Newly planted Laurel hedging needs thorough, consistent watering until its roots have established in the surrounding soil. Water deeply enough to moisten the full root area, then check the soil before watering again. The correct frequency will depend on the weather, soil type, plant size, root format and level of exposure, so avoid relying on a fixed daily or weekly schedule.Laurel is evergreen and continues to lose moisture through its leaves throughout the year. This means newly planted Cherry Laurel, Portuguese Laurel, Upright Laurel, Compact Laurel and Sweet Bay can become dry during mild or windy winter weather as well as during summer. Large-leaved Cherry and Upright Laurel can be particularly vulnerable because their foliage creates a substantial surface area from which water is lost.
Watering immediately after planting
Water every Laurel thoroughly immediately after planting, even if the soil already feels damp or rain is forecast. This first watering helps settle loose soil around the roots, removes large air pockets and ensures that the original root system is in close contact with the surrounding ground.Apply the water slowly around the complete root area rather than pouring it against the stem in one place. Continue until moisture has reached the full depth of the roots or root ball. If water begins running across the surface, pause and allow it to soak in before applying more.After watering, check whether the soil has settled and exposed the upper roots. Add a little more soil if necessary, but keep the root collar, where the stem meets the roots, level with the surrounding ground. Avoid building a mound of soil or mulch against the stems.
Watering during the first growing season
The first growing season is the most important establishment period. Newly planted Laurel initially depends on the roots contained within its original pot, bare-root system or root ball. Until new roots grow into the surrounding soil, the plant cannot make full use of moisture elsewhere in the planting strip.Check the soil regularly from spring through autumn, particularly during dry, sunny or windy weather. Push a finger or hand trowel below the surface beside the root system. If the soil at root depth is beginning to feel dry, water slowly and thoroughly. If it is still moist, wait and check again rather than adding more water automatically.Deep watering is generally more beneficial than frequent light sprinkling. A small quantity applied only to the surface encourages shallow rooting and may never reach the lower part of the root ball. Water should penetrate through the main root zone and slightly beyond it, encouraging new roots to grow into the surrounding soil.Keep the planting strip clear of grass and weeds, which compete strongly with young hedging for moisture. A 5-8cm layer of
Hedge Bio Mulch can help reduce evaporation and suppress weeds. Apply mulch over damp soil and leave a clear gap around each stem.
Watering during the second growing season
Continue monitoring the hedge throughout its second growing season. The plants should now have more roots growing into the surrounding soil, but they may still need additional water during prolonged dry weather.Water less frequently than during the initial establishment period where conditions allow, but continue to soak the full root zone when watering is needed. Large plants, exposed sites and free-draining soils may require close attention for longer than smaller plants in sheltered, moisture-retentive ground.Do not assume that a hedge is fully established simply because it has produced new leaves. Strong top growth can increase water demand before the roots have spread far enough to support the plant independently during drought.
Check the original root ball below the surface
One of the most common causes of failure in newly planted pot-grown and root-balled Laurel is a dry original root ball surrounded by apparently moist soil. Water can follow the looser soil around the roots without penetrating a dense or dry root ball.Check moisture within or directly beside the original root system, not only on the surface between the plants. Use a narrow trowel to investigate carefully without causing unnecessary root damage. The soil should feel evenly moist but not saturated or sticky.Pot-grown plants can be especially difficult to rehydrate if the compost was allowed to become very dry before planting. Water the plants thoroughly while they are still in their pots and make sure irrigation reaches the original pot-shaped root ball after planting.With root-balled plants, check both the retained soil ball and the surrounding backfill. The root ball may remain dry while the surrounding soil is wet, or it may remain saturated after the surrounding ground has begun to drain.
Watering Laurel in sandy soil
Sandy and gravelly soils drain quickly and hold relatively little moisture. Laurel planted in these soils normally needs more frequent checks and may require watering more often during warm, dry or windy periods.Improve very free-draining ground across the wider planting strip with suitable organic matter such as
peat-free Hedge Planting Compost. Do not create an isolated pocket of compost because this can discourage roots from spreading into the surrounding soil.Apply water slowly so that it penetrates rather than running away. Mulching is particularly valuable in sandy soil because it reduces evaporation and helps moderate soil temperature.
Watering Laurel in clay soil
Clay soil can hold moisture for much longer, so Laurel planted in heavy ground may need watering less frequently. However, clay can also become compacted and waterlogged, particularly where machinery, foot traffic or poor drainage has damaged the soil structure.Always check below the surface before watering. The top few centimetres may appear dry while the ground around the roots remains wet. Adding more water under these conditions can exclude air from the soil and increase the risk of root damage.If water remains around the roots for prolonged periods, correct the drainage problem rather than reducing watering alone. Relieving compaction across the wider planting area, improving the soil structure or raising the planting line may be necessary on difficult sites.
