There is one simple technique that can save hours of watering. It is mulching.
Mulching with straw means less watering and less weeding. It helps the soil hold moisture. It keeps the surface shaded. It gives plants a steadier start.
By covering the soil, mulch can reduce the amount you have to water by as much as two thirds. Covered soil also means fewer weeds competing for moisture and space. Mulch helps slow run off during heavy rain. As it breaks down, it builds soil structure and improves the soils ability to hold onto moisture for longer.
The best mulches during the growing season are organic mulches. That means materials made from decomposed or decomposing plant matter. Compost, grass clippings, bark chippings, straw and leafmould are examples.
Straw mulches work well where slugs are not a big problem. They are suitable around larger plants such as tomatoes, squash and strawberries. Use straw that is local to you, such as pea straw, sugar cane straw or wheat straw. Remove weeds and water the soil thoroughly before laying the straw. Lay it a couple of inches deep. Because straw is loose, it can be laid thicker if needed.
Straw breaks down over time. It adds organic matter to the soil. It supports structure. It feeds life below the surface.
If you are using a packaged product such as GardenStraw, choose a good option rather than hay. Hay can contain wheat seeds, which may reseed in your vegetable garden. GardenStraw is processed to a short length and cleaned before bagging. This helps with weed suppression and makes it easier to spread.
Wait until seedlings are 2 to 3 inches tall before mulching with straw. Laying mulch before seeds sprout can block sunlight and reduce germination. If you are transplanting seedlings, apply straw directly after planting. Place it around the base of the plant but keep it clear of the stem.
A small amount of straw can go a long way. A few handfuls around the base of a plant can help retain water and keep soil cool. Anywhere from 2 to 5 inches is usually enough. In warmer spaces such as a greenhouse, tomatoes and cucumbers may benefit from 4 to 5 inches.
Place straw close to the root area rather than scattering it widely. Press it down so it settles on the soil surface. Mulching follows the same principle as watering. Aim for the roots.
Water the straw after laying it. This helps it settle and stay in place. In windy conditions, watering once it is down helps prevent it from blowing away.
If straw is not available, dried grass clippings are another option. Their finer texture makes them easy to spread across vegetable beds. Lay them on as you collect them.
Compost is another choice. Worms and other soil life draw it down into the soil over time. Apply compost after weeding and watering. When watering through compost mulch, be thorough so the root zone beneath it receives a good soaking.
One steady benefit of mulching is weed suppression. By blocking light, mulch prevents many weeds from germinating. Those that do appear are often easier to remove because the soil beneath remains softer.
Straw mulch is not waste at the end of the season. It continues to break down and improve the soil. It can be mixed into the soil to support structure and fertility. It can also be added to the compost pile as a carbon rich brown material to balance green waste.
Replenish straw throughout the season as it breaks down. Add more in late fall if you want insulation over winter. Straw can help retain warmth in the soil and protect plants from hard frost.
What you use depends on what you can access easily. Mulching saves time. It conserves water. It builds better soil over time. It is a small routine that can make tending a garden feel more manageable.