Repotting

Most ZZ plant problems trace back to the same place: a root zone that stayed wet too long. Not too much water exactly, not too little – but a soil-and-pot system that never fully dried out between waterings. The plant kept looking fine on the surface while those thick, potato-shaped rhizomes quietly sat in moisture they never asked for. If your ZZ plant is yellowing, growing slowly, or has a base that feels soft when you press it, the soil setup is usually where to start. This guide covers what ZZ plant roots actually need, what a good mix looks like, how pot choice changes everything, and how to read the signals that tell you the current setup is not working. ...

If your aloe has been sitting in standard potting mix, there is a good chance the soil is working against her. You might have even used something labeled “cactus mix” from the garden center. That is a fine starting point, but here is the thing: not all cactus mixes are the same, and the recipe that works in a bright, dry room will keep the roots too wet in a dimmer one. Get the soil wrong, and all the good intentions in the world will not stop rot from quietly starting below the surface. ...

If you’ve ever brought an orchid home and wondered what on earth it was sitting in, you’re not alone. That mix of bark chunks, moss, and sometimes what looks like nothing but a clear plastic cup? That’s not a mistake. Orchid soil is really a drainage and airflow system, not a growing medium in the traditional sense. Orchids don’t live in soil in the wild. They cling to tree bark, and their roots expect light, air, and fast drying between waterings. ...

The best potting soil for indoor plants is a container mix that fits the plant’s roots, the pot, and the conditions in the room. Many foliage plants can start in an all-purpose indoor mix, while succulents need a more mineral blend and common epiphytic orchids such as Phalaenopsis need an airy orchid medium, often a coarse bark-based blend. If a plant started declining after a repot, the mix is one possibility to check, not an automatic diagnosis. Pot size, drainage, damaged roots, light, temperature, and watering can produce similar symptoms. A mix that drains at the surface can also remain wetter deeper in the pot, especially in a large container or a dim, still room. ...

By KnowYourPlant editorial team. Last updated: September 9, 2026. Knowing when to repot is one of those things that sounds obvious until you’re actually standing over a plant, trying to decide if it’s genuinely cramped or just looking a little dramatic. Most people repot too early, too often, or for the wrong reasons. A fair number also wait too long, then wonder why their plant stopped growing. The real problem is that the usual signs you’ll read about – roots at the drainage hole, slow growth, soil drying out fast – are real but incomplete. They show up in guides without context, and that missing context is what sends a healthy plant into unnecessary repot stress, or leaves a struggling one stuck in a pot it’s outgrown. ...

Your monstera looked fine last week. Now the leaves are yellowing, the soil feels permanently damp, and you have that sinking feeling something has gone wrong underground. If that sounds familiar, you might be dealing with monstera root rot - and catching it now, even before you are certain, gives you a real chance to save her. Monstera root rot is what happens when roots sit in waterlogged soil long enough that they can no longer take in oxygen. Without oxygen, roots stop functioning and begin to decay. The plant above the soil can look fine at first, then drop fast - which is exactly why so many owners get caught off guard. ...

You notice roots coming out of the drainage hole. Or the soil dries out completely two days after watering. Or the plant just looks tired, like it has been sitting in the same spot too long and quietly asking for something different. Those clues tell you to inspect the root ball; they do not automatically mean a bigger pot. If you are still deciding whether the move is necessary, start with when to repot plants. It separates strong root-bound evidence from seasonal slowdown, old mix, and post-purchase stress. ...