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Xela's Garden

Penstemon 'Garnet' [V]

Genus: Penstemon.

Species: Penstemon.

Soil: well drained

Position: full sun ( most ?)
west / south

Flowering: July - Oct

Height:

Poisonous: no

Photos of this plant

  • Penstemonvistabielleftfrontpath13.06.08
  • Penstamongarnetvistabilefrontbirchbed08.06.13

Reminders for this plant

Due almost 16 years ago:

Dead head

Remove the faded blooms regularly to prolong flowering.

Take cuttings

Take cuttings from non-flowering stem tips in late summer and over winter for planting out the following year.

Take cuttings

Plant cuttings in cold frame

Due over 15 years ago:

Mulch

Cut back and compost the spent flower stems in autumn and apply a dry mulch around the crown of the plant to protect against frost damage.

Mulch

Cut back and compost the spent flower stems in autumn and apply a dry mulch around the crown of the plant to protect against frost damage.

Due about 15 years ago:

Prune

Penstemons can become woody and leggy if they are not pruned annually. So, to keep plants neat and compact, give them a trim once the hard, winter weather is over (usually in late April or early May). This timing ensures that the old stems are still there to shelter the new shoots from any damaging late frosts.

Step 1 Examine plants individually to see whether the new shoots come from the base or are just appearing along the stems.

Step 2 Cut out all the old stems close to the base

Step 3 Where shoots are growing from the bottom, cut out all the old stems close to the base. Penstemon with few or no shoots growing from ground level should only have their stems shortened, making the cuts just above the lowest set of healthy leaves.

Once a plant has been pruned, remove weeds and other encroaching plants. Apply a general fertiliser, such as Growmore, to the soil to encourage strong growth

Due almost 15 years ago:

Dead head

Remove the faded blooms regularly to prolong flowering.

Take cuttings

Take cuttings from non-flowering stem tips in late summer and over winter for planting out the following year.

Due about 14 years ago:

Prune, weed & feed

Penstemons can become woody and leggy if they are not pruned annually. So, to keep plants neat and compact, give them a trim once the hard, winter weather is over (usually in late April or early May). This timing ensures that the old stems are still there to shelter the new shoots from any damaging late frosts.

Step 1 Examine plants individually to see whether the new shoots come from the base or are just appearing along the stems.

Step 2 Cut out all the old stems close to the base

Step 3 Where shoots are growing from the bottom, cut out all the old stems close to the base. Penstemon with few or no shoots growing from ground level should only have their stems shortened, making the cuts just above the lowest set of healthy leaves.

Once a plant has been pruned, remove weeds and other encroaching plants. Apply a general fertiliser, such as Growmore, to the soil to encourage strong growth

Due over 13 years ago:

Mulch

Cut back and compost the spent flower stems in autumn and apply a dry mulch around the crown of the plant to protect against frost damage.

Due about 13 years ago:

Fertilise

Once a plant has been pruned, remove weeds and other encroaching plants. Apply a general fertiliser, such as Growmore, to the soil to encourage strong growth

Prune

Penstemons can become woody and leggy if they are not pruned annually. So, to keep plants neat and compact, give them a trim once the hard, winter weather is over (usually in late April or early May). This timing ensures that the old stems are still there to shelter the new shoots from any damaging late frosts.

1 Examine plants individually to see whether the new shoots come from the base or are just appearing along the stems.
2 Where shoots are growing from the bottom, cut out all the old stems close to the base. Penstemon with few or no shoots growing from ground level should only have their stems shortened, making the cuts just above the lowest set of healthy leaves.

Once a plant has been pruned, remove weeds and other encroaching plants. Apply a general fertiliser, such as Growmore, to the soil to encourage strong growth

Due almost 13 years ago:

Take cuttings

Take cuttings from non-flowering stem tips in late summer and over winter in cold frame for planting out the following year.

Dead head

Remove the faded blooms regularly to prolong flowering.

Mulch

Cut back and compost the spent flower stems in autumn and apply a dry mulch around the crown of the plant to protect against frost damage.

Take cuttings

Take cuttings from non-flowering stem tips in late summer and over winter for planting out the following year.

Due about 12 years ago:

Prune

to keep plants neat and compact, give them a trim once the hard, winter weather is over (usually in late April or early May). This timing ensures that the old stems are still there to shelter the new shoots from any damaging late frosts.

see previous notes

Feed

Once a plant has been pruned, remove weeds and other encroaching plants. Apply a general fertiliser, such as Growmore, to the soil to encourage strong growth

Due almost 12 years ago:

Take cuttings

Take cuttings from non-flowering stem tips in late summer and over winter for planting out the following year.

Deadhead

Remove the faded blooms regularly to prolong flowering.

Mulch

Cut back and compost the spent flower stems in autumn and apply a dry mulch around the crown of the plant to protect against frost damage.

Due about 11 years ago:

Prune

See previous notes

Feed

See previous notes

Due almost 11 years ago:

Dead head

See previous notes

Take cuttings

See previous notes

Tidy & mulch

See previous notes