Plant Clinic

Help please! Something wrong with my indoor basil plant


Hi there plant lovers, I've been having some issue with my basil plants and I have no idea what it is.

The marks look like some kind of pest but I swear I've looked all around and couldn't see anything. It kind of comes in waves, something progressed rapidly and then just stops.

They stay inside by the window and I water them when the leaves start to droop a little bit. Were repotted in the beginning of the summer.

Is this fungal? Could it be the weather change?

I tried cleaning them with diluted hydroperoxide many times but it didn't change anything.

Thanks in advance for any insight here!

by london_magnolia

2 Comments

  1. titman5000

    My guess is it’s hungry, it would be change of season and it’s looking to grow!

    When was the last time you fertilised?

  2. CelestialNomad

    There are several issues, let’s start with this, in your climate basil won’t be a perennial (multi year) herb. Unless you have a good grow light setup, it’s not going to tolerate being indoors for the next six months till you can put it out in the spring. You might be able to overwinter some cutting, root them out and plant in spring, but I would honestly just get a new one as early as they’re available next season. They aren’t especially long lived in other climate (2-3 years I think) as they’re pretty tender to even a mild winter. they don’t survive here in Texas.

    Second, that pot is too small. So you’re having to water more frequently than is ideal for it. You can go up several pot sizes. I do mine in 2-3 gallon nursery pots, or in big planters/pots with my tomatoes. They need room for roots to support all that plant. The soil should be loose, but moisture retentive. I would mix in some fine compost and pearlite to your soil mix.

    Has it already dropped below 12°C? They’re good down to that, and I would leave it outside as long as it’s not below that overnight.

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