at my local conservatory

Hi.

I have a relatively old split-leaf philodendron and brown/yellow marks are appearing on the leaves. It recently had a thripe infestation which I think I successfully saw off.

The plant is in a relatively shaded spot and I'm using a SANSI 36W LED Grow Light which is about 45cm from the tallest leaf (see image). I was wondering whether it might be light burn and whether I need to swap out the bulb for something less powerful.

Any help would be really appreciated.

https://preview.redd.it/v9rfobv3x2yd1.jpg?width=1021&format=pjpg&auto=webp&s=63ae79d4db486f6fbedd99a03cb4d7aa84cd9671

https://preview.redd.it/jh4lyav3x2yd1.jpg?width=1507&format=pjpg&auto=webp&s=819df6dea546d620cfdefee21556a9d3986a9ec1

https://preview.redd.it/i2c4ecv3x2yd1.jpg?width=653&format=pjpg&auto=webp&s=7418d2ef360fb976e7c48de6eb4b3f252ef2c1e7

https://preview.redd.it/5myzhav3x2yd1.jpg?width=1600&format=pjpg&auto=webp&s=002e31fd6334cea7a342f8fa214265b4937b8c9c

For those who appreciated my fern's growth from May-August, I thought an October update may be fun.

This was peak bloom, when the first flower fell off. My first full bloom, start to finish.

This beautiful fern thrives in this office and I can’t keep mine alive at home to save my life.

I bought this guy in the sad plant isle at Home Depot around 1998. We live in Colorado so he’s been inside his whole life. 15 feet ish tall. I love him so much!

Giant zz plant spotted at local Vietnamese sandwich shop. They actually have two of these behemoths, one at each end of the counter. Owner told me she waters them with rice water once a week. 1 gallon (3.79L) bottle for scale.

She blooms several times a year and loves this spot in my office!