Hoya: The Plant I Completely Underestimated

I'll be honest — I initially bought a Hoya carnosa as a filler plant. Something cheap and easy to hang in a corner while I focused on my fancier aroids. A year later, it has overtaken my window, produced dozens of new leaves, and is one of my absolute favourite plants. I completely misjudged it.

What Makes Hoyas Special

Hoyas are wax plants — the leaves have a thick, waxy coating that makes them incredibly efficient at retaining water. This is why they're so forgiving. You can forget about them for weeks and they'll usually be fine. But that same efficiency also means they don't need much water even when actively growing.

They're also epiphytes in the wild, which means they're used to growing on trees where their roots get a lot of airflow and dry out quickly. This should sound familiar if you've read my post on choosing the right soil. A chunky, well-draining mix with plenty of bark is the way to go.

Light and Growth

Hoyas actually like more light than most people give them. Mine sits right next to a window and gets a couple of hours of direct morning sun. Under these conditions, it's been growing consistently all year, even through the darker Danish winter months — though I do have it under a grow light as well.

The vines can get surprisingly long. Mine trails from a hanging pot and has reached almost a meter and a half. If you want it to grow bushier instead of trailing, you can train the vines around a support structure — I've seen people create full circular frames covered in Hoya vines and they look incredible.

The Flowers

This is the real payoff. Hoyas produce clusters of small, star-shaped flowers that are almost impossibly perfect-looking — they literally look like they're made of wax or porcelain. Mine hasn't flowered yet, but I've been following the conditions that are supposed to trigger blooming: giving it a slightly cooler, drier resting period in winter, and being careful not to remove the old "spurs" (the little stems the flowers grew from) because they'll bloom again from the same spot the following year.

I'm very much looking forward to the day it finally decides to flower.

One Important Rule

Do not repot a Hoya unless it is absolutely bursting out of its pot. They actually bloom better when they're slightly root-bound. A Hoya in a pot that is too large tends to put all its energy into roots rather than leaves and flowers. Leave it tight and it will reward you.