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How to Help Plants during Flood Events

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With rains and potential flooding, what do you do with your plants? What do you do with your plants after the rain subsides?

If you have any container gardens, move them to either the side of the house that will be most protected from the wind or a covered area. Placing them on eaves of the house will help with excess water. Some plants do not like to get too much water. Any plants in containers that can be temporarily moved inside while it’s raining with strong winds, move inside for safety.

Remove hanging baskets from porches/hooks. Bring any Bougainvillea hanging baskets to a covered area because these plants do not like to get too wet.

Harvest any edibles from your garden that are ripe or close to being ripe. If in an area expecting flood waters to blanket the garden, cut off and discard any immature fruits/vegetables. Anything that is under water for an extended period of time is not likely to survive due to root rot. If there are any edibles that do survive, do not eat any produce that was there before the flood. They may be contaminated from pollutes in neighboring yards.

Once the rain subsides and we have dry conditions for a couple straight days, spray your edible garden with Chlorothalonil or Copper Fungicide as a precaution. This is to prevent fungus that may appear after large amounts of rain.

Landscape plants are hardier and can handle excess water for a small periods of time. After flood waters recede, give them a low dose of any fertilizer to give them a boost. As with an edible garden, after a couple dry days spray the landscape plants with a fungicide, like F-Stop by Fertilome, to keep from the spread of fungus

Annuals/ Perennials in the ground as bedding plants will likely take some damage if they remain under water for a period of time. The root system on these may rot due to excess water.

Lawns will also likely be in need of a fungicide application after flood waters recede. You may notice brown patches and new weeds pop up.  A general fungicide for lawns, and a selective herbicide like MSM Turf is what we recommend using once the lawn is dry.

If you applied any pre-emergent herbicide before the rain, it will likely need to be reapplied once conditions improve. Excess rain conditions wash away the product.

As with any and all of your gardening needs, please reach out to us with questions or concerns. We are here to assist you and your gardening success in all the seasons and all the weather conditions!