Avoid heavy pruning in autumn, as this promotes soft new growth more susceptible to frost damage. Griselinia - New Zealand Broadleaf - are upright evergreen shrubs that have simple, oval glossy green leaves and have yellow ... can go black in a cold winter so we suggest feeding them with sulphate of potash in Autumn to toughen the stems against frost damage. Top Answer. Answer. When the bad weather hit, the plants were much more vulnerable than they would have been a month earlier. Sap started rising and shrubs started budding. They are rarely bothered by pests or disease. As Beech is quite late to come into leaf this may not be a common occurrence and a frost of this nature is likely to damage other susceptible trees and … However, the shoots regrow in quickly so that the damage is short-lived. 2011-03-07 22:54:04 2011-03-07 22:54:04. Wiki User Answered . Best pruned with secateurs at first and then, once a proper hedge shape is established, pruned with shears or a hedge trimmer. I suspect (from comparing places where it survived V's places where it died) that most of the hedging that died had been cut late in the year. ... Griselinia Rebecca is a very popular evergreen shrub and does make … I know of the issues with frost damage but I also know of Griselinia hedging that survived fine. Lucy Adams, Head Gardener of Doddington Place Gardens, told me that the real issue was the week of warm weather at the beginning of March, just before low temperatures, snow, ice and wind returned. Griselinia with frost damage will the leaves come back? Sadly, that sounds like frost damage, as these shrubs are borderline hardy. If they are hit by frost just trim back the damaged growth. Makes a neat feature plant in moderngardens. It has some frost damage - should I prune the frost damaged branches? It is in leaf all year, in flower in May. Comment: Griselinia lucida is actually an … Frost damage The new tender Spring growths of Beech hedges can be severely damaged by late Spring frosts that occur after the leaves have emerged. Uses: Often used as a hedge, especially in coastal areas. ... Griselinia is not, however, found naturally north of the Bay of Islands. It is hardy to zone (UK) 7 and is not frost tender. ... Griselinia littoralis Identification Sheet Origin New Zealand Genus Griselinia Species / Cultivar littoralis Common name(s) Broadleaf, Kapuka Situation Full sun to part shade, any … Clipping Griselinia Hedging. The species is dioecious (individual flowers are either male or female, but only one sex is to be found on any one plant so both male and female plants must be grown if seed is required). It is, however, vulnerable to frost. Asked by Wiki User. . We purchased over 65 griselinia littoralis (in pots) last November and planted same month. 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