LightBlack Bat Flower needs bright indirect light at 150 to 250…
WaterBlack Bat Flower needs consistently moist soil, but its…
ToxicityNot ASPCA-listed
Mature sizeIts eventual height is 2 to 3 ft / 60…
Black Bat Flower is an upright perennial grown for its extraordinary blooms. Broad, dark bracts spread like a bat’s wings around the true flowers, while long whisker-like structures add drama. Green foliage creates a lush base beneath the blooms. This tropical plant appeals to collectors seeking an unusual flowering specimen. It is more demanding than a typical houseplant and needs stable warmth, moisture, humidity, and filtered light.
Care data checked 25 September 2026 · Dany · A-Z Plants
Light requirements
Black Bat Flower needs bright indirect light at 150 to 250 μmol·m⁻²·s⁻¹ PPFD. Strong sun can damage its broad foliage.
Placement: keep it about 5 ft / 1.5 m from a south, west or east-facing window. It should not have a direct view of the sky.
Filtering: place a sheer curtain between the plant and any unavoidable direct sunlight.
Measurement: a PAR meter or PAR meter app can measure photosynthetically active radiation.
Too much light may scorch or bleach leaves. Too little light can weaken growth and reduce the chance of flowering.
Watering
Black Bat Flower needs consistently moist soil, but its roots must not remain waterlogged. Use a knitting needle or chopstick to check moisture at several depths. Water with room temperature rainwater, distilled water, or reverse osmosis water.
Soak the soil until water runs through the drainage holes. Allow it to drain fully before replacing any saucer or decorative planter.
Use only a pot with drainage holes. Saturated soil can deprive roots of air and cause rot.
Water considerably less during winter, when active growth slows. Do not allow the entire root ball to become dry.
Crispy leaf edges can follow prolonged dryness or low humidity. Yellowing and collapse may indicate that the mix stays too wet.
Soil
Use an organic all-purpose potting mix that stays lightly moist without becoming dense. Fast drainage and air around the roots are important, especially in a warm, humid room. Choose a pot with drainage holes.
DIY mix: combine 3 parts coir and 1 part pumice.
Apply worm castings as a light top dressing.
Feeding
Feed Black Bat Flower with an organic all-purpose fertilizer every 2 to 4 weeks from March to October. Apply fertilizer to damp soil and use no more than the label recommends. Avoid heavy feeding during winter, when the plant is not growing actively.
Temperature & humidity
Maintain 65 to 80°F / 18 to 27°C around Black Bat Flower. It dislikes cold drafts and unstable conditions. Aim for 50 to 70% humidity. Consistent warmth and humid air help protect its broad leaves and support flowering, while dry air can cause brown edges.
What to expect
Black Bat Flower reaches maturity in about 2 to 3 years. Its eventual height is 2 to 3 ft / 60 to 90 cm, with a spread near 12 in / 30 cm. Growth is upright and fairly compact, although the flowers and whiskers extend beyond the foliage.
Varieties & cultivars
Tacca chantrieri ‘White Bat’: White flowers contrast with bracts that range from dark purple to black.
Tacca chantrieri ‘Nivea’: This white-flowering form grows twice as large as the black form. Both its bracts and whiskers are white.
Tacca chantrieri ‘Macrantha’: Purple bracts surround larger purple flowers. Its matching whiskers are also longer.
Tacca chantrieri ‘Andreana’: Brown bracts and whiskers frame smaller flowers. Its whiskers are shorter than those of other forms.
Black Bat Flower: questions
Is Black Bat Flower toxic to cats and dogs?
Black Bat Flower is not listed by the ASPCA, so there is no official safety ruling for cats or dogs. It cannot be called pet safe on that basis. The plant is generally described…
How much light does Black Bat Flower need?
Black Bat Flower needs bright indirect light at 150 to 250 μmol·m⁻²·s⁻¹ PPFD. Strong sun can damage its broad foliage. - Placement: keep it about 5 ft / 1.5 m from a south, west or east-facing window. It should not have a direct view of the sky. - Filtering: place a sheer curtain between the plant…
How often should I water Black Bat Flower?
Black Bat Flower needs consistently moist soil, but its roots must not remain waterlogged. Use a knitting needle or chopstick to check moisture at several depths. Water with room temperature rainwater, distilled water, or reverse osmosis water. - Soak the soil until water runs through the drainage…
How big does Black Bat Flower get?
Mature size indoors: Its eventual height is 2 to 3 ft / 60….
