Yes, weeping willows need a lot of water. Weeping willow water needs rank near the top of any common yard tree. These are thirsty, moisture-loving trees that drink deep. Plan to give yours far more water than you would a normal shade tree.
The leaves on my own willow in the damp back corner went droopy and dull during a dry July stretch. The whole crown looked tired and faded. It hung there like it had given up on summer. I tried a slow hose at the base for a full hour that evening. Three days later I found the foliage stood back up and turned a fresh green again.
That fast bounce-back tells you what you need to know about watering weeping willow trees. Your willow leans on steady moisture the way other plants lean on the sun. When the ground dries out, your tree shows the stress fast. Give your willow a deep soak and you get it back, often within days. You will see the leaves lift before you see anything else change.
Why so thirsty? Willows grow wild along riverbanks and wet ground, so water is what your tree is built for. A young willow also grows fast. You can watch yours put on several feet of height in a single year. That kind of rapid growth burns through huge amounts of water. The roots pull moisture up by the gallon to build new wood and new leaves each season.
This is why a moisture loving tree like the willow does best near ponds, lakes, and slow streams. In those spots the roots never run dry, so your willow can drink as much as you let it. You can copy that setup at home by picking a low, damp corner of your yard where water tends to sit after rain. The closer you get your willow to those natural wet conditions, the happier your tree will be.
To keep yours healthy, aim for soil that stays consistently moist rather than soggy or bone dry. The first few years matter most. A young tree has not spread its roots wide yet, so it cannot find water on its own. Water it deeply once or twice a week while it settles in. Bump that up during summer heat, when the sun and wind pull moisture from the ground fast.
A grown willow handles a short dry spell better than a young one. Do not take that drought tolerance as a sign your willow likes dry ground, though. Given the choice, your tree picks wet feet every single time. You get the lush, full crown you want only when you keep the roots fed with water.
Here is the catch that trips up a lot of folks. That same heavy thirst sends your willow's roots out hunting for water. The roots will follow any damp trail you have nearby. A leaky water line or sewer pipe acts like a magnet, and the roots can wedge in and crack the pipe open. The water demand that makes your tree so lush is the very reason these roots become a pipe risk.
So match the spot to the tree. Plant your willow near a natural water source. A pond edge works well. A low wet corner works too. Keep it well away from buried pipes, septic lines, and your house. Give it the steady moisture it craves in the right place, and your weeping willow pays you back with fast, graceful growth for years to come.
Read the full article: Weeping Willow Tree: A Complete Guide
