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Courgette (bush, cylindrical types)
Trial Report 2013
Trials Office, The Royal Horticultural Society Garden, Wisley, Woking, Surrey, GU23 6QB
Final Report for Trial No.1955 Courgette: bush, cylindrical types 2013 1
RHS Trial of Courgette 2013 (bush, cylindrical types)
Introduction:
There were 49 entries in the Trial submitted by various seed companies in the UK, Europe and North America. The objectives of the trial were to assess a range of cultivars; to recommend the Award of
Garden Merit [AGM] to outstanding cultivars for garden use and to demonstrate the cultivation of this crop.
Judging and Recommendation for the Award of Garden Merit: The over-arching criteria for recommendation of plants for the RHS Award of Garden Merit (AGM) are:
Excellent for ordinary use in appropriate conditions
Available
Of good constitution
Essentially stable in form and colour
Reasonably resistant to pests and disease
The trial was assessed for the Award of Garden Merit (AGM) by the Vegetable Trials Assessment Forum on 21 August and 10 September 2013, for the following attributes:
plant habit; fruit colour - skin and flesh; fruit size and texture; earliness; ease of picking;
resistance to pest and disease Cultivation: Seeds were sown in jiffy pots under glass, one seed per pot, during the week commencing 13 May 2013. Young plants (three per entry) were hardened off by placing outside under fleece prior to planting out on 11 June, spaced at one metre between plants and one metre between cultivars. Sulphate of ammonia (24g/m2) and sulphate of potash (20g/m2) were applied as fertilisers on 18 June. Plants were irrigated as necessary during the trial. On 26 June plants were sprayed as a preventative measure against aphid. During late August and September the trial was sprayed intermittently with potassium bicarbonate to help protect against mildew.
Final Report for Trial No.1955 Courgette: bush, cylindrical types 2013 2
Harvesting: Harvesting commenced on 16 July, and continued until 20 September. Fruit was harvested three times weekly, when reaching 10-15cm in length. Average numbers of fruits picked per plant over the season are recorded in the following table.
Cultivar
No. of fruits
Cultivar
No. of fruits
Cultivar
No. of fruits
Alexander 42 Midnight 31 Yolanda 47 Alfresco 27 Obsidian 27 Wanda 39 Astia 43 Patio Star 39 Atena 63 BC-2 38 Patriot 41 Butta 64 Best of British 42 Primula 51 Gold Mine 55 Celeste 56 Romaneso Latino 44 Golden Girl 28 Defender 59 Royal Flush 41 Mayo 56 Endurance 38 Safari 35 Parador 42 Fatboy 53 Speckled Sensation 67 Sligo 55 Firenze 37 Tuscany 44 Solar Flare 20 Genoa 29 Venus 50 Soleil 28 Grey 32 Zucchini 41 Sunstripe 31 Greybeard 59 Jaguar 48 Golden Delight 39 Romano 35 Otto 47 Orelio 52 Mikonos 45 Bassein 45 Gold Star 43 Jasper 36 Bamba 55 Limon 55 Baccara 38
The Forum recommended the Society's AWARD OF GARDEN MERIT (H2) to: ‘Best of British’ F1 AGM (H2) 2013. [Trial No 5]. Sent by and available from Thompson & Morgan, Poplar Lane, Ipswich, Suffolk, IP8 3BU www.thompson-morgan.com Open habit, few spines to hinder harvesting. Sound yield of glossy dark-green fruits.
Available from seed catalogues in the UK
‘Patio Star’ F1 AGM (H2) 2013. [Trial No 20].
Sent by and available from Thompson & Morgan, Poplar Lane, Ipswich, Suffolk, IP8 3BU www.thompson-morgan.com
Compact plant, ideal for small space or container. No mildew. Glossy, dark-green fruits.
Available from seed catalogues in the UK
Final Report for Trial No.1955 Courgette: bush, cylindrical types 2013 3
‘Royal Flush’ F1 AGM (H2) 2013. [Trial No 24].
