英国 大丽花世界 The Growing World of Dahlias – 世界大丽花目录收录68500余个大丽花变种

英国大丽花爱好者 Dave Bates 独自维护的全球大丽花百科

The Growing World of Dahlias 由英国大丽花研究者、作家与讲师 Dave Bates 长期独自维护,站点托管在英国一台老式 Microsoft IIS / ASP.NET 静态服务器上,按 A 到 Z 排序的国际大丽花变种目录、世界范围内的供应商名单、英国及欧洲、北美、澳大利亚与新西兰的可购清单,外加一份按月发布的最新修订日志,构成网站的四大支柱。Dave Bates 在自述页中把这座站点定位为「一座面向全世界大丽花爱好者的大丽花百科」,内容覆盖花园与露台大丽花的分类、栽培、展出与新品种选育,下设 13 个子栏目,分别按植物学、栽培日历、命名、供应、注册、杂交、刊物档案等主题组织资料。

68,500 余个大丽花变种与 4,800 名育种者名录

网站最核心的资产是「世界大丽花目录」(World Dahlia Directory),收录 68,500 余个大丽花变种,跨度从 1800 年代初期一直延续到当下,由 Dave Bates 本人长期整理,加上加州已故 Gerry Weland 协助研究,被作者称为目前公开网络中最齐全的全球大丽花名录;其中包含约 4,800 位来自世界各地的育种者条目,每条都附有育种者代码、国别、姓名、ADS 注册码及所在地,以及他们常用的前缀、后缀及其起源资料。每个变种条目与同名目录、前后缀字典、命名来历三大子栏目相互关联,访客既可以从一个花名追到与之同名的育种者,也可以反过来从育种者前缀查到所有他育成的变种。

十五类花型与十三色分类体系

在分类学层面,网站完整记录了自 1962 年布鲁塞尔国际园艺大会、1966 年马里兰大会以来逐步完善的国际大丽花分类方案:由英国皇家园艺学会(RHS)作为国际登录机构,1969 年正式发布十类划分,2010 年扩充至十四类,2017 年再加入第十五类「Stellar 星辰型」。当前体系涵盖单瓣型、银莲花型、领饰型、睡莲型、装饰型、球型、 Pompom 球型、仙人掌型、半仙人掌型、混合型、流苏型、星辰型、兰花型、双兰花型与牡丹型,每类按花径再划分超巨型、巨型、中型、小型与微型五档;在色彩上统一为白、黄、橙、焰、铜、红与深红、浅粉与深粉、丁香紫与薰衣草、紫红与酒红与紫罗兰、混色、双色、斑驳与混镶十三档,覆盖几乎所有可见的花色组合。

大丽花全年栽培与展出手册

「Dave’s Dahlia Diary」按月份给出在英国中部气候下(最末霜日约为 6 月 1 日,首场重霜通常在 10 月中下旬)的全年操作清单,从 1 月检查块根、催芽、扦插,到春末定植、夏初摘心与疏蕾,盛夏追肥与防风防雨覆盖、9 月切花与展前护花、10 月起挖与块根分拣、11 月至 12 月室内储存与冬季翻土,详尽而朴素;「Exhibiting Dahlias」则把英国国家大丽花学会(NDS)的参展流程拆解为计划、准备、展出三段,详述花梗伸展器(neck stretcher)、防雨防风防褪色的覆盖棚、bleeding 放气、Bikini 展示瓶与 OASIS 插花海绵的使用方法、评判打分细节,以及新苗参赛(seedling class)的特殊评审规则。

命名注册、供应目录与全球读者协作

在命名注册层面,网站同步发布英国皇家园艺学会(RHS)作为国际大丽花栽培品种登录机构所提供的在线注册通道,并保留传统的电邮与邮寄注册地址;在供应层面,网站把英国与欧洲、北美(链接 Dahlia Addicts)、澳大利亚与新西兰的供应商按代码—名称—国别列出,每家附上 2026 年的最新供货清单链接,覆盖 Avon Bulbs、Aylett Nurseries、Halls of Heddon、Withypitts Dahlias、JRG Dahlias、Shaw Green Dahlias 等数十家苗圃的花园品种、巨型展示品种与种子系列。Dave Bates 通过公开邮箱向全球读者征集错误修订、新增条目与品种照片,自 1990 年代延续至今已积累二十余年的内容厚度,是当前公开网络中以个人之力长期维护的最完整的大丽花专题资源站之一。

