(First time posting to this sub, first year growing plants.)
Recently, about three or four weeks ago, I purchased a small Oregano plant and potted it in a terracotta pot. Through doing research and talking to people I know that plant annually I purchased the plant nutrients/fertilizer I would also need (I follow the directions to the letter to ensure I do not over-fertilize my plants), and I also found a spot in my house with ample sunlight to ensure they get the amount of daily hours they need. However my Oregano is the only one of my three plants (the other two being Lemon Thyme and Lavender) that is having issues.
There are small brown bumps on the bottom of my matured leaves and it is spreading to the smaller sprouts, these spots begin to make yellow ringed burns on my leaves (and there are a little on the stems now too). One of the stems in particular concerns me because it has begun rapidly wilting. I fear my plant is diseased and I will have to get rid of it, is that the case? Or can I save my herb plant?
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[–] Petite_Mal [S] ago (edited ago)
Thank you (and to you as well, @ArcticDweller) I have already tried pruning the affected areas about three days ago although, thinking back now, I don't think I disposed of the leaves properly because that was about when it rapidly spread... However I do have one sprout that is still unaffected by this so I think I may be able to save it. (I already know how to do cuttings so that isn't a problem luckily!)
Now, if/when I remove the oregano plant how should I sterilize the pot to ensure it doesn't happen again?
(Edit: Should probably mention, they are all individually potted plants.)
[–] Le_Squish 0 points 1 point 1 point (+1|-0) ago
One of my mentors always advised me to literally fire the soil for about 15-30 min in aluminum roasting pan before you use it again. You can also stick it in the oven. I know people that use this trick to keep their greenhouse and hydroponic outfits disease free.
[–] Petite_Mal [S] 0 points 1 point 1 point (+1|-0) ago
Thanks, I'll give that a shot!