Watering during hot, dry or windy weather
Hot sunshine, low rainfall and strong wind can increase water loss rapidly. Wind is particularly important because it removes moisture from the leaf surface even when temperatures are not exceptionally high.Check newly planted Laurel more frequently during these conditions and water before the plants become severely wilted. Early morning or evening is usually the most efficient time because evaporation is lower than during the hottest part of the day.Apply water directly to the soil around the roots. Avoid relying on overhead sprinklers, which can wet the foliage while leaving the deeper roots dry. Repeatedly wetting the leaves may also encourage some leaf diseases where air circulation is poor.A temporary watering basin formed around the outside of the root area can help retain water on sloping or very dry ground. Do not create a deep hollow directly around the stem, as this may collect excessive water and bury the root collar.
Winter watering for newly planted evergreen Laurel
Newly planted evergreen hedging can still lose moisture during winter, particularly in mild, dry or windy weather. The leaves continue to transpire while cold soil limits the ability of the roots to replace the lost moisture.Check plants during prolonged dry periods and water on a frost-free day if the soil at root depth is dry. Pay particular attention to hedges planted beside walls, fences, mature trees or existing hedges, where the roots may sit within a rain shadow.Do not water frozen soil or ground that is already saturated. Watering immediately before a severe freeze is also unnecessary where the root zone is adequately moist. Sweet Bay Laurel may need particular attention in exposed positions because cold drying winds can scorch its foliage.
Signs of drought stress
Common signs that a Laurel hedge may not be receiving enough water include:
- Leaves becoming dull, soft, drooping or curled
- Brown leaf tips or dry brown margins
- Premature yellowing and leaf drop
- New shoots wilting during the day and failing to recover overnight
- Dry, crumbly soil within the original pot or root ball
- Limited new growth after the initial establishment period
- Dieback beginning at shoot tips during prolonged dry weather
These symptoms can also have other causes, so check the soil before watering. A wilted plant in dry soil is likely to need water. A wilted plant in wet soil may be suffering from damaged, waterlogged or diseased roots.
Signs of waterlogging or overwatering
Too much water can be as damaging as too little. Laurel roots need oxygen as well as moisture, and continuously saturated soil prevents healthy root growth.Possible signs of waterlogging or excessive watering include:
- Yellow leaves while the surrounding soil remains wet
- Wilting despite damp or saturated ground
- Soft, dark or unpleasant-smelling roots
- Progressive shoot dieback
- Standing water around the planting line
- Algae or moss developing on persistently wet soil
- Repeated decline in the lowest or wettest section of the hedge
Stop automatic watering and investigate the drainage if these symptoms appear. Do not apply additional feed to a waterlogged or root-damaged plant. Fertiliser will not correct poor drainage and may place the already stressed roots under further pressure.
Positioning an irrigation pipe
A correctly installed
hedge irrigation system can provide consistent watering along long hedges, large landscaping projects and rows of substantial plants.Position the irrigation pipe along the planting line so that water is delivered over the active root area of every plant. For a newly planted single row, the pipe should normally run close to the centre of the root balls rather than against the stems or at the outside edge of the planting strip.Where the root balls are especially wide, or where a staggered double row has been planted, two irrigation lines may provide more even coverage than one central pipe. The aim is to wet the complete root zone rather than creating a permanently wet narrow channel.Secure the pipe so it does not move during watering and check that every outlet is working. The end of a long irrigation run may receive less water if pressure is inadequate, while damaged or blocked sections can leave individual plants dry.Irrigation should be placed beneath the mulch but above the soil where practical. This reduces evaporation while allowing the pipe to be inspected, repaired or repositioned. Do not bury it deeply among the roots.Automatic irrigation should still be checked manually. Adjust its use according to rainfall, temperature and soil moisture rather than allowing it to run on the same schedule throughout the year.
Watering large root-balled and instant Laurel hedging
Large root-balled and instant Laurel hedging creates immediate coverage, but the substantial amount of foliage also creates a high water demand. These plants have not yet developed a root system that extends as widely as their tops, so they can dry out quickly after planting.Water the root ball itself as well as the surrounding soil. A light application around the outside may leave the dense central root ball dry. Apply water slowly in several stages where necessary, allowing each application to soak in before adding more.Check several points along an instant hedge rather than inspecting only one unit. Joins between sections, the ends of the hedge and areas close to walls or established trees may dry at different rates.Large plants in exposed positions may also move in the wind, breaking newly developing roots and creating gaps around the root ball through which water can run without soaking in. Check stakes, anchors and ties regularly and firm any soil that has loosened without burying the root collar.Continue close moisture monitoring for at least the first two growing seasons. Larger specimens can take longer to establish than smaller plants and should not be considered self-sufficient simply because they provide an immediate visual screen.