What is the best time of day to water your garden?

Keeping your garden lush in the summer can feel like a full-time job. But knowing when to water your garden can make a real difference to how well plants use the water you give them. 

Water too late on a hot day and lots of it can be lost to evaporation; leave thirsty plants too long, and they may start to struggle. It’s a balancing act! So, when is the best time to water plants? Let’s find out! 

Learn how to find a routine that works for your garden with Whitakers Garden Centre. 

Why is morning the best time to water plants?

Most gardeners agree that early morning is the best time to water garden plants. But why? At this point in the day, the air and soil are still relatively cool, so less water is lost through evaporation before it has a chance to soak into the soil and reach your plants’ roots.

Morning watering also gives any moisture that lands on leaves and stems plenty of time to dry during the day. Leaving foliage wet for long periods can create conditions in which some fungal diseases are more likely to develop, so allowing it to dry for longer is a big benefit. 

You don’t need to set the alarm for sunrise, though. As a practical rule, aim to water early in the morning - ideally before around 9am on warm summer days, as this is before the strongest heat arrives. 

Can you water your garden in the evening?

Of course - if mornings are too busy, it’s a sensible alternative. Temperatures are usually cooler later in the day, so again, less water is lost to evaporation, and more can soak into the soil around your plants’ roots. 

The main thing to watch out for is leaving your foliage wet. If the leaves sit damp overnight, it creates a hospitable environment for fungal diseases to thrive. The workaround here is adjusting your technique. 

When you decide to water in the evening, make sure to water with your watering can or hose directly at the base of the plant. Water at soil level, keep the leaves dry, and your garden should stay healthy and hydrated. 

Should you water plants during the middle of the day?

Where possible, we’d recommend avoiding watering at midday. Noon is the hottest part of the day, and strong sunshine increases evaporation, meaning more of the water you apply can be lost before it reaches the roots. 

But timing shouldn’t stop you helping a genuinely dehydrated plant. If the soil is dry and a plant is wilting, water it thoroughly at the base - don’t just wait until evening. The idea that watering in full sun will scorch your plants is also a common gardening myth. 

In fact, research has found that water droplets do not act like small magnifying glasses that burn your plants' leaves. The real issue with midday water is just wasted water. 

Does the best watering time depend on the plant? 

Morning is a good rule for most plants, but some will need watering more often than others. 

Pots and hanging baskets, for example, dry out faster than plants growing in the ground - these are the ones you’ll need to check regularly during warm weather – potentially every day when conditions are hot, sunny or windy. 

If you’ve recently planted flowers, shrubs, seedlings or fresh turf, these will also need closer attention while their roots become established. Remember: keep the soil moist but not waterlogged. 

More established shrubs and perennials cope better with longer gaps between watering, but when they do need a drink, slow, thorough watering that reaches deep into the soil is better than a light sprinkling. 

Find the right watering routine for your garden with Whitakers Garden Centre 

To sum up: early morning is the best time to water plants, with evening watering coming in at a very close second. Midday isn't ideal because of evaporation, but you should never leave a thirsty, wilting plant to suffer just because of a time crunch.

Remember, what works for one gardener may not for another. Always adjust your watering habits depending on current conditions, and don’t forget to stock up on gardening supplies with Whitakers Gardening Centre. 

We’ve got a great range of gardening tools, including bulb planting tools, compost, bark and mulch, plus garden ornaments for outdoor living. 

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