Growing Hamamelis Witch Hazel

Hamamelis in flower hamamelis- small tree

 

Growing Hamamelis Witch Hazel

Hamamelis is a winter flowering large shrub or small tree which also provides strong autumn leaf colour. Image left shows a close up on the flowers of Hamamelis which are attractive and image right the general shape and appearance of a Witch Hazel in flower.  The majority of Hamamelis flower in winter and do so on bare branches, flowers appearing before coming into leaf, similar to Forsythia. Hamamelis x intermedia and Japonica bear flowers in the winter and have lovely autumn colour. An added bonus is that some varieties have scented flowers, such as 'Vesna' (RHS Merit) a sweet honey scent, 'Barmstedt Gold' (RHS merit) scent described as similar to bergamot, H Mollis 'Wisley Supreme'. Most grow up to around 4metres although there are some smaller varieties.

Flowers tend  to be predominantly yellow, but some varieties have red and orange tinges. Image left shows the flowers are spidery and unusual; the scented varieties are good to cut and bring indoors for colour and scent.  Hamamelis are slow to get going and can take a couple of years to get established and to flower well.  Witch Hazel is slow growing about 3-4m in 10 year, suitable for a smaller garden. Witch Hazel is hardy to H5 which is between -10-15C.

Given the time of year Hamamelis flower Witch Hazel look good underplanted with Helleborus, snowdrops as in the image right, and with spring bulbs to make spring woodland garden.

Hamamelis will tolerate partial shade, although they may bloom better in sun which is their preferred growing conditions. To establish Hamamelis in an area of partial shade the other growing conditions need to be suitable. This means fertile, well-drained soil which is neutral to acid ideally a pH range of 4.5 -6.5 . Witch Hazels are a long-lived and hardy but do not like to be in a frost pocket or an exposed area. If Hamamelis is planted in frost prone area you may need to protect from frost for the first year or so until established. In addition until established Hamamelis Witch Hazel may need watering during dry periods.  Once established, trouble-free.

In a sunny area Hamamelis will be more tolerant of other soil conditions but still will not thrive in an exposed area, even though they are described as fully hardy. The flowers on Hamamelis bloom on last year's wood, which means that Hamamelis Witch Hazel should only be pruned immediately flowering. Witch Hazel does not require pruning, but it can be pruned to restrict it's size or remove dead wood. It should be pruned in early Spring after flowering, to reduce size take out 2 or 3 longer branches to a side branch to keep a good shape.

Hamamelis are not the easiest of shrubs to get established, and if you feel your garden conditions are not idea, but are looking for an early flowering yellow garden shrub Forsythia is a less adventurous  but an easier alternative.

Best Hamamelis to Grow 

A good guide on which varieties to grow is by reference to the RHS and between 2014-2016 the RHS conduced trials on Hamamelis at the Witch Hazel Nursery in Kent. 138 cultivars were assessed over 3 years and 17  were granted the RHS award of garden merit rhs_agm_logo-75x75  The plants assessed were all mature between 10-20 years old and the factors the judges considered were: flower quality which was based on colour, size ad shape, together with the amount of flowers and length of flowering time. The  full list is on the RHS web site. Listed below are varieties which did well in the trial and are readily available.

H.x intermedia 'Arnold Promise' late flowering in february, described as flowering prolifically highly scented lemon yellow flowers with good autumn colour.

H. x intermedia 'Rubin' the only red variety to gain the award. It has a little scent and is a bushy shrub rather than a tree. The recommendation is to plant it where the winter sun suns through it so on a light back drop not dark to distinguish and illuminate the flowers.

H. x intermedia 'Jelena' coppery orange  flowers without scent.

H. x intermedia 'Pallida' early to mid season flowering, strong yellow flowers with citrus scent very popular and reliable with good autumn colour.

 

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