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Penstemons
I have several penstemons of various colours and, although they have produced large healthy plants, they just aren't flowering. I planted them the year before last as small plug plants and they've grown well but all I've had this year is the odd measly flower spike. I've grown penstemons in the past and had masses of bloom so it isn't the soil. Can anyone help please?
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If they didn't have a big root system when they went in Lin, they will have grown good root systems this year. I chop mine by half every spring, they get nice and bushy and flower really well. They do prefer well drained soil and full sun so is their position and soil right? Sometimes plants just take time to establish so I wouldn't give up hope for next year.