Brown Tips on HousePlants

Hi Judy,

I have 2 office plants that aren’t doing well and could use some advice.

The Dracaena Janet Craig is in an office lobby with only artificial light. It does not have any diseases but the leaf edges are a dry brown and some of the bottom leaves are falling off (picture attached). Is it getting too much water?

The Zebra plant sits on a shelf in a bright office but it doesn’t get direct sun. It always seems dry & sad & the leaf edges are brown (no picture, sorry).