Penstemon ‘Garnet’ ( P.’Andenken an Friederich Hahn’ )

Penstemon ‘Garnet’ ( P.’Andenken an Friederich Hahn’ )

£6.50

9 in stock

Potsize – 1L

Penstemon ‘Garnet’ ( P.’Andenken an Friederich Hahn’ ) A free flowering shrubby perennial with spikes of tubular deep wine red flowers and fine narrow foliage. A Penstemon of excellent constutution which is also attractive just in leaf. Gives a long and colourful summer display even when not deadheaded. Cut back lightly in Autumn; harder in Spring. Bred to improve the constitution of P.’Southgate Gem’ by crossing it with (possibly) P.hirsutus by the Swiss breeder, Hermann Wartmann in 1918. Although not stictly correct,the name ‘Garnet’ is the name usually applied in English speaking countries and the one under it was introduced in the 1930’s

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9 in stock

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Description

Penstemon ‘Garnet’ ( P.’Andenken an Friederich Hahn’ )

A free flowering shrubby perennial with spikes of tubular deep wine red flowers and fine narrow foliage. Penstemon ‘Garnet’ ( P.’Andenken an Friederich Hahn’ )is a Penstemon of excellent constutution which is also attractive just in leaf. Gives a long and colourful summer display even when not deadheaded. Cut back lightly in Autumn; harder in Spring. Bred to improve the constitution of P.’Southgate Gem’ by crossing it with (possibly) P.hirsutus by the Swiss breeder, Hermann Wartmann in 1918. Although not stictly correct,the name ‘Garnet’ is the name usually applied in English speaking countries and the one under it was introduced in the 1930’s.

Penstemon ‘Garnet’ ( P.’Andenken an Friederich Hahn’ ) – The German form of the name means ‘ In memory of Friederich Hahn’

There are around 250 species of Penstemon, and all but one, P.frutescens, are native to the Northern America, chiefly the Western United States.

Penstemons can be split into the species, of which not many are common in British gardens, and the European hybrids which have been bred from a relatively small number of mostly Mexican species, notably P.gentianoides, P.hartwegii and P.cobaea. Breeding began in Continental Europe sometime befor 1835, but details are confused and records scarce. Often the species credited for a cross was not introduced until after the record published ! By 1850-1870 breeding was well underway on both sides of the Channel and several named cultivars commonplace. By 1900, Forbes was offering 550 named varieties. Lemoine had raised 470 himself before his death in 1911.

Many Penstemon in the wild grow in quite poor soils, porous and of low fertility. However these conditions are not  a prerequisite for growing the wealth of hybrids seen today. Penstemon are quite tolerant of dry conditions, but richer soils are also well tolerated. Increasing the fertility and water will increase the lushness of Penstemons which is a benefit in terms of display, but will lead to lusher growth that is more prone to damage and will probably shorten the plants life. Alkalinity is very well tolerated.

The best way to keep your plants tidy is to give them a light trim before winter, leaving most of the stems as protection for the basal shoots. When the basal shoots grow away strongly in Spring and are 5-10cm long, trim away all the previous year’s growth.

Deadheading, principally in the form of the removal of whole flowering shoots, can be beneficial in prolonging flowering, especially on drier and poorer soils.

The Native Americans used Penstemon roots as a remedy against toothache.

The name Penstemon has a disputed origin. Penstemons are members of the Scrophulariaceae which are distinguished by having four fertile stamens. Penstemon have a fifth unfertile stamen. John Mitchell described Penstemon and passed this description to Linnaeus who subsequently published under Chelone pentstemon, adding the extra ‘t’. It was therefore assumed that it derived from ‘penta’ = five. However subsequent work suggests that it was originally meant as ‘paene’=almost. So it may be ‘five stamens’ or ‘almost a stamen’, take your pick.

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