When my order reaches £10 I add another plant for £2.99 say so that once the discount is deducted it is just over £10 giving free postage. My order is usually highlighted "offshore postcode send by Royal Mail" so don't know about delivery in the UK. Always arrive in good condition and within a few days of ordering.
Sometimes you're better off with smaller plants (although others may beg to differ). They may not give you the instant impact, but at this time of year they may well settle in better. As long as they had good root systems, you shouldn't have a problem. Which variety of penstemon did you get, if you don't mind me asking. Was it one of the narrow leaves varieties?
@Orchidia, l hadn't heard of "Polaris Magenta" so looked it up. It seems to be one of the wider leaved penstemon varieties so may be more tender than the slimmer leaved ones. If it gets big enough and you have the room, it might be worth taking cuttings (and also from Alice, but l think she might be a bit tougher). If you've got a coldframe and can overwinter them (or even the shelter of a house wall), you might end up with even better value for money!
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