Japanese maples are renowned for their spectacular appearance during the upcoming colder months, but as summer draws to a close, it can prove challenging to maintain their well-being without proper watering techniques. These elegant trees originate from woodland areas where summers are milder and humidity levels are higher, which means that even Britain’s sunshine can prove too intense for their fragile foliage.
It is crucial to maintain adequate hydration for Japanese maples at this time to prevent leaf scorch, which can stress the plant, impede development, and damage foliage. Luckily, the horticultural specialists at Plant Addicts have revealed that maintaining proper moisture levels for Japanese maples during late summer is straightforward, provided you steer clear of afternoon watering sessions.
They explained: “The best time of the day to water Japanese maples is during the morning, which allows plenty of time for the roots to soak up the water.
“If watering during the evening, try not to get the leaves wet, as the slower evaporation time at evening and night can facilitate the spread of diseases.”
Most gardeners water their plots in the afternoon, which coincides with peak sunshine hours. This accelerates evaporation rates, resulting in reduced moisture penetration into the earth.
Consequently, insufficient water reaches the Japanese maple’s root system, leaving the plant dehydrated and increasing the likelihood of premature leaf drop.
Water droplets may also become heated and function like miniature lenses, scorching the foliage and causing considerable distress to the tree. Watering Japanese maples in the evening is possible, but with no evaporation, the leaves remain wet overnight, potentially encouraging fungal growth and pests such as slugs.
The optimal time to water these trees is in the morning, before 9am to 10am, when the soil is cool, allowing the water to soak in.
This also allows the leaves ample time to dry before the day’s peak heat, helping them stay vibrant and grow larger before autumn sets in.
During summer, Japanese maples require watering at least twice a week, but if they’re in a container, they’ll need watering four times a week due to increased risk of drying out.
Dedicating 10 minutes each morning to water your Japanese maples can ensure their survival through harsh summer conditions and guarantee a stunning display come late September when autumn begins.
