Weed and feed products work by preventing new growth, effectively stopping weed seeds from sprouting and newly sprouted wheat from flourishing. However, the herbicides used are insufficient to target weeds only; grass grains and any new grass growth are the same.
If you must sow grass seed after applying weed and feed, wait for at least four to six weeks before doing so to ensure the herbicide won’t prevent the seeds from sprouting. Prepare seedbeds with the help of a rake which is one of the important garden tools that every gardener should have. It helps the seeds to have proper contact with the ground and prevents any bare patches.
It can take up to four weeks for the herbicide effective to fade, so sowing grass soon after applying weed and feed is likely futile because new grass won’t be able to grow.
In order to activate, most weed and feed products are granular and should be applied to moist grass. Mow 2 – 4 days in advance and use the weed and feed products for best results, without additional rain for at least 48 hours. After application, do not mow the treated grass for at least 7 days to allow the herbicide time to work.
Ideally, you should plant seeds well enough before frost in the autumn so that the new grass will grow for several weeks before sleep. You can also sow grass seed in the early spring, though if you do so you should hold off on applying weaving feet for at least four to eight weeks to ensure it doesn’t damage the young grass.
Feeding in autumn helps encourage strong root growth, so your lawn will recover quickly from a harsh winter and put on lush green growth in spring. Autumn feeding is actually the most important feed and integral part of lawn care!
The reason some lawn feeds are better than others, is because they can release nitrogen and feed over several weeks rather than in one rush soon after application.
To summarise, steps to take for lawn feeding include:
Spring and summer lawn feeding
Whichever product you are using, always carefully read the label before use and apply according to the instructions.
There a few types of lawn feed, so you may be a little confused about what to look out for when buying online.
This photograph on the right shows the difference feeding your lawn can make. On the left section the lawn has been fed with a granular lawn food, on the right section nothing extra has been applied. As you can see, the fed section of lawn is much greener and healthier looking.
Your lawn needs another type of feed come the autumn, which will keep the grass growing at a slow rate and not so lush, but still green. Also it prepares your lawn for the winter, by building up the roots and health of the grass to withstand the cold.