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springfield MO area (Zone 6a)
I was one of the first 300 contributors to the plant database! Plant Identifier
Oct 24, 2017 8:41 AM CST
I planted some mums 2 years ago and they were covered w 2 in blooms when I set them out as small starters. Now they are blooming heavily, but the diameter of the blooms is only about half that or less. I am wondering if there is anything I can do to bring them back to the larger blooms. It seems like they had larger blooms last fall, this is the third fall they have been here. Is it normal for mums to do this? The size of the plant overall seems fine, they have grown alot so I assume they are happy in their location. (also full sun)
Name: Paula
NYC suburbs (Zone 6b)
Oct 25, 2017 6:49 PM CST
Fertilize! You only want to fertilize when they are actively growing, so its something you will do next year.
Something like miracle grow will really help. If you want to get into real nitty gritty: primary macro nutrients are nitrogen, phosphorus and potassium, NPK ( in that order in the #s on your fertilizer bags). And yes, K is potassium, as per the periodic table.

Higher Nitrogen early in the season to get good dense leafy plants that can photosynthesize like crazy so they're ready to really get in high gear when its bloom time, higher phosphate later in the season (~late july) will encourage more and bigger blooms.
Name: Philip Becker
Fresno California (Zone 8a)
Oct 28, 2017 11:17 AM CST
Welcome! I agree
I also have a few ideals to compleament.
My dad grew great ones ! He would cut them off, to a few inches high, after they finished blooming. They'd grow back like gang busters !😮!!!
Also, fertilize with Empon salt in spring and fall.
They would bloom so much, that you couldn't see the forest for the trees. 🙊🙉🙈👍
Anything i say, could be misrepresented, or wrong.
springfield MO area (Zone 6a)
I was one of the first 300 contributors to the plant database! Plant Identifier
Nov 8, 2017 9:29 AM CST
Thanks guys for the tips, yes the soil there is decent but not great- probably needs fertilizer. The plants get really large and look healthy so I didn't think that was the case but maybe that is why the flower size is so small. In the mean time I decided to toss them anyway in favor of coneflowers which I think will give me a longer blooming season with similar colors.

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