Start with the root ball
A newly planted tree or shrub has a limited root system. The original root ball can dry at a different rate from the surrounding soil. Move a little mulch aside and check moisture in both places; a wet-looking bed does not prove that the roots have enough water.
The aim is moist soil with air available to the roots. Persistently saturated soil is a reason to pause and check drainage, not to add more water.
Water slowly and check the result
Apply water over the root zone at a rate the soil can absorb. Pause if it runs across the surface. Check afterward that moisture reached the root ball and nearby soil. Briefly spraying the foliage or wetting the mulch is not the same as watering the roots.
The amount and frequency depend on plant size, soil, rainfall, heat and wind. New planting usually needs more attention than established trees. A lawn sprinkler may not deliver enough water to each root ball, so check those plants separately.
Make the routine fit the location
Check more often during drying weather. After rain, inspect the soil rather than assuming the storm soaked the roots. In heavier soil or a low spot, look for water that lingers.
Keep a simple note of watering and rain during the first weeks. It gives you a useful starting point if a plant begins to struggle and helps you adjust care as conditions change.
Keep mulch level and trunks clear
Mulch helps moderate soil moisture and reduces competition from weeds. Maintain an even layer around the planting, with a clear gap at trunks and stems. Leave the root flare—the widening where the trunk meets the roots—exposed.
Avoid piling new mulch on top of an already deep layer. Check the existing depth before topping up. As roots spread, the area you water needs to extend beyond the original root ball.
Continue beyond the first few weeks
Root establishment takes time and varies with plant size and conditions. A few healthy-looking weeks do not mean a tree is fully established. Continue moisture checks through dry periods and into fall while the ground remains unfrozen.
Keep the plant names and installation date with your care notes. Different species may need different pruning or seasonal attention; confirm the plant before planning those tasks.
When to get in touch
If a plant is declining, send a photo of the entire plant, a close-up of the affected growth and a view of the base. Include when it was planted, recent watering and whether the soil feels dry, moist or saturated.
Ask before making a major change such as heavy pruning, adding products or repeatedly increasing irrigation. Those details help us arrange the right follow-up for your property.
Advice for your property
Still have a question?
Tell us what you are noticing and include photos when helpful. For existing work, include the service date so we can understand the situation.
Get in touchSources & further reading
University extension resources behind this guide. Links open in a new tab.