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Can I enjoy my plants indoors for the cooler months? – Decorative Ponds & Water Gardens Q & A

Can I enjoy my plants indoors for the cooler months?

Can I enjoy my plants indoors for the cooler months? Josh – Speed, KS

With winter on the way, you are probably starting to wonder how to go about protecting your plants through the colder months. Just as each plant is unique in looks and application, different types of plants require different means of protection to survive winter. You will want to properly identify which types of plants are present in your pond and proceed accordingly. If you are willing to go the extra mile and care for your plants indoors you will be able to enjoy them all season long and dodge the expense of re-buying plants to garnish your pond next Spring.

Plants are typically categorized by hardiness which gauges their survivability in specific temperature ranges. Some plants, like Bog Bean are rated from zones 3 to 10 which means they can withstand very cold temperatures but can also thrive in warm weather. Tropical plants like the Antares Lily are hardy only in zones 10 and 11. For help, see our Plant Hardiness Zone Map which breaks down temperature lows in each zone. With this being said you will now understand that some plants may need to be stored earlier and longer than others and may require a little more attention depending on their warmth and light requirements and if you maintaining the entire plant or only storing tubers.

Hardy Lilies and Lotus can be trimmed back to about an inch` away from the top of the planter as they brown. To over winter these plants you simply sink the baskets to a depth in your pond that will not freeze solid, normally at least 12” in water depth. As the temperatures warm back up you can move the basket closer to the surface and let nature take its course. If your lilies aren’t potted, they are more than likely planted into lily pockets that are already 12-18” in depth and simply trimming them back will suffice. Any tropical plant, however, will have to come inside for the winter. These plants can be maintained if placed in a warm and sunny area or under a full spectrum light and the root of the plant is kept submerged.

Submerged Plants that are hardy in colder climates can just be sunk to deeper regions of your pond that will not freeze solid in the winter. If they require warmer temperatures you can bring them in and store them in an aquarium with full spectrum lighting.

Floating Plants like Water Hyacinths and Water Lettuce are sensitive to colder weather and are a little more difficult to over winter. If you choose to bring them in for the winter, they require a warm sunny location or under full spectrum lighting. You will also want to add some liquid fertilizer like Microbe-Lift Bloom & Grow to keep them healthy.

POND TALK: Tell us how you over winter your aquatic plants.

Easily maintain your plants!

How Do I Winterize My Aquatic Plants? – Water Garden Q & A

Picture of Water Lily.

Q: I am working to shut down my water garden for Winter, but I’m unsure of what to do with the aquatic plants? Do I pull them out? If I leave them will they come back next year? – Bill of Wisconsin

Aquatic Plant Maintenance: Every type of aquatic plant needs to be taken care of in a different way. The biggest factor to remember is to make sure that the roots of the aquatic plants do not come into contact with the ice. Anything “hardy” will usually come back each year as long as the roots do not come in contact with ice. Anything “tropic” or “non-hardy” will parish during the Winter times. The following are the steps to take for each type of aquatic plant.

Hardy Water Lilies, Marginals & Submerged Aquatic Plants: Simply trim to around 3 inches above the root system. Water lilies & submerged aquatic plants should already be planted 18″ to 24″ deep making it very unlikely for them to be frozen.

Tropical & Floating Aquatic Plants: Any tropical water lilies, tropical lotsus, or tropical marginals should be treated as annuals. They will not survive the harsh Winter conditions. If you would like to try and keep them, you can place them in pots and bring them indoors, but this can be difficult to keep them alive. As for floating aquatic plants such as: Water hyacinth, lettuce, etc., treat these as annuals as well. Most floating plants are realtively inexpensive to replace each year.

Hardy Lotuses: Trim back the foliage after it has died and turned brown. If leaves are cut while still green, the plant is susceptible to diseases entering through the hollow stems. If stem must be cut while still green, make sure to trim above the waterline, so water does not enter the stem and essentially drown the plant. In colder climates, lotus tubers must not be allowed to freeze in the winter, and containers should be moved to a cool but frost-free area, such as the bottom of a pond that is deep enough to keep the tubers from freezing.

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