Comments on: This Is Why Your Houseplants Aren’t Growing https://planethouseplant.com/why-arent-my-indoor-plants-growing/ Thu, 09 Nov 2023 17:08:22 +0000 hourly 1 https://wordpress.org/?v=6.9.4 By: Caroline https://planethouseplant.com/why-arent-my-indoor-plants-growing/#comment-398 Tue, 08 Sep 2020 15:22:42 +0000 https://planethouseplant.com/?p=759#comment-398 In reply to Denise Evans.

Ew, I didn’t know it went sour, just that it gets depleted of nutrients. I find pure coir a bit heavy, but with some added bark and worm castings for fertiliser it’s a great option

]]> By: Denise Evans https://planethouseplant.com/why-arent-my-indoor-plants-growing/#comment-395 Mon, 07 Sep 2020 21:57:43 +0000 https://planethouseplant.com/?p=759#comment-395 I would add one more very important line to your list. After about a year, all-purpose potting mixes break down and become “sour”. For the first several months, your plant will simply stop growing. At some point though, it will go into decline. So the point is that if you’re using regular potting mix for your plants, you need to repot every year to 18 months to keep it fresh. An alternative to that is to use coir, which is processed coconut husk. It never really goes bad, so you don’t have to worry about repotting until your plant outgrows its pot. The caveat to this is that you need to regularly fertilize because it contains no nutrients whatsoever.

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