Heatwave Alert: Protecting Your Trees After the Record-Breaking Bank Holiday

At Charrington Tree Services, we hope you enjoyed the sun over the recent May Bank Holiday. However, while the record-breaking 34.8°C temperatures were a treat for many, they have placed a significant strain on young and newly planted trees.

According to the Met Office, this weekend saw the UK’s hottest May day on record. This sudden "flash heat" combined with "tropical nights" (where temperatures remained above 20°C) means that soil moisture has evaporated at an alarming rate. For trees planted within the last three years, the risk of drought stress is currently at a seasonal high.

Here is how domestic and commercial clients can protect their landscape assets in the wake of this extreme weather.

1. Don’t Wait for Rain: The Post-Bank Holiday Recovery

The RHS warns that even if we see a light shower this week, it won't be enough to soak into the deep root zones of young trees.

• The Immediate Action: If you haven’t watered since the Bank Holiday, do so now.

• The Technique: Aim for a long, slow, deep soak at the base of the tree rather than a quick spray over the leaves or the top of the grass.

• The Goal: A light sprinkle only wets the surface, which evaporates quickly; a deep soak ensures the water penetrates the soil to reach the entire root ball, encouraging the roots to grow deep into the ground.

• The Volume: A young tree typically needs at least 20 litres (roughly two large watering cans) twice a week during these dry spells.

  
  

2. Mulch is Your Best Defence

Kew Gardens and the Arboricultural Association advocate for mulching as the single most effective way to "lock in" moisture.

• Insulate the Roots: A 5–10cm layer of wood chip acts like a thermos, keeping the soil cool and moist even when the sun is beating down on the Lincolnshire limestone.

• The Gap: Remember to keep the mulch clear of the trunk itself to prevent bark rot.

3. Recognising "Heat Shock"

Young trees don't always show stress immediately; it can take a few days for the damage to become visible. Look for:

• "Crispy" Edges: Brown, brittle margins on leaves.

• Flagging: Shoots that look limp or droopy despite the sun going down (leaves can wilt in the hottest part of the day, usually around 2pm, a healthy tree that is drawing enough water will have rehydrated its leaves by sundown).

• Yellowing: A sign that the tree is shutting down its food production to save water.

  
  

Note for Commercial Clients: Dead or dying trees on a new development aren't just an eyesore; they represent a significant loss of capital investment and can impact planning compliance. Preventive watering now is far cheaper than replacement later.

4. Expert Care from Your Local Specialists

Out surrounding soil conditions (limestone brash to heavy clay) mean water can either drain too quickly or sit on the surface without penetrating. As your local tree surgeons, we understand the local geography and how it affects tree health.

Our Services Include:

• Emergency Drought Assessments: We can evaluate if your trees have suffered permanent damage.

• Professional Mulching & Soil Conditioning: Giving your trees the best chance for the rest of the summer.

• Planning & Species Selection: Advising on drought-tolerant species for future plantings in our changing climate.

Stay Ahead of the Heat The record temperatures of this Bank Holiday are a reminder that our climate is changing. Whether you have a single sapling in your garden or a whole estate to manage, Charrington Tree Services is here to help your canopy thrive.

Contact us today for a consultation or to discuss a maintenance plan for your trees.

Call on 07921 451 551 or email me at: ben@charringtontrees.co.uk