Growing seeds.
Good afternoon everyone. I am looking for some tips on growing Penstemon and Delphinium from seed. Tried both last year and despite following the instructions on the packet, I failed miserably. Would also like some suggestions for autumn/winter flowering plants. Many thanks, in anticipation.
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I keep them in the GH all the first winter, them put outside for summer, them plant out the following Spring. By then they are big plants and can cope with slug damage. Not that penstemon get eaten by slugs but Delphs do!
Maybe it’s trial and error, we all have to start somewhere, and if you are following instructions, you’ll get there in the end. 🙂
I usually do cuttings from penstemons now, they root very easily in a glass of water if you do them in the summer.