How Often Should You Fertilise Succulents?

Quick Answer: How Often to Fertilise Succulents

For most succulents in Australia, fertilise lightly during the active growing season. This is usually spring and summer, when light, warmth and growth are stronger.

With CompleteGrow Cactus & Succulent Plant Food Fertiliser Concentrate, there are two simple feeding options:

• Every watering: use half a cap per 10 litres of water.
• Once or twice monthly: use one full cap per 10 litres of water.

Always feed only when the plant actually needs watering. Do not keep succulent soil wet just because you want to fertilise. Overwatering is still one of the fastest ways to damage succulents.

Spring Start light feeding as warmth and new growth return.

Summer Feed during active growth, but never keep pots constantly wet.

Winter Reduce feeding when growth slows and light levels drop.

Why Succulents Do Not Need Heavy Feeding

Succulents are not heavy feeders. They store water, grow more slowly than many leafy plants, and naturally handle lower-nutrient conditions better than hungry garden plants.

That does not mean fertiliser is useless. It means the fertiliser needs to be controlled. A small, steady supply of the right nutrients is better than overloading the plant with a strong feed.

Too much fertiliser, especially too much nitrogen, can push soft growth. This can make succulents look stretched, weak or less compact, especially if they are also not receiving enough light.

Signs You Are Fertilising Succulents Too Often

Succulents usually show signs when the feeding routine is too strong or too frequent. Sometimes the issue is fertiliser alone. Other times it is fertiliser combined with low light, poor drainage or too much water.

• Soft, watery growth
• Stretched or leggy stems
• Pale new growth
• Weak leaves that bend or collapse easily
• White crust or salt build-up on the soil surface
• Brown root tips or root stress
• Poor shape or loss of compact form

If this happens, stop feeding for a while, check drainage, improve light, and flush the potting mix with plain water at the next proper watering.

Signs Succulents May Need Feeding

Underfed succulents can also slow down, especially in pots where nutrients are gradually washed out with watering.

• Very slow growth during the active season
• Pale or dull colour
• Weak new shoots
• Poor flowering in mature plants
• Older potting mix that has not been refreshed
• Potted succulents that have been watered for months without nutrients

In these cases, a light feed with a cactus and succulent plant food can help restore a better nutrient routine.

Best Feeding Routine for Potted Succulents

Potted succulents need special attention because they only have a small amount of potting mix to draw from. Over time, watering can wash nutrients out of the container.

The best routine is simple: wait until the mix dries, water properly, and include a light fertiliser feed during active growth.

Always use a free-draining cactus and succulent mix. Fertiliser helps feed the plant, but drainage protects the roots.

CompleteGrow Recommendation

For most cactus and succulent collections, the best fertilising schedule is light, consistent feeding during active growth.

CompleteGrow Cactus & Succulent Plant Food Fertiliser Concentrate is designed for this exact job. Its 2-7-7 NPK ratio gives low nitrogen with higher phosphorus and potassium to support compact growth, roots, flowering and stronger plant structure.

It is made for cactus, succulents, jade, aloe, echeveria, haworthia, crassula, sedum and other dry-climate container plants that need a more specialised feeding routine.

FAQs: How Often to Fertilise Succulents

How often should I fertilise succulents?

Most succulents should be fertilised lightly during active growth, usually once or twice monthly in spring and summer. Use a low-nitrogen succulent fertiliser rather than a strong general-purpose feed.

Should I fertilise succulents every time I water?

You can if the fertiliser is diluted correctly. With CompleteGrow Cactus & Succulent Plant Food, use half a cap per 10 litres of water if feeding every watering. Do not water more often just to fertilise.

Is once a month enough for succulents?

Yes, once a month is enough for many succulents during active growth. For stronger seasonal growth, some growers feed once or twice monthly.

Should I fertilise succulents in winter?

Usually no, or only very lightly. Most succulents slow down in winter and do not need much feeding. If the plant is not actively growing, reduce or stop fertiliser.

What is the best fertiliser for succulents?

The best fertiliser for succulents is usually low in nitrogen and higher in phosphorus and potassium. CompleteGrow uses a 2-7-7 NPK ratio to support compact growth, roots, flowering and plant strength.

Can too much fertiliser hurt succulents?

Yes. Too much fertiliser can cause soft growth, salt build-up, root stress or poor shape. Succulents need controlled feeding, not heavy feeding.

Do indoor succulents need fertiliser?

Yes, but less often if they are growing slowly or receiving lower light. Indoor succulents should be fed lightly during active growth and kept in bright light to avoid stretching.

What happens if I never fertilise succulents?

They may survive for a long time, but potted succulents can slowly run out of nutrients. Over time this can mean weaker growth, dull colour, poor flowering or slower recovery.

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