Fertilizers are like the vitamins of the plant world: they help supplement nutrients that allow plants to vibrantly grow and flourish. Basically, fertilizers are minerals that break down and are absorbed by the roots of the plants to give them the chemical elements they need to grow well, particularly nitrogen and potassium. While there is merit to these concern and some situations where this can be the case, not all fertilizer is bad.
Whether you prefer using organic or chemical fertilizers in your yard, there are healthy and environmentally-friendly products out there if you do a little research and know what to look for. Because heavy rain waters lead to run-off and will more or less wash out your fertilizer before it has a chance to break down and be absorbed. Not only will the fertilizer be ineffective, but you will have wasted the money you put into it as well.
Like we said before, moisture is important for the fertilization process, so using chemical fertilizer on overly dry grass is likely to burn out your grass rather than make it grow and flourish.
Fertilizing after a torrential downpour increases the potency of the fertilizer on the lawn. Most of the time, heavy rainfall could wash away the fertilizer out of the lawn. This cause mini water pollution around the area. However, fertilizing after the rain has no effect on the environment in terms of pollution of water bodies. This method ensures the fertilizer sticks to where it has been designated. The downside of this post-rainfall fertilizing is that it hinders the gardener from leveraging or utilizing the natural means of fertilizing lawns.
This can cause the fertilizer to be sheer active on the lawn through the inclusion of other basic organic nutrients. By natural means, I mean the inclusion of nitrogen into the lawn through rainfall. Nitrogen is one of the fundamental nutrients needed by every lawn to survive and flourish.
It can be added to the lawn via a heavy rainfall. Beyond this natural advantage, it is almost impossible to thoroughly fertilize your lawn and incorporate the entire land area in the process. You are bound to skip out some areas unintentionally if you are just sprinkling after the rain. Should I re-apply my fertilizer? The answer not very cut and dry, but here is the bottom line: The vast majority of the time, rain after a fertilizer application is not a problem at all.
In fact, it is usually a good thing. Water helps "activate" your fertilizer. It helps move the granules deep into the thatch where it starts to break down so that it can be soaked into the root system. Because nitrogen is the key ingredient that lawns take from fertilizers, this can form nitrate, which can severely impact water quality as well as plants and animals living around these bodies of water.
For gardeners who were hoping to use the heavy rainfall to water in their fertilizer, there are other solutions that will benefit the lawn without putting the environment at risk. One is the catch-can test, which tells you how long you'll need to turn on your irrigation to effectively water-in fertilizer.
Take several empty tuna cans and place them around the lawn. This much water is enough for the lawn to absorb the nutrients at root-level, which is ideal. Any less wouldn't be sufficient, and any more can drown the lawn altogether. She has worked with many real estate agents and companies, doing research and interviews to help create valuable content for both homeowners and agents.
Hana has written home advice articles, gardening articles, and real estate articles for websites like Apartment Therapy, Lab Coat Agents, and Next Stop Magazine.
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