Water in the small garden: observe before you water
In a patio or small garden, watering causes more problems than anything else. Before adjusting frequency, it is worth observing how water behaves: whether it forms puddles that take time to soak in, whether it runs across the surface towards the drain, or whether, by contrast, the soil dries out too quickly. In autumn, water needs decline, but on the coast daytime temperatures can still be high, while inland cooler nights reduce evaporation.
A common mistake is keeping the same summer watering programme. Another is overwatering for fear the plant will suffer. In pots, excess water can rot roots without the surface showing it. To check, push a wooden stick or your finger into the soil: if it comes out damp at depth, do not water yet. In borders, watch whether water soaks in slowly or stands; this points to the need to improve soil structure or review drainage.
- Water early in the morning to reduce evaporation losses and avoid night-time fungal problems.
- In pots, make sure drainage holes are clear; stagnant water is more harmful than a brief dry spell.
Drainage and slopes: spot problems before they worsen
Drainage is crucial in small spaces, where water has no long routes to escape. In autumn, the first rains can reveal areas where water collects. Notice where puddles remain after a downpour and whether water runs towards unwanted places, such as the foundations of the house or the interior of the patio. On the coast, sandy soils drain quickly but hold little moisture and few nutrients; inland, clay soils can become waterlogged easily.
Before carrying out works, try improving infiltration with organic matter on the surface and avoid compacting the ground. If the problem persists, a French drain or a slight slope may be needed. Do not ignore the signs: a small recurring puddle can rot the roots of shrubs and aromatic plants, especially in pots or raised borders.
- After rain, walk around the garden and note problem areas; it is the best guide for future improvements.
- In pots, place a layer of gravel at the bottom if the compost is very fine, but do not rely on it to replace good drainage.
Light and shade in autumn: rethink exposure
As the sun drops, shadows lengthen and change direction. A corner that received full sun in summer may now be in shade for several hours. Before deciding to move or plant, observe the path of light through the day and how it falls on different areas. In narrow patios, walls and buildings cast shadows that can affect plants needing sun to flower or to keep compact foliage.
On the coast, winter light is often more intense than inland, but the sea breeze can dry plants out. If you have sun-loving plants in pots, turn them periodically so they grow evenly. A frequent mistake is placing shade plants in spots that receive more autumn sun than expected, causing scorch. Likewise, sun plants moved into shade lose vigour and become more susceptible to pests.
- Use a compass or a sun-orientation app to map the light in your patio; it will help you choose suitable species.
- Check plant labels: most state light requirements, but observe them in your own garden.
Soil and pots: an autumn diagnosis
In small gardens, many plants live in pots, and autumn is a good time to check their condition. Notice whether the soil has compacted, whether white crusts appear on the surface (a sign of salt accumulation from watering with hard water) or whether roots are emerging through drainage holes. On the coast, irrigation water is often hard, which can cause toxicity in sensitive plants. Indoors, dust and pollution can seal the surface of the compost.
If the compost is exhausted, it is worth partly renewing it or repotting into a slightly larger container, but without overdoing it: excessive volume holds moisture and encourages rot. Take the opportunity to check the roots and remove damaged ones. Do not fertilise indiscriminately in autumn; slow-growing plants or those entering dormancy do not need extra feeding. A common mistake is feeding to compensate for autumn decline, which can unbalance the plant.
- Water thoroughly before repotting so the root ball comes out intact and the roots suffer less.
- If irrigation water is very calcareous, let it stand in an open container for a few hours before use.
Pruning and cleaning: criteria for not overdoing it
Autumn invites tidying and pruning, but in small gardens it is easy to go too far. Before cutting, identify which plants flower in autumn or winter and which are preparing buds for spring. A frequent mistake is pruning shrubs that flower in spring on old wood, thereby removing the future flowers. Observe the plant: if you see thick buds on the stems, they are probably forming flowers; avoid cutting them.
Limit pruning to dead, diseased or badly oriented branches. In hedges, a light trim keeps the shape without stimulating tender growth that cold could damage. On the coast, where frosts are rare, you can still prune lightly, but inland it is better to wait until spring for sensitive species. Do not forget to clean tools with alcohol before and after use to avoid transmitting disease.
- Make clean, angled cuts so water runs off and the wound heals better.
- Remove diseased prunings; do not compost them if you suspect fungi or pests.
Frequent mistakes in small patios and how to avoid them
One of the most common mistakes is ignoring scale: in a small space, a plant that grows large can smother the others. Before buying a species, find out its adult size and growth rate. Another mistake is accumulating pots without leaving space for air circulation, which encourages fungi. Overwatering out of anxiety is also frequent, especially when leaves turn yellow; yellowing can be due to too little or too much water, so check the soil before acting.
Gardening in Sotogrande and on the Costa del Sol requires adapting to the seasons: in autumn, plants slow their growth and need less water and fewer nutrients. Observe your plants regularly, note changes and act with judgement. A garden notebook, even a mental one, helps you make better decisions each season.
- Before buying a plant, check its final size and its light and water needs; avoid impulse purchases.
- Space pots at least a hand's width from the wall to allow air movement and access for maintenance.