Sent by and available from Tozer Seeds, Pyports, Downside Bridge Road, Cobham, Surrey KT11 3EH. www.tozerseeds.com
Plant of open habit, mid-size, and few spines. Glossy mid-green fruit.
Available from seed catalogues in the UK
‘Jaguar’ F1 AGM (H2) 2013. [Trial No 30].
Sent by and available from Unwins Seeds Ltd, Alconbury Hill, Huntingdon, Cambridgeshire, PE28 4HY. www.unwins.co.uk
Open habit, few spines. Uniform, glossy mid-green fruit, which hold flowers well.
Available from seed catalogues in the UK
‘Parador’ F1 AGM (H2) 2013.
[Trial No 42].
Sent by and available from Thompson & Morgan, Poplar Lane, Ipswich, Suffolk, IP8 3BU www.thompson-morgan.com
Few spines - facilitates ease of picking. Sound yield of glossy, buttery-yellow fruit. Available from seed catalogues in the UK
Final Report for Trial No.1955 Courgette: bush, cylindrical types 2013 4
‘Orelia’ F1 AGM (H2) 2013. [Trial No 48].
Sent by Clause, Rue Louis Saillant, ZI La Motte, BP83, Portes-les-Valence, France and available from Dobies of Devon http://www.dobies.co.uk/
Upright plant, producing good yield of yellow fruits. Vigorous plants, showing good mildew resistance.
Available from seed catalogues in the UK
‘Goldstar’ F1 AGM (H2) 2013. [Trial No 49].
Sent by Thompson & Morgan, Poplar Lane, Ipswich, Suffolk, IP8 3BU www.thompson-morgan.com
Available from Suttons, UK http://www.suttons.co.uk/
Large plant, few spines. Good crop of mid-size, yellow fruits.
Available from seed catalogues in the UK
‘Yolanda’ F1 AGM (H2) 2013. [Trial No 35].
Sent by Clause, Rue Louis Saillant, ZI La Motte, BP83, Portes-les-Valence, France and available from Suttons, UK http://www.suttons.co.uk/ and Mr Fothergills http://www.mr-fothergills.co.uk/
Compact plant, few spines. Ideal picked as baby courgette. Fruits dark green.
Available from seed catalogues in the UK
Final Report for Trial No.1955 Courgette: bush, cylindrical types 2013 5
The Forum reconfirmed the Society’s Award of Garden Merit (H2) to: ‘Firenze’ F1 AGM (H2) 2007. [Trial No 10].
Sent by and available from Thompson & Morgan, Poplar Lane, Ipswich, Suffolk, IP8 3BU www.thompson-morgan.com
Relatively spine-free, open habit. Slender, glossy, mid-green fruits.
Available from seed catalogues in the UK
‘Tuscany’ F1 AGM (H2) 2007. [Trial No 27].
Sent by and available from Marshalls Seeds, Alconbury Hill, Huntingdon, Cambridgeshire, PE28 4HY http://www.marshalls-seeds.co.uk
Large plant, open habit, spineless. Attractive, fairly uniform, dark-green, glossy fruits.
Available from seed catalogues in the UK
‘Venus’ F1 AGM (H2) 1998. [Trial No 28].
Sent by and available from Marshalls Seeds, Alconbury Hill, Huntingdon, Cambridgeshire, PE28 4HY http://www.marshalls-seeds.co.uk
Compact plant, with almost spine-free stems. Good yield of dark-green glossy fruits.
Available from seed catalogues in the UK
Final Report for Trial No.1955 Courgette: bush, cylindrical types 2013 6
Entries, Senders and Awards AGM = RHS Award of Garden Merit H2 = Tolerant of low temperatures, but not surviving being frozen. Except in frost-free inner-city areas or coastal extremities requires glasshouse conditions. Can be grown outside once risk of frost is over. Vegetable Trials Forum Members: J Barker, C Randel, Dr P Dawson, M Day, J England, Dr M Fletcher, I Gillott, T Hewitt, D I Jeffery, S Mercer, C Moncrieff, B Smith, S Wain, R White. Curatorial Team Member: Lisa Waters Index of Plants in the Trial
Trial Number
Name
AGM
Sender
1 Alexander D.T. Brown
2 Alfresco Mr Fothergill’s Seeds
3 Astia Johnsons Seeds
4 BC-2 Western Hybrid Seeds
5 Best of British Thompson & Morgan
6 Celeste Elsoms Seeds
7 Defender 1993 Thompson & Morgan
8 Endurance Johnsons Seeds
9 Fatboy
Tozer Seeds
10 Firenze 2007 Thompson & Morgan
11 Genoa D.T. Brown
12 Grey Pro Veg Seeds
13 Greybeard Pro Veg Seeds
14 Romano Unwins
15 Mikonos Unwins
16 Jasper Pro Veg Seeds
17 Limon Pro Veg Seeds
Final Report for Trial No.1955 Courgette: bush, cylindrical types 2013 7
Trial Number
Name
AGM
Sender
18 Midnight Mr Fothergill’s Seeds
19 Obsidian Pro Veg Seeds
20 Patio Star Thompson & Morgan
21 Patriot
Mr Fothergill’s Seeds
22 Primula Johnsons Seeds
23 Romaneso Latino Marshalls Seeds
24 Royal Flush
Tozer Seeds
25 Safari Thompson & Morgan
26 Speckled Sensation Western Hybrid Seeds
27 Tuscany 2007 Marshalls Seeds
28 Venus 1998 Marshalls Seeds
29 Zucchini Unwins
30 Jaguar Unwins
31 Otto Unwins
32 Bassein Bakker Brothers
33 Bamba Bakker Brothers
34 Baccara Clause
35 Yolanda Clause
36 Wanda Thompson & Morgan
37 Atena Marshalls Seeds
38 Butta Pro Veg Seeds
39 Gold Mine Tozer Seeds
40 Golden Girl Pro Veg Seeds
Final Report for Trial No.1955 Courgette: bush, cylindrical types 2013 8
Trial Number
Name
AGM
Sender
41 Mayo Pro Veg Seeds
42 Parador Thompson & Morgan
43 Sligo Pro Veg Seeds
44 Solar Flare Western Hybrid Seeds
45 Soleil Mr Fothergill’s Seeds
46 Sunstripe Thompson & Morgan
47 Golden Delight Unwins
48 Orelia Clause
49 Gold Star Thompson & Morgan
Contact details of senders:
Bakker Brothers: + 31 226 331364; www.bakkerbrothers.nl
Clause: www.hmclause.com/
D.T Brown: 0845 371 0532; www.dtbrownseeds.co.uk
Elsoms Seeds: 01775 715000; www.elsoms.com
Johnsons Seeds: 0845 658 9147; www.johnsons_seeds.com
Kings Seeds Ltd: 01376 570000; www.kingsseeds.co.uk
Mr Fothergills’ Seeds: www.mr-fothergills.co.uk
Marshalls Seeds: 0844 557 6700; www.marshalls_seeds.co.uk
Pro-Veg Seeds Ltd: 01223 499130; www.provegseeds.com
Thompson & Morgan: 0844 573 1818; www.thompson-morgan.com
Tozer Seeds: 01932 862059. www.tozerseeds.com
Unwins 0844 573 8400; www.unwins.co.uk
Western Hybrid Seeds: PO Box 1169, Hamilton City CA 95951, United States; E-mail: [email protected]
Source: Horticultural Trials and Relations, RHS Garden Wisley, Woking, Surrey GU23 6QB
Tel: 01483 224234 & Email: [email protected]
More information about RHS Trials and other Trials reports can be found on the RHS Website at www.rhs.org.uk/trials
