try parcelg2go or Hermes>www.myHermes.~co.uk www.parcel2go~Arlene

Think Crocus online will do this for you.

~ if you want to buy it and have it delivered y the seller, try Thompson and Morgan,(silk Hellebore) Marks and Spencer,Next ~ Tesco etc depending on whether you want a Hellebore or a Rose?~ Ashwoods and Farmyard nurseries grow beautiful Hellebore plants but would not send them in an arrangement.
I take it you want it delivered in the UK?
FLoraselect are selling 4 1.5 Litres pots for £25 and will deliver but check out www.flowercard.com for an arrangement in a card!