Rain can saturate soil, especially potted plants (it's all a form of overwatering). When the soil in a pot becomes waterlogged, it can cause serious issues for the plant and its roots. The excess moisture prevents oxygen from reaching the roots of the plant which causes them to become weak and unable to take up nutrients or water properly. This leads to root rot and other diseases that will eventually kill your beloved plant if not addressed quickly.
When rainwater accumulates in a pot for an extended period of time, it prevents oxygen from reaching the roots which leads them to become deprived and unable to absorb nutrients properly. This lack of oxygen also encourages bacterial growth that further damages delicate roots and causes fungal diseases such as Pythium or Fusarium wilt that will eventually kill off affected parts or even entire plants over time if not addressed quickly enough. Another problem that can arise is Crown Rot which isn’t a noble disease. The plant actually rots where the trunk and soil meet.
One way you can combat this problem is by making sure there are drainage holes at the bottom of each planter so excess moisture has somewhere else go instead accumulating within soil particles like clay soils tend do when wetted up with rainfall amounts exceeding 1 inch per hour rate (for example). If you don’t have any drainage holes already present on pots then drill some holes in the container – even on the side if you can’t get the bottom; just remember not all potted materials may hold up against these tools so always test out first before drilling away! Additionally adding mulch around base helps reduce saturation levels while still allowing air flow through soil surface area - both beneficial aspects needed for healthy root systems development long-term without damaging effects caused by standing waters presence near underground portions where most critical nutrient absorption takes place during photosynthesis process itself!
Finally after making sure proper draining methods are employed it’s good practice to regularly check pots throughout season(s) especially right after heavy rains occur just in case unexpected flooding happens due excessive amounts falling down within short amount times (i..e thunderstorm or just overwatering etc). In worst case scenarios where damage is already done due saturated conditions existing prior preventive measures being taken then removal & replanting into fresh new container along with addition fungicides might help save dying plant but only works well depending severity situation faced...so “better safe than sorry approach” should always be adopted when dealing potential risks associated high levels waterlogging issues!
Let’s talk about in this and any other gardening concerns you might have by calling NICK. Really, call 1-800-405-NICK(6425).