Suc­cess with pen­ste­mons

Garden Answers (UK) - - Celebrate -

Some pen­ste­mons tend to be short-lived. Just like their freeflow­er­ing ver­bas­cum, snap­dragon and fox­glove cousins, they of­ten flower them­selves to death. Give them a bright, sunny po­si­tion.

This en­cour­ages bet­ter flow­er­ing. Dead­head. This keeps flow­ers com­ing rather than set­ting seed. Don’t cut them back in au­tumn.

Wait un­til April and then cut back hard once you see new growth. They’re eas­ily raised from cut­tings taken be­tween June and Au­gust. Look for new side shoots and trim be­low the leaf joint and pinch out any flower buds. Sub­merge two-thirds of

the cut­ting into trays of damp, coarse hor­ti­cul­tural sand, or use a 50:50 mix of com­post and sand.

Red pen­ste­mons with yel­low ver­bas­cum and pur­ple salvia

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