Probably because when you pick your own, you don't then transport them to the shed/warehouse, separate and bundle them into bunches of a certain number of stems, pack 'em into boxes and chill, wait for a chilled truck, load them on the truck, drive them however many miles to the supermarket, where they're unloaded and then, after more cold storage, eventually, get displayed for sale. Yours, I imagine, are immediately put in a vase of water...

Fully agree with Bamboo
jimmeg

The ones in the supermarket were picked a couple weeks before you actually see them.

I treated myself to a couple of bunches of red roses from Tesco on the 15th and they are still going strong (and if my OH says he gave them to me on Valentine's Day he's telling porkies)! Best £2.00 spent in ages.

Wow, that was a bargain!

I bought daffodils from there (% to mariecurie) and they are lasting, helps to chop the bottom of the stems ocasionally I think

I buy daffs in Tesco and like them- the only thing I wish is they'd include some leaves, but the growers don't, for obvious reasons... Two weeks for roses though, that's pretty amazing...

We have a wonderful florist locally that we use for special occasions, but I often buy supermarket flowers which last for ages - especially lilies and chrysanthemums.