I ordered the 72 Perennial Plants offer last year. (6 x 12 different plants)
I took advantage of the reduced offer/discount, that they always do as the season goes on, and it proved to be good value.
The plants arrived in good condition, were potted on, and only one set of 6 plants failed, with only 4 surviving.
I then grew them on in large pots outside.
The display last year was magnificent, less so this year, but that was down to me.
I have used these people from time to time, and find their prices can be rather expensive, but they do some good discounts occasionally, so can be worth the £4.95 carriage (or free if the order is over £60.00). The pack quantities are quite large too, so if you only want the odd bit and piece, then this might not appeal.
The packaging comes with all the plant names clearly marked, essential so you know what is what, and usually survive the delivery process. I have never had to complain about damage, so cannot comment on their refund/replacement service.
Their 72 plant offers regularly appear in magazines and newspapers, and it's worth waiting to see how much the prices reduce as the season progresses, or order early and get your plants in good time to get them ready for summer.
All, bar one, of the plants came up again this year, so the quality is good enough to survive winter in pots.
They will post out a free catalogue too, and if you are on their e. Mail list, you often get some good deals sent too on a regular basis.