Penstemon, also called beardtongues, are beautiful perennials that bloom all summer long.
Penstemon main facts
Name â Penstemon
Family â Scrophulariaceae (figwort family)
Type â perennial
Height â 26 to 32 inches (0.6 to 0.8 meters)
Exposure â full sun, part sun
Soil â rather rich and well drained
Flowering â May to October
Easy to grow, here are the best practices to care for your Penstemon and extend their blooming.
- Read also:Â Beardtongue, flowers all summer long
Planting and sowing Penstemon
If you purchased your plants in nursery pots, it is best to plant them in the ground in spring, spacing them 12Â inches (30Â cm) apart and adding âflower plantâ soil mix to the garden soil.
- Plant at least ten plants in any given bed to produce a remarkable visual impact.
- Water regularly after planting.
Planting Penstemon in pots
Penstemon thrive particularly in pots or garden boxes.
- Plant in flower plant soil mix.
- Water regularly at the beginning and then, especially in summer, only when the substrate surface is dry.
- Never flood the roots.
Sowing Penstemon
Sowing Penstemon is difficult and efforts arenât always crowned with success.
- Sow in a sheltered place, in a nursery at the end of winter in special seedling soil mix.
- Place seedlings to light at a warm temperature, around 65 to 68°F (18 to 20°C).
- Sprinkle water over lightly to keep the substrate a bit moist.
- Transplant into nursery pots after sprouting when sprouts have formed a few leaves.
- Transplant in the ground in the following spring.
Preparing Penstemon cuttings
To propagate your Penstemon easily, summer cuttings are definitely the best solution. You can even use stems pruned off in spring to prepare cuttings.
- Snip off cuttings from Penstemon stems that arenât bearing flowers.
- Eventually, dip the cuttings in powdered rooting agents (this step isnât necessary, but it helps).
- Plant your Penstemon cuttings in cutting soil mix.
- Keep substrate a little moist, reduce watering in winter.
- Protect cuttings from freezing in winter but keep them in a well-lit place.
- Transplant in the ground in the following spring.
Pruning and caring for Penstemon
Pruning and caring for Penstemon is easy. Apart from the occasional watering during summer, you wonât need to care for them at all.
- To boost flower-bearing, remove wilted flowers regularly (deadheading), since this will stimulate the budding of new blossoms.
- Water Penstemon in case of high temperatures, preferably in the evening.
- Mulching the base of your Penstemon helps keep the soil cool and reduces the need to water.
In winter, no need to remove leaves: they protect Penstemon from the cold. What is best is to cover the plant with a thick layer of dead leaves to keep it from freezing.
Penstemon are hardy to temperatures as low as 23°F (-5°C) and even 5°F (-10°C), depending on the variety.
All there is to know about Penstemon
Native to the vast American plains, Penstemon is a very beautiful perennial that bears large floral scapes with cute bell-shaped flowers at their tip. Often compared to foxglove, they are often mistaken one for the other.
Also called beardtongue, there are over 250Â varieties of Penstemon with as many colors, shapes and sizes.
Dominant Penstemon colors are red, violet and yellow.
Interesting Penstemon varieties
- Penstemon barbatus â cherry-red.
- Penstemon âEvelynâ â pale pink.
- Penstemon ‘Garnet’ â raspberry red.
- Penstemon heterophyllus â lavender blue.
- Penstemon âHidcote Pinkâ â pink
- Penstemon âMidnightâ â purple
- Penstemon âSouvenir dâAdrien RĂ©gnierâ â pink
- Penstemon âSnow stormâ â white
- Penstemon âWhite Bedder’Â â white
Smart tip about Penstemon
You can also cut a couple Penstemon flower stems and place them in a vase, they keep for a long time!
CC BY 2.0: tdlucas5000
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