A British Dahlia Encyclopaedia Maintained by Dave Bates

The Growing World of Dahlias is a long-running dahlia resource site personally maintained by Dave Bates, a UK-based dahlia researcher, author and lecturer. The site is hosted on a classic Microsoft IIS / ASP.NET server in the United Kingdom and is organised around an A-to-Z international dahlia cultivar directory, a worldwide supplier index, current availability lists for the UK and parts of Europe, North America and Australia / New Zealand, and a monthly change log. Dave Bates describes the site as an encyclopaedia of dahlias for gardeners, exhibitors and breeders worldwide, covering classification, cultivation, showing, raising of new varieties and historical botany. The site carries 13 sub-sections that range from plant botany and the cultivation calendar to naming, suppliers, registration, hybridising and archival articles.

Over 68,500 Cultivars and Some 4,800 Raisers Worldwide

At the heart of the site is the World Dahlia Directory, a list of more than 68,500 dahlia cultivars researched by Dave Bates with substantial help from the late Gerry Weland of California. The directory is described as the most comprehensive list of dahlia names available in the public domain and traces the history of the genus back to the early 1800s. The directory covers around 4,800 raisers from across the world, with entries that include a raiser code, name, country, prefix, ADS registration code and locality. Prefix and suffix dictionaries and a separate name-origin section are linked to each cultivar record, so a visitor can trace a single cultivar back to its raiser or scan a raiser’s prefix for the full set of varieties he or she has produced.

Fifteen Form Groups and Thirteen Colour Classes

The site documents the international classification of dahlias agreed at the 1962 International Horticultural Congress in Brussels and the 1966 congress in Maryland, formalised by the Royal Horticultural Society as the International Registration Authority for Dahlias in 1969 with ten form groups, expanded to fourteen in 2010 after a meeting with the NDS and the Dutch Dahlia Authorities, and extended in 2017 with a fifteenth group, Stellar. The current form groups cover Single, Anemone, Collerette, Waterlily, Decorative, Ball, Pompon, Cactus, Semi-Cactus, Miscellaneous, Fimbriated, Stellar, Double Orchid, Single Orchid and Paeony flowered dahlias, each sub-divided by bloom diameter into Giant, Large, Medium, Small and Miniature (with the Ball and Pompon groups using their own size bands). Colour is classified into thirteen classes covering White, Yellow, Orange, Flame, Bronze, Red and Dark Red, Light Pink and Dark Pink, Lilac Lavender and Mauve, Purples Wines and Violets, Blends, Bicolours, Variegated and Mixed.

A Year-Round Diary and a Full Showing Manual

Dave’s Dahlia Diary describes the activities required throughout the year to grow dahlias in the English Midlands, where the last frost is around 1 June and the first killing frost usually arrives in mid to late October, with winter temperatures dipping just below freezing for a few days each winter. The diary covers January tuber inspection and early propagation, late winter potting, spring planting out, summer stopping, debranching and disbudding, autumn lifting and dividing, and winter storage and soil preparation. The Exhibiting Dahlias section breaks the NDS showing process into planning, preparation and staging, with detailed notes on neck stretchers, polythene and umbrella bloom covers, bleeding hollow dahlia stems, the use of Bikini vases and OASIS floral foam, judging rings and the Classified Directory, and the special rules that apply to seedling and sport classes.

Naming Registration, Supplier Lists and Reader Contributions

For naming and registration the site links to the Royal Horticultural Society’s online Dahlia Cultivar Registration facility and lists the traditional email and postal channels for paper registration at RHS Garden Wisley. For supply it cross-references availability lists for the UK and parts of Europe, North America via Dahlia Addicts, and Australia and New Zealand, and gives direct links to the 2026 catalogues of dozens of UK and European nurseries including Avon Bulbs, Aylett Nurseries, Halls of Heddon, Withypