On Dec 3, 4:58*am, trand wrote:
Hi All, we brought a mum from a local store 2yrs ago, in a pot, it
flowered then looked like it died, back in the spring the other half
planted it in the garden, it has grown to over 6ft tall, and flowered
yellow flowers about 4in across, it is a chrysamthemum, i have checked
the leaves with others that we have , but I have never seen one grow so
tall as this , any ideas as to what type it is? going to try and get a
photo on here.. thanks ...

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trand

Ones purchased from nurseries and garden centers have typically been
treated by the growers with growth retardants to keep them small and
compact. Once established in the ground or allowed to outgrow these
treatments, mums can get quite tall. They can be cut or pinched back
periodically during the growing season to keep them shorter, with the
last cutting around mid-July. This also helps to increase the number
of flowering stems or bud formation. Most garden mums are
hybrids......and there are literally hundreds of different cultivars
with various colors, heights, bloom types and times.