SKU: 5874032534
philodendron imperial black

philodendron imperial black Philodendron Black Cardinal

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Description

philodendron imperial black Philodendron Black CardinalPhilodendron 'Black Cardinal' Philodendron 'Black Cardinal' is a compact self heading Philodendron grown for deep red to black red foliage. New leaves emerge brick red, then mature into a darker, near black red tone. The plant keeps a dense rosette like shape and stays compact in a pot. Selected from an Orlando area hybridising programme and patented in 1984 as a Cora McColley cultivar, Philodendron 'Black Cardinal' is known for broad, thick, leathery

Philodendron 'Black Cardinal'

Philodendron 'Black Cardinal' is a compact self-heading Philodendron grown for deep red to black-red foliage. New leaves emerge brick red, then mature into a darker, near-black red tone. The plant keeps a dense rosette-like shape and stays compact in a pot.

Selected from an Orlando-area hybridising programme and patented in 1984 as a Cora McColley cultivar, Philodendron 'Black Cardinal' is known for broad, thick, leathery leaves, depressed veining, brick-red immature foliage, and mature black-red colour.

Black Cardinal traits for indoor pots

  • Growth habit: Compact self-heading Philodendron with short internodes and a dense rosette-like form.
  • Leaf colour: Juvenile leaves open brick red and mature to a dark black-red finish.
  • Leaf texture: Broad, thick, leathery foliage with prominent depressed veining.
  • Plant shape: Forms a compact central crown with short petioles and closely held foliage.
  • Indoor habit: Dense growth and dark foliage keep the plant compact, full, and easy to manage in a pot.

Self-heading growth and dark leaves

Philodendron 'Black Cardinal' builds from a compact central crown, with leaves held on short internodes. The short, thick petioles keep the foliage close to the plant’s centre, giving the cultivar its dense, rounded shape.

The colour shift is clear as each leaf matures. Fresh foliage opens red, then darkens quickly as the leaf hardens. Mature plants hold a deep black-red tone across the older leaves.

Growing Philodendron 'Black Cardinal' indoors

  • Light: Provide bright indirect light to maintain healthy compact growth. Direct midday sun can scorch or dull the leaves.
  • Watering: Water when the upper part of the substrate has dried. The thick roots need moisture followed by good drainage.
  • Substrate: Use an airy aroid mix with bark, coco coir or chips, perlite, pumice, and a modest moisture-holding component.
  • Drainage: Use a pot with drainage holes. The crown and lower roots should not sit in heavy, stagnant substrate.
  • Humidity: Average indoor humidity is usually tolerated, but moderate to higher humidity supports cleaner new leaf expansion.
  • Temperature: Keep warm, ideally 18–28°C. Avoid cold wet conditions around the crown and lower roots.
  • Feeding: Feed lightly during active growth. A steady nutrient supply supports dense foliage without soft, stretched growth.
  • Repotting: Repot when roots fill the pot or the crown becomes unstable. Choose a pot only slightly larger.
  • Pruning: Remove fully yellowed or damaged leaves close to the crown with clean tools.
  • Semi-hydroponics: Can adapt to airy mineral substrates if roots are cleaned carefully and the crown stays above the wet zone.
  • Propagation: Propagate from a division or stem section with a viable node and growth point; a single detached leaf will not regrow into a plant.

Common issues with Philodendron 'Black Cardinal'

  • Yellow lower leaves: Check for excess moisture in the lower pot. Improve aeration and let the substrate dry further before watering.
  • Soft crown or base: Often points to cold wet substrate or poor drainage. Inspect the crown and roots before damage spreads.
  • Faded new leaves: Check light, feeding, and root health. Weak growth can open with less depth of colour.
  • Brown patches: Look for sun scorch first, then check undersides and petioles for pests such as thrips, mites, scale, or mealybugs.
  • Loose, stretched shape: Increase bright filtered light and rotate the pot so the rosette develops evenly.

Keeping the plant compact

Philodendron 'Black Cardinal' keeps its compact shape through a self-heading habit, short internodes, and closely held foliage. Steady light, controlled watering, and a stable root ball help the crown stay dense as new leaves develop.

Remove only fully yellowed or damaged leaves. Healthy dark foliage supports the next flush of growth, and heavy pruning can temporarily reduce the plant’s dense shape.

Pet and child safety

Place Philodendron 'Black Cardinal' away from pets and children. Its tissues contain insoluble calcium oxalate crystals that can irritate the mouth, throat, digestive tract, and sensitive skin. Wash hands after pruning, and keep cut plant parts out of reach.

Philodendron genus and cultivar background

Philodendron belongs to the Araceae family. The genus name is commonly translated as “tree-loving”, though cultivated Philodendron can be climbing, creeping, rosette-forming, or self-heading depending on their background. Philodendron 'Black Cardinal' was patented in 1984 as a Cora McColley cultivar from an Orlando-area hybridising programme.

