Philodendron Black Cardinal has deep burgundy almost black leaves and red stems. … A mixture of perlite, bark, soil and charcoal has been proven to be the best potting mix for Philodendron’s. It will also grow well in
low growing clumping hybrid philodendron with dark green, almost black leaves. New emerging leaves are a beautiful glossy bronze colour. Great low-growing understory plant in shady gardens.
Black Cardinal is best grown in well-drained, moist soil in part shade. Too much light or too little moisture can cause the leaves to become pale and brown. Philodendrons also do not like overly wet or cold soils. Avoid alkaline soil.
Black Cardinal philodendron is a fantastic understory plant in shady gardens in warm, frost-free regions. It is also an excellent houseplant in bright, warm indoor spaces.
The philodendron leaves and stems are poisonous, and the juices can cause skin irritation in some people.