root nubs at its base, then snip it from the mother plant and either place it in water or nestle it into moist soil. Roots develop within one to two weeks. You can also root multiple plantlets together in a single pot for a fuller, bushier new plant. This is one of the most cost-effective ways to expand your houseplant collection — a single mature spider plant can produce dozens of plantlets per year.
Spider Plant vs. Purple Heart: Which One Should You Grow?
Both plants are excellent choices for hanging baskets and cascading displays, but they suit different situations. Here is a straightforward decision guide to help you choose:
- Choose a true spider plant if you have cats or dogs in the home, if you want a plant that produces cascading baby plantlets, if you want maximum air-purifying benefits (spider plants are NASA-certified air purifiers), if you want a plant that tolerates low light, or if you prefer green or white-variegated foliage.
- Choose Purple Heart (Tradescantia pallida) if you want vivid purple or magenta foliage, if you have a bright sunny window available, if you prefer a plant that trails along surfaces and can be trained to climb or spill over shelves, or if you do not have pets that chew on plants.
Related Spider Plant Guides on PlantasticHaven
Now that you have a clear understanding of the spider plant versus purple plant distinction, explore more of our spider plant coverage: our complete spider plant versus dracaena comparison covers another common identification mix-up, our plants that look like spider plants guide covers all the other plants commonly confused with spider plants, our spider plant care guide covers everything from repotting to troubleshooting brown tips, and our pet-safe houseplants hub highlights spider plants as one of the top choices for pet-friendly homes.
Common Mistakes When Caring for “Purple Spider Plants”
Whether you are growing a true spider plant or a Tradescantia pallida, these are the most common mistakes that lead to problems:
Overwatering: Both plants are more tolerant of underwatering than overwatering. The number one cause of spider plant and tradescantia death is root rot from consistently wet soil. Always check that the soil is dry before watering, and make sure your pot has a drainage hole. If you are unsure, it is better to wait another day or two than to water too early.
Wrong light: Giving a Tradescantia pallida too little light causes it to lose its vivid purple coloring. Giving a spider plant too much direct afternoon sun causes leaf tip burn. Match the plant to the light you actually have.
Ignoring pet safety: If you brought home a plant labeled “purple spider plant” and you have pets, check immediately whether the plant you received is a true spider plant or a Tradescantia pallida. The pet safety profiles are fundamentally different, and you need to know where your plant stands.
Not propagating: Spider plants produce abundant plantlets for free. Once your plant is established and healthy, start propagating the babies to expand your collection, give them as gifts, or use them to fill in sparse areas of your existing plant. It costs nothing and takes only minutes.
Frequently Asked Questions
Is there a purple spider plant variety?
No. There is no purple variety of Chlorophytum comosum (true spider plant). Plants labeled “purple spider plant” are almost always Tradescantia pallida (Purple Heart), which is a completely different plant. Some spider plant varieties can show a faint reddish or purple tinge on leaf undersides when stressed, but this is not a variety characteristic and the leaves are not actually purple.
What is the plant that looks like a spider plant but is purple?
The plant most commonly called a “purple spider plant” is Tradescantia pallida, also known as Purple Heart, Purple Queen, or Wandering Jew. It has deep purple-to-magenta foliage and trailing stems. Other plants sometimes confused with spider plants include Dracaena marginata (which has spiky, dragon-tree foliage), Liriope (mondo grass, which has grass-like clumps), and the airplane plant (Chlorophytum comosum “Vittatum”), which is a true spider plant but with broader white-striped leaves.
Is Tradescantia pallida safe for cats and dogs?
No. Tradescantia pallida is mildly toxic to cats and dogs. Ingestion can cause mild gastrointestinal upset and skin contact with the sap can cause dermatitis. If you have pets that chew on plants, choose a true spider plant instead — spider plants are non-toxic to cats and dogs and are on every major pet-safe houseplant list.
Why is my spider plant turning purple or red?
If your spider plant’s leaves are showing purple or reddish tinges, it is usually a sign of stress rather than a natural color change. Common causes include intense light exposure (especially direct sun), phosphorus deficiency (try a balanced fertilizer), cool temperatures below 50°F (10°C), or drought stress. Address the likely cause and the color should return to normal within a few weeks.
Can spider plants grow in low light?
Yes. Spider plants are one of the most shade-tolerant houseplants and will survive and grow in low-light conditions. However, they grow best in bright, indirect light, and low-light conditions will slow their growth and reduce the production of plantlets. If you are growing spider plants in a low-light space, be especially careful not to overwater, since the plant’s water needs are lower in dim conditions.
How often should I water a spider plant?
Water your spider plant when the top one to two inches of soil feel dry to the touch. In most homes, this works out to roughly every seven to ten days during the growing season (spring through fall) and every two to three weeks in winter. Always empty the drainage saucer after watering to prevent the roots from sitting in standing water.
Why is my spider plant not producing plantlets?
Spider plants typically begin producing plantlets once they mature — usually after one to two years of growth. If your plant is mature but not producing plantlets, it may not be getting enough light. Move it to a brighter location. Overcrowded roots can also inhibit plantlet production, so consider repotting into a slightly larger container if the roots are very tightly packed.
What is the difference between spider plant and airplane plant?
The “airplane plant” is simply a named variety of Chlorophytum comosum — the true spider plant. Its scientific name is Chlorophytum comosum “Vittatum.” It has broader leaves with a white or cream stripe down the center, making it visually distinct from the standard variegated spider plant which has white edges and a green center. Both are true spider plants, both are pet-safe, and both produce plantlets in the same way.
Evidence and Editorial Notes
- All botanical plant names and toxicity information were verified against the ASPCA Animal Poison Control Center database and the Pet Poison Helpline.
- NASA Clean Air Study designations for spider plant (Chlorophytum comosum) air-purifying capability are cited from the original Wolverton, Douglas, and McDonald research published in 1989 and updated in subsequent NASA interior landscape plant research.
- The distinction between Chlorophytum comosum and Tradescantia pallida is based on current botanical classification as confirmed by the Kew Gardens Plants of the World Online database.
- Care guidance reflects standard horticultural practice for both species as documented by the Royal Horticultural Society and the Missouri Botanical Garden.