Choose Philodendron 'Black Cardinal' for a compact self-heading Philodendron with broad leathery leaves, brick-red new growth, and mature black-red foliage.

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Reviewed in the United States on December 11, 2024
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don
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This stuff works well. I've only ever used it after my tires had been punctured and ran flat... I haven't had a flat this wouldn't seal... 3 uses so far all 3 have fixed flats and been many miles put on since the repairs. I start with as little as possible and if it doesn't seal I just add more, I think I've managed to use far less than recommended and successfully sealed punctures. I've only used it on fat tire e-bike tires. I'm pretty comfortable with the seal and I have no plans to replace the tubes, which saves me a fair amount of trouble. I will update if it springs any leaks without new punctures. It's very easy to use and actually pretty clean especially compared to automotive type tire repair foams. The first repair I used it for was a brand new bike that just wouldn't hold air in the rear, totally unsure what caused it to keep losing air but 2 or 3 small doses of slime fixed it. The most recent slime repair, I had a wobbly bike ride which felt weird and I couldn't figure out why but a few hours after I had returned home both tires were totally flat. They both had a handful or more of some really heavy duty thorns stuck in the tire that likely barely punctured the tubes but the rear tire also had a roofing nail in it. I did not think the slime was going to fill that one, it was a pretty heavy leak once I removed the nail, but Slime did seal it and I've since ridden the bike twice and in the same rough conditions I normally would still holding strong at higher pressure than I normally ride, have yet to drop back down since refilling but I am hoping and expecting it won't be a problem. Two thumbs up. I always keep a small tube in my bike bag and I am confident if I ever need it while I'm out and about it will be useful.
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Reviewed in the United States on May 17, 2026
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Artie
Phoenix, US
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Who can live without slime great stuff and a good price. 👍
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Reviewed in the United States on April 11, 2026
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Mudd
New York, US
★★★★★ 5
Title: Reliable, Easy-to-Use, and Worth Every Penny
Style: 32 oz
I’ve been using Slime tire sealant for my fat tire e-bike, and I can say with confidence that this product delivers exactly what it promises. The application is simple, the results are consistent, and the peace of mind it provides is invaluable. For anyone who rides regularly — whether for commuting, recreation, or deliveries — this is a product that pays for itself many times over. The first thing I appreciate about Slime is how easy it is to install. The bottle is well-designed, the instructions are clear, and the process takes just a few minutes. You simply deflate the tire, remove the valve core, squeeze in the recommended amount, reinstall the valve core, inflate, and spin the wheel to distribute the sealant evenly. No special tools, no mess, and no guesswork — just a straightforward, user-friendly process. Performance-wise, Slime does exactly what it’s supposed to do: seal punctures quickly and effectively. I’ve had nails, thorns, and sharp debris puncture my tires while riding, and in every case where the leak was within the tread area, Slime sealed it instantly. There’s something incredibly reassuring about hearing that faint hiss of air for a second, then watching it stop as the sealant does its job. It’s a real-time reminder that this product is actively protecting you from being stranded. What sets Slime apart from other sealants I’ve tried is its durability. Once applied, it stays active inside the tube for months, ready to respond to new punctures as they happen. It doesn’t dry out quickly, it doesn’t clump up, and it doesn’t cause balance issues with the tires. For someone who rides almost daily, that reliability is a huge plus. Another thing I respect about this product is that it’s non-toxic and environmentally friendly. If a bit of sealant escapes during a repair, I don’t have to worry about it harming the environment. It’s also water-soluble, making cleanup easy if I ever need to replace a tube or tire. That attention to safety and sustainability shows that the company isn’t just making a great product — they’re doing it responsibly. The value for the price is excellent. One bottle goes a long way, and when you factor in the cost of replacing tubes, paying for roadside repairs, or even the inconvenience of being late because of a flat, Slime is an investment in both savings and peace of mind. For delivery riders like me, it’s especially valuable — every flat avoided means another day of work uninterrupted. In short, Slime is one of those rare products that I can recommend without hesitation. It’s easy to use, effective, long-lasting, and backed by a company that clearly understands the needs of cyclists and e-bike riders. It has already saved me from countless headaches, and I plan to keep a bottle on hand at all times. If you ride regularly and haven’t tried it yet, you’re taking an unnecessary risk — this is one of the best preventative tools you can add to your maintenance kit. Verdict: Five stars for performance, ease of use, and overall value. Slime is a must-have for any serious rider who values reliability and wants to keep rolling no matter what’s on the road.
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Reviewed in the United States on August 11, 2025
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Style: 1 gal, Style: 1 gal
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