they are tiny so I would say yes it does. I have this one its very pretty.

Thanks Drc. They have been grown in a 30mm plug but are 15cm high

You should pinch out the tops to make them bush out. Have you potted them on?

Yes Spitzhenry should I plant them out later this year or wait till spring

Definitely wait - Penstemons need to be grown on into decent-sized plants before you plant them out, as they're not reliably hardy in a cold winter. 'Garnet' is one of the hardier ones, I find. :-)

Is there any growth on them that would make good cuttings? I take cuttings of all mine at this time of year - they root well in a jar of water.

Thanks Spritzhenry. Tops have already been pinched out so maybe not enough growth yet for cuttings

That's a shame. Never mind - get them through the winter, and you can increase your stock next year. :-))