The protected crop did show some signs of leaf scorch, and subsequent Botrytis, thought to be result of a rapid growth during a period of high temperatures and light levels. While the crop was slow to germinate it did produce a marketable crop within 10 to 13 weeks after sowing, depending on the time of year. The main observations were that this species needs to be plug-raised, because the seed is slow to germinate, and that the crop is very prone to two-spotted spider mite.īupleurum rotundifolium ‘Griffithii’ - was trialled as a direct-sown crop, both outdoors and under polythene tunnels. ![]() It does however, overwinter successfully. Continuity of supply is possible with sequential sowings, but the issue of stem elongation after harvest must be addressed before it will be suitable for use as a filler in mixed bouquets.Īnthriscus sylvestris ‘Ravenswing’ - was included in the direct-sown trials, but should in fact be treated as a perennial because very few flowers are produced in the first year. The differences in varieties were subtle rather than significant, with ‘Green mist’ and ‘Casablanca’ being the main two commercially available ones.Īnethum graveolens - was shown to germinate quickly and then grow away very vigorously with a marketable stem being produced in seven to 10 weeks. On average marketable stems are produced after 13 to 17 weeks, with fortnightly sowings enabling continuity of supply. Overall the trials indicated that this crop can be successfully grown in the UK and has potential as both an outdoor and protected crop, but in order to produce flower stems and heads that are suitable for use as fillers, a higher planting density of around 64 plants/m 2 is required, especially for crops under protection, which are more vigorous. visnaga – extensive trials focused on the type of starting material, planting density, scheduling and variety comparisons. visnaga, Anethum graveolens, Anthriscus sylvestris ‘Ravenswing’, Bupleurum rotundifolium ‘Griffithii’, Carthamus tinctorius, Cosmos bipinnatus, Daucus carota ‘Dara’, Euphorbia oblongata and Ridolfia segetum. The species examined at the CFC included : Ammi majus and A.
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