Beltrami County Master Gardeners
Using Native Plants for Your Backyard Pond
Jesica Conrad
Beltrami County Master Gardener

There is a lot to consider in having a pond. There are location, 
size, waterfalls, water fountains, landscaping, liability, fish, care 
and maintenance, not to mention plants, native or not.  Tune into the 
right thing to do with native plants. Ask your local greenhouse/
nursery to stock Minnesota native plants. One may obtain a permit 
from the Department of Natural Resources (DNR) to harvest native 
aquatic plants and place them in your own water pond.  I know it 
seems unnecessary; however, my contact at the DNR wants to be sure 
folks are not digging up and selling. Protection of our natural 
resources is very important.
This website <http://www.seagrant.umn.edu/downloads/x103.pdf
provides information about native aquatic plants for your backyard 
pond and those that are invasive and should never be in your pond.  
Aquatic plants are regulated by the Minnesota Department of Natural 
Resources. Some cautionary instructions are:
1. Never transplant nonnative plants into lakes, streams, wetlands or 
storm water ponds.
2. Check your plant orders for unwanted, and potentially invasive, 
hitchhikers
(seeds, plant fragments, snails, insects, or fish).
3. Be aware of the regulations regarding possession, transport or 
sale of nonnative plants and animals.
4. Learn how invasive plants spread - by seed, rhizome, or even tiny 
plant fragments.
5. Recognize which plants and fish are potentially invasive in our 
climate zone.
6. Properly compost or dispose of unwanted plants or fish.
Three popular and easily accessible native pond plants include the 
following:
1. Marsh Marigold (Caltha palustris). a member of the Buttercup 
(Ranunculaceae) family.  lives in swamps, stream edges and wet 
ditches. It flowers from April to June and is a native perennial 
plant. I love Marsh Marigolds as I perceive them to be a happy plant 
blooming early when we are all looking for a sign of spring.
2. Blue Flag (Iris Virginica) is a perennial plant found in shallow 
water along shorelines and in wet areas. Stems grow in clusters from 
the base, usually single or double-branched, and can be from less 
than a foot tall to over 3 feet. Leaves are sword-like or blade-like. 
Flowers are on an elongated stem that usually rises above the leaves. 
Six-petaled iris-like flowers can be bluish-purple to violet in blue 
flag to white, yellow, or copper-colored in other iris species. 
Flowers are fragrant. Irises have shallow roots and spread from the 
roots.
3. What pond would be complete without a water lily? The white water 
lily (Nymphaeca adorata) is native to Minnesota according to the DNR 
website mentioned. Growing rooted in mucky or silty bottoms up to 5 
feet deep, it provides excellent habitat for largemouth bass and 
sunfish. Flowering in morning,  it usually closes by afternoon. The 
white flower has rows of petals surrounding a yellow center.  The 
lily's thick tubers make hand-pulling or cutting difficult. Submerged 
portions of all aquatic plants provide habitats for many micro and 
macro invertebrates. These invertebrates in turn are used as food by 
fish and other wildlife species.
The following are resources to get you started in planning your 
backyard pond.
http://www.seagrant.umn.edu/downloads/x103.pdf
http://www.sustland.umn.edu/related/water4.html
http://files.dnr.state.mn.us/assistance/backyard/gardens/native_plant/
suppliers_central.pdf
  I certainly am enjoying mine.