They should be trimmed in early spring when there is no possibility of frost. Prune beardtongue back to any desired height. Pruning to a foot or a taller will allow your beardtongue to experience some outward growth each season.
How do you cut back a Beardtongue?
It also can encourage a second set of blossoms later in the growing season.
- Remove spent blooms in the spring with a pair of garden clippers. Clip each stem back to a leaf node or side stem. ...
- Prune penstemon vigorously in winter. ...
- Cut back damaged or dead stems or foliage any time during the year to keep the plant tidy.
How do you prepare a Beardtongue for winter?
Preparing beardtongue cuttings
- Snip cuttings off from stems that aren't bearing flowers.
- If available, dip the cuttings in powdered rooting agents.
- Plant the cutting in special cutting soil mix.
- Keep substrate a little moist, reduce watering in winter.
