Aerial roots

[Nic100]

Hi everyone,

Just looking for some opinions on a aerial root growth. I have a Phals that is growing a lot of aerial roots and I'm not sure it it's just its habit or whether it's the environment. Or both. It seems perfectly happy otherwise; it has grown lots of new leaves on the main body of the plant and on the basal keiki.

It had a repot well over a year ago, when I moved it from moss into bark. It's been in a fairly humid environment all summer, with good light and decent air circulation. And it's gets fertilized weekly, weakly.

It's a lot cooler now, and I've moved it out of its summer spot which is arctic over winter, into the living room which is warmer but a lot dryer.

I've no real objection to the aerial roots, but I'm just wondering if a change in environment could change the growth habit and encourage more roots in the potting mix?

I've got a couple of other orchids who were doing something similar but I've been able to encourage new roots down into the bark. With this plant they seem to want to grow directly up!

I'd be interested to hear what people have to say!