When is the right time to apply fall fertilizer?
Deciding when to apply fall fertilizer becomes difficult during unseasonably cold and rainy autumn weather, leaving homeowners unsure whether to fertilize immediately or wait until November. This confusion can lead to second-guessing over whether to add starter fertilizer or leave new grass seed applications as they are.
What people tried
Every workaround mentioned in the threads below. We haven’t tested any of them — and nobody here is claiming they worked.
- 1Applying fertilizer once right now while grass is growing and a second time in late October as a winterizer
- 2leaving the lawn as is without adding more fertilizer
- 3splitting the fertilizer application in half and putting down more later in the fall
In their words
Unedited, most upvoted first, each linked to the thread it came from.
“When is the appropriate time to put fall fertilizer down, since it’s getting colder should I do it now or wait until November”source ↗
“Let’s say I “hypothetically” put down Espoma Fall Winterizer with my new grass seed this week (mid September) in New Jersey, but now I am second guessing myself and want to spread some starter fertilizer as well so the new grass gets a shot of Phosphorus.”source ↗
“Should I just leave as is or can I add some starter fertilizer?”source ↗
Where this came up
People with this problem also raised
- 3When can I put weed killer down after overseeding?
- 17Can you plant grass seed late in the season after missing the window?
- 2Will heavy rain wash away grass seed after overseeding?
- 5What order should I do lawn care tasks like aeration and seeding?
- 2How to aerate dry, hard soil in autumn
- 2Did I plant my grass seed too early?