No, there is no rose called mum in any major rose registry. The American Rose Society tracks thousands of named roses. None of them carry the name "Mum" as an official title. Small local breeders may use casual names that never reach the big lists, but no mainstream rose goes by mum.
I get why this question pops up, though. When I first started growing flowers, all the names blurred together for me. Roses have over 30,000 named types. Mums have over 20,000. With that many names in play, mix-ups happen. A grower at your local farmer's market might slap a pet name on a bloom that sounds like it belongs to a different flower.
The rose chrysanthemum difference starts at the root of how plants are grouped. Roses sit in the Rosaceae family with apples, strawberries, and cherries. Mums belong to the Asteraceae family with daisies and sunflowers. These two families share no close link at all. Your roses and mums are about as related as a cat and a fish.
You can spot a mum flower vs rose fast once you know what to look for. Rose petals grow from a center cone and spiral out in layers. Mum petals spread from a flat or domed disc, much like a daisy. Roses have thorny, woody stems. Mums grow soft green stems that die back to the ground each winter. Rose leaves are glossy and split into leaflets. Mum leaves have deep lobes and a fuzzy feel with a strong herbal smell when you crush them.
Some double-petaled mum types can trick your eye at first glance. Tight incurved mums pack their petals so dense that the bloom looks round like a rose. But pick one up and give it a sniff. Mums have a sharp, earthy scent that smells nothing like a rose. That smell test will settle any doubt you have in seconds.
If you want to check any flower name, two tools will give you clear answers. The American Rose Society has a database you can search by name on their website. The National Chrysanthemum Society has 13 form classes for mums. Both groups update their records each year. A quick search tells you if a name is real or made up.
Here is the bottom line for you. Roses and mums are two very different plants from two separate families. No real rose goes by the name mum. If someone sells you a "mum rose," they mixed up their flowers or used a nickname. Check the tag, check the registry, and you will know what you have in your hands.
Read the full article: Mum Flower: Types, Care, and Seasonal Tips
