How Do You Care for a Cactus and Succulents?

Reputed to be indestructible, cacti and succulents nevertheless often die… from too much attention. Here is how to give them exactly what they like.

What light does a cactus need?

As much light as possible: a south-facing window is ideal. Without enough light, cacti become etiolated (they stretch and turn pale). In winter, a grow light can make up for it.

How often should you water cacti and succulents?

The rule: let the potting mix dry out completely between waterings. In practice, roughly every 15 to 21 days in summer, and once a month or less in winter. It is better to underwater than to overwater: a succulent recovers from thirst, never from drowning.

Which substrate?

A very free-draining substrate is essential: a special cactus mix, or potting mix lightened with sand and zeolite. A pot with drainage holes is a must: never any standing water at the bottom.

Which fertiliser for cacti?

During growth (spring-summer), a special cactus fertiliser low in nitrogen supports flowering and vigour, without encouraging soft growth. Stop all feeding in winter.

The winter rest

In winter, cacti and succulents go into a rest period: place them somewhere cool and dry, with no fertiliser and almost no water. This rest is often the condition for flowering the following spring.

FAQ: cacti and succulents

How often should you water a cactus?
Roughly every 15 to 21 days in summer, letting the potting mix dry out completely, and once a month or less in winter.

Why is my cactus going soft or yellow?
It is almost always excess water making the roots rot. Space out the waterings considerably and check the drainage.

Should you water cacti in winter?
Very little, or not at all: a dry winter rest encourages flowering in spring.

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