How to Water Plants

All plants need watering, but some need more than others. Learn how to water your plants efficiently with these simple tips.

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Most plants need water, but concentrate on those in containers, where the soil dries out relatively quickly; newly planted specimens that haven't yet developed a strong enough root system to cope on their own; and fruits and vegetables at key stages in their growth cycle.

Preserve Water Supplies

Water is a precious commodity, but if you irrigate only those plants that need it, and water in the cool of the morning or in the evening, you can greatly reduce your impact on supplies.

Other ways to minimize water usage are to add moisture — retentive gel crystals to containers, and mulch borders every year after it has rained. Trees, shrubs and perennials will also need watering less frequently during the first few months if you plant them when the soil is naturally moist in autumn, winter and early spring. Lay turf in late winter and early spring, too, and it will usually establish well without the need for extra irrigation.

After planting, encourage deep rooting by watering thoroughly and then leaving for 7–14 days before watering again, rather than giving frequent small doses. The water will then sink deep into the soil and encourage roots to follow. Also, if planting in the rain shadow of walls and hedges use drought-tolerant species.

Save water by installing water butts around your property, connecting them to the rainwater downspouts. Metal or plastic butts are widely available, or choose something more attractive like a wooden barrel.

Rustic Wooden Rain BarrelEnlarge Photo+Shrink Photo-DK - How to Grow Practically Everything © 2010 Dorling Kindersley Limited

Different Watering Methods

Make the most of your water supplies and save yourself time and energy by using a watering method that suits the job at hand. A watering can is ideal for small areas where you want to target water accurately; hoses are best for large beds, but use them with care to avoid waste.

If you only have a few plants or pots to water, use a watering can, and pour slowly so it has a chance to soak into the roots; remove fine roses from cans unless watering new plantings. Direct water to the roots of your plants — they do not absorb water through their leaves so spraying overhead is not only wasteful but means that less moisture reaches the soil. Also avoid flowers and fruits, which may rot if too wet. Mound up the soil around the base of large plants to create a reservoir in which water will collect and sink down to the root area.

When hosing beds and borders, focus the spray on the soil, and turn it off as you move between planted areas. Long-handled hoses are useful if you have lots of pots and baskets to reach — again, turn the flow off between each container. Long-handled hoses allow allow you to direct water to less accessible plants, such as vegetables in a large bed, without treading on the soil.

Using Automatic Watering Systems

Relatively easy to install, automatic watering systems can save hours of work in the garden; attach a timer, and they will water your plot in your absence. Most come in kit form and allow you to design a system that suits your garden. Kits typically include a network of main pipes into which you insert fine feeder pipes that take water directly to individual plants or pots. These terminate in small drip nozzles, held just above soil level, that gradually release water, which drains down around the roots. Check your watering system every few weeks to ensure plants aren't being under- or over-watered, and adjust individual flow regulators as necessary. Turn off nozzles when no longer required. Set water timers to come on every day or week, in the morning or evening to minimize evaporation, and alter the program if the weather changes.

Set Water TimersEnlarge Photo+Shrink Photo-DK - How to Grow Practically Everything © 2010 Dorling Kindersley Limited
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Excerpted from How to Grow Practically Everything

© 2010 Dorling Kindersley Limited

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