Dieffenbachia Ruffled Edges – House Plant Journal

Dieffenbachia Ruffled Edges

Plant: Dieffenbachia

How long have you had the plant? 6 months to 1 year


The plant is putting out lots of new growth, but the new leaves stay curled for weeks and they also have a bumpy surface and frilly ruffles along the edge. My older leaves don’t have that.

I started noticing this about 3 months ago. It was in my south-facing solarium under the window sill. It gets about one to two hours of direct sun on its tallest leaves:

Since noticing this and reading your book, I have moved it to in front of a north facing balcony door. The leaves are still curled up and bumpy.

How do you determine WHEN to water? I wait for the soil to become about halfway dry before watering.

Describe HOW you water: I pour enough water so excess just starts to come out, but I have not “flushed” the soil

Additional Comments: The humidity in the solarium is between 27 to 35% throughout winter. The dumb cane sits in a group with a money tree, a banana tree, a goldfish plant and a dracaena. The other plants seem all healthy

Fertilizer? Yes, I’ve started recently – using Miracle Gro 24-8-16 all purpose


Darryl’s Analysis

Your solarium is the space houseplants dream about!  I think you should keep the plant in that room if possible.

You have the WHEN and the HOW to water generally correct.  When your light is so good, you will need to keep up with watering.  A good flushing approximately once a month would work well.

Given the good light and watering, your plant would hold onto a few more leaves for longer if given a good liquid 3-1-2 fertilizer (more info here).

The ruffled edges sometimes happen if watering is inconsistent during its development.  In your sunroom, the plant was likely growing quickly, which would have meant keeping up with watering was a challenge.  Over time, these ruffles might become less prominent but maybe as new leaves grow, you’ll just notice them less.  Overall, this is a minor cosmetic issue.  Keep up with watering and fertilizing – your light is amazing!

If you want to learn a healthy, balanced approach to houseplant care, check out my online course or my book.

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