Oregano leaf tips turning brown/black

newtogardening_2008June 23, 2008

Don't know what to do: my oregano has been growing beautifully, but this past week I've seen almost all the leaf tips turn brownish-black, and then the brown/black color spreads inward until they completely die and fall off. I had tried to get rid of all the affected leaves, but I'd come back later that same day and even more leaves would have it.

What is it? Do I just toss the plant at this point? Can I salvage it? I've moved it a yard away from my other potted herbs.

Thank you for reporting this comment. Undo
ksrogers(EasternMass Z6)

It could be most anything, from an overcrowded pot to too much watering. Try and think back the past few weeks and recall of any fertlizers or sprays were used on it. If its indoors, it may need more sunlight. If its bugs, you may see tiny black gnats that are called fungus gnats and these can destroy plants, as well as infect every single plant indoors our outside. One way to know if its the gnats is to use yellow sticky traps and set one horizontally on the edge of the pot. Wait several hours, and if you see tiny flies stuck there, you have the gnats. My garden suffers from these as well, so I use either a Bt product to kill the maggots they produce (feed on the roots!), and also beneficial nematodes. It can also come from any soil you use as well as reused pots that are not sterilzed, and could even be in indoor plants right now. Oregano is one herb that doesn't like fertilizers and too much water. If its gnats, they can fly throughout the whole house and infest every single indoor plant too!

    Bookmark   June 23, 2008 at 12:31PM
Sign Up to comment
More Discussions
Curly leaf peppermint
Does anyone know where to obtain curly leaf peppermint...
Web Loafer
Looking for real Italian Mentuccia
Hi All; I am looking for seeds or plants of the Italian...
plants in cat litter bags?
I've seen pics of plants growing in reusable shopping...
Mint leaves have black spots. Is it mint rust?
I have taken a lot of gardening tips by reading this...
In search of the wild fennel
Hello, I'm looking for seeds from foeniculum vulgare...
Sponsored Products
Meadow Onyx Oregano Rectangular: 5 Ft. 4 In. x 7 Ft. 8 In. Rug
$199.00 | Bellacor
SSI Covers Alexa Oregano Bolster Pillow - ALOR-PBO
$34.99 | Hayneedle
angelo:HOME Hand-tufted Green Hudson Park Polyester Rug (5' x 7'6)
SSI Covers Alexa Oregano Pillow - ALOR-P17
$29.99 | Hayneedle
Kamenstein16 Cube Bamboo Inspirations Spice Rack
Contemporary Indoor/Outdoor Surya Rugs angelo:HOME Dried Oregano 2 ft. 6 in. x
Home Depot
Zuni Oregano Rectangular: 5 Ft. 4 In. x 7 Ft. 8 In. Rug
$199.00 | Bellacor
Area Rug: Salerno Mossy Gold 4' Round
$66.00 | Home Depot
© 2015 Houzz Inc. Houzz® The new way to design your home™