A backyard pond brings movement and character to the landscape, but Michigan winters demand a different maintenance routine. Leaves accumulate, water temperatures fall and ice may form for weeks at a time.
The best winter plan depends on whether your feature is a shallow decorative basin, a pond with fish, or a larger ecosystem pond. The goal is to protect equipment, maintain suitable conditions for aquatic life and avoid preventable damage.
Remove leaves before they settle
Use a skimmer net to remove floating leaves and fallen branches. Decomposing organic material can consume oxygen and contribute to poor water quality beneath ice.
A properly installed seasonal pond net can reduce leaf buildup, but it should be kept taut and checked so wildlife does not become trapped.
Trim plants without stripping the pond
Remove dead or collapsing plant growth as appropriate for the species. Some hardy marginal plants can remain in place, while tropical plants may need indoor storage.
Avoid aggressively disturbing bottom sediment late in the season, particularly in established fish ponds.
Check pumps, filters and plumbing
Read the manufacturer’s cold-weather instructions for your pump, filter, UV clarifier and waterfall components. Shallow or exposed plumbing may freeze and crack.
Some systems are designed to run through winter; others should be shut down, drained and stored. Never assume that all pumps should stay running or all should be removed.
Adjust fish care as water cools
If your pond contains koi or goldfish, monitor water temperature rather than using the calendar alone. Fish metabolism slows as water cools, and feeding practices should change according to species-specific guidance.
A fish pond may need an appropriately sized aerator or de-icer to support gas exchange. Equipment placement matters: avoid disturbing warmer deep water unnecessarily. Seek advice from a qualified pond professional for fish health concerns.
Plan for ice safely
Never strike pond ice with a hammer; vibrations can harm fish and damage pond liners or equipment. Do not walk onto pond ice, which may be dangerously thin even when it looks solid.
Use equipment specifically designed for the pond and follow its safety instructions. Electrical equipment near water should be correctly installed and GFCI-protected as required.
Inspect edges, liners and overflow paths
Look for loose stones, exposed liner, erosion and water that could flow toward the house or walkway. Keep overflow routes clear where appropriate.
Winter maintenance is also an opportunity to note improvements for spring, such as better access, lighting or a redesigned waterfall.
Frequently Asked Questions
Should I turn off my pond waterfall in winter?
It depends on the system, water depth, climate exposure and manufacturer guidance. Some features can operate year-round; others risk ice dams and water loss.
Can pond fish survive under ice?
Some cold-hardy fish can overwinter in suitable ponds, but depth, oxygen, water quality and species matter. A qualified pond specialist can assess your setup.
Should I break ice to make a hole?
Avoid striking ice. Use appropriate pond de-icing or aeration equipment when needed.
Plan Your Next Step With Shelton Lawn Sprinkler Company
Prepare your water feature according to its design, not a one-size-fits-all checklist. If you are unsure about pump winterization, plumbing or fish-pond conditions, arrange a professional review before sustained freezing weather.
Explore our ponds and water features, landscaping services.
Call 313-702-8014 to discuss your property and request an estimate. Shelton Lawn Sprinkler Company is family-owned, serving Metro Detroit since 1961.