Variegation and colour in plants

If you search online for information about variegated plants, you’ll find plenty of blog posts offering to explain how variegation works and describing two or three different types. I’ve read lots of those posts, both when I was first learning, and more recently when I’ve wanted to explain things to other people. But they’ve never […]

Don’t ask an AI for plant advice

Plant seller Horti recently added an AI “plant doctor” to their website. Within hours of testing, it was offering potentially fatal advice.

How do you know a tradescantia is thirsty?

Tradescantias are semi-succulents, which means they’re much more tolerant of drought than a lot of plants. It also means that they’re a lot less obvious about it when they eventually do get thirsty. Growing tradescantias as houseplants is very different from having “drama queens” like coleus, nerve plants, and polka dot plants.

Is Tradescantia zebrina ‘Tikal’ dangerous?

Some people have suggested the plant has symptoms of a viral infection. Some have even gone as far as to claim that the plant should be quarantined or banned from sale for fear that it’s contagious. Others have grown the plant for years and report no evidence of the symptoms spreading to nearby plants.

“Pink Congo”, misinformation, and the downsides of global plant distribution

If you’ve been interested in houseplants for more than a year or two, you probably already know the original “Pink Congo” story. A few years ago, a new plant called Philodendron “Pink Congo” came onto the scene. Its lower leaves are dark green, but the new leaves at the top are bright pink. It quickly became a wild hit among tropical plant enthusiasts and prices skyrocketed.