How to repot succulents in spring

Spring is the best time of year to repot succulents. As the days lengthen and temperatures climb, your plants wake from their winter rest and start pushing out new roots. Repotted now, they establish quickly and fill their new pot with healthy roots before the main growing season begins.

Repot when a plant has outgrown its pot, when the compost has become compacted and waterlogged, or when you simply want to refresh the soil mix. Below we cover the whole job, from choosing a container to getting the soil mix right.

Why spring is the best time to repot

As light levels rise and the risk of frost passes, succulents come out of their dormant or semi-dormant winter state and start growing in earnest. Roots that barely ticked over through the colder months become very active, and that is when you want to repot.

In fresh soil and a larger pot, the plant can spread into new compost, anchor itself firmly and draw on fresh nutrients just when it needs them most. Plants repotted in spring typically put on noticeably stronger growth through summer than those left in tired, old compost.

Signs your succulent needs repotting

Not every succulent needs repotting every year, and there is no point disturbing a plant that is perfectly happy. These are the signs that it is time:

Roots are growing out through the drainage holes. This is the most obvious sign: the plant has run out of room and is looking for more space.
The plant feels loose or unstable in its pot. A rootbound plant can become top-heavy and start to tip, because the root ball has nowhere left to expand.
Water runs straight through without soaking in. Old, compacted compost loses its structure and drains very poorly, and the water that pools in it puts the roots at risk.
Growth is pale, slow or stunted even though conditions are good. When a plant struggles despite correct watering and light, spent compost with few nutrients left is often the cause.
The pot is clearly too small. If the plant's canopy hangs well over the edge of the pot, it is almost certainly time for a bigger one.

Choosing the right pot

The pot you choose has a direct effect on how well your succulent grows. Drainage and size matter most.

Every pot must have at least one drainage hole in the base. Without one, excess water has nowhere to go, and even the best-draining compost will eventually become waterlogged. Standing water around the roots is one of the most common causes of root rot in succulents.

When you size up, choose a pot only one or two sizes larger than the current one, usually around 2 to 4cm wider in diameter. It is tempting to go much bigger, but an oversized pot holds far more moisture than the plant needs, and that favours root rot. Aim for a fit that is snug but not tight.

Terracotta and plastic both work for succulents. Terracotta is often preferred because it breathes: the porous clay lets excess moisture evaporate through the sides of the pot, so the roots stay drier between waterings. Plastic pots hold moisture for longer. That can suit very warm, dry conditions, but in the cooler, more humid UK climate it means you have to be more careful with watering.

Getting the soil mix right

Soil mix is arguably the most important variable in succulent care. A good mix gives your plants a firm foundation for years of healthy growth, and with a poor one, even the most attentive watering will struggle to make up the difference.

The mix needs to drain freely. Succulents evolved where the soil drains almost instantly after rain, and their roots cannot cope with staying wet for long. Standard potting compost straight from the bag holds far too much moisture on its own and will cause problems over time.

The mix we recommend is simple: 1/3 good quality multipurpose compost, 1/3 grit or perlite, 1/3 John Innes No. 2 and some slow release fertiliser. Coarse grit or perlite improves drainage and opens up small air pockets and channels in the compost, which suits succulent roots. Coconut coir is also very free draining, and it rewets more easily after long dry spells.

When you repot, remove as much of the old compost from the root ball as you can and start with fresh mix. Old soil loses its structure and drains less well over time, and it can harbour disease or compacted mineral deposits.

How to repot: a step-by-step guide

Step 1: wait for the soil to dry. Repotting is easiest when the compost is slightly dry rather than wet, so water your plant and then let it dry out. Dry soil comes away cleanly from the roots, and any minor root damage will callus over more readily in drier conditions.

Step 2: remove the plant from its old pot. Tip the pot gently on its side and ease the plant out, supporting the base of the stem rather than pulling on the leaves. If it is stuck, run a thin knife or chopstick around the inside edge of the pot to loosen it. With a very rootbound plant in a plastic pot, you may need to break the pot.

Step 3: clean the roots. Shake or gently tease away as much of the old compost as you can with your fingers, then look closely at the roots. Healthy roots are white or light tan, firm and slightly springy. Trim off any that are brown, mushy or hollow, cutting cleanly with sterile scissors or a sharp knife, and leave the cut roots to dry and callus for an hour or two before you carry on.

Step 4: prepare the new pot. Cover the drainage hole with a small piece of mesh, a broken crock or a few pebbles so the compost does not wash out, then add a layer of your gritty mix to the base. You want the plant to sit at roughly the same depth as before.

Step 5: position and backfill. Hold the plant in the centre of the new pot at the right height and pour the mix in around it, firming gently as you go. Do not press down too hard. The compost should be in good contact with the roots without being compacted. Leave a small gap between the soil surface and the rim so the pot is easy to water.

Step 6: top dress and settle. Add a layer of decorative grit or gravel over the soil. As well as looking good, it keeps the base of the plant dry, deters moss and algae and helps the soil hold its structure. Tap the pot a few times on your work surface to help the compost settle around the roots.

Step 7: wait before watering. Leave the plant in a bright, sheltered spot for at least three to five days before you water it. This gives any minor root damage time to heal and lowers the risk of moisture getting into fresh wounds. For the first watering, drench the soil thoroughly and let it drain completely before you put the pot in its final position.

Close-up of a succulent plant with green and purple leaves

Feeding at repotting time

Repotting is a good time to start feeding, because you have direct access to the root zone and can spread nutrients evenly through the fresh compost from the start.

We recommend mixing a slow-release granular fertiliser into your soil mix before potting up. A 5 to 6-month formulation is ideal: it releases nutrients gradually as the plant grows through spring and summer, with no risk of burning. Mix it into the compost following the packet directions before you begin, and you will not need any liquid feed for the first few months.

If you prefer liquid feeding, give the plant two to three weeks to settle into its new pot first, then use a balanced feed diluted to half the recommended strength. Overfeeding can stress a root system that is still recovering from repotting, so go gently in the early weeks.

Aftercare: the first few weeks

Put your newly repotted succulent somewhere bright, but out of direct, scorching sun for the first week or two. Away from harsh midday sun, it can settle in without the extra stress of intense heat while its roots re-establish.

For watering, follow the 3 D's: Drench, Drain, and Dry. Soak the soil so the water reaches the base of the pot, let it drain completely, and do not water again until the compost has dried out entirely. In spring that usually means watering every seven to fourteen days, depending on pot size, temperature and how much light the plant gets.

Some drooping or flagging straight after repotting is normal. The plant is reacting to the disturbance and should recover within a few days as the roots settle. If it is still wilting after a week, check the roots for damage or disease.

Once you have found the plant a good spot, leave it there for the first few weeks. Moving it around disturbs the roots while they anchor themselves in the new compost, and plants establish most reliably when left alone.

Thank you for reading!

If you have any other care questions, email us at info@surrealsucculents.co.uk and we will be happy to help.

You can find more of our care guides in the Plant Care & Advice section.

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