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Posted 1M ago by @PotentCuttings

It is getting brown along the edges of the leaf, is that ...

#Begonia
6ft to light, indirect
8” pot with drainage
Last watered 1 month ago
Having the same issue.
Hi! Brown edges on a Rex Begonia leaf can happen naturally over time, but it’s often a sign of stress. Here’s a quick guide to help figure out what’s going on:

Normal Browning
β€’ Old leaves will sometimes develop crisp brown edges before dying off β€” especially the outer, lower ones.
β€’ If only one or two older leaves are affected and new growth looks fine, it’s likely just normal aging.

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Possible Problem Signs

If multiple leaves or newer ones are getting brown edges, it’s probably one of these:

1. Low Humidity (Most Common)
β€’ Rex Begonias love high humidity (ideally 50–60% or more).
β€’ In dry air, their leaf edges crisp up.
β€’ βœ… Fix: Place a humidity tray, group plants together, or use a humidifier nearby.

2. Underwatering or Overwatering
β€’ Too dry = leaves get crispy.
β€’ Too wet = root stress causes leaf issues.
β€’ βœ… Fix: Water when the top inch of soil feels barely dry β€” not bone dry or soggy.
β€’ Use a well-draining potting mix and pot with good drainage.

3. Too Much Direct Light
β€’ Rex Begonias need bright, indirect light β€” not direct sun, which can burn the leaf edges.
β€’ βœ… Fix: Move it away from any direct afternoon sun.

4. Fertilizer Burn
β€’ If it’s been fed recently, brown edges might mean too much fertilizer or not enough flushing.

β€’ βœ… Fix: Use diluted fertilizer and flush the pot with plain water every 4–6 weeks.

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What You Can Do:
β€’ Trim off browned edges with clean scissors (optional β€” just cosmetic).
β€’ Check for new healthy leaves growing β€” that’s a good sign.
β€’ Improve humidity and lighting conditions.
β€’ Water consistently, avoiding swings between soggy and dry.

If you’re unsure, feel free to send a photo of your Rex Begonia and I’ll help you diagnose it more specifically!

Hope this helps!
Crunchy edges means not enough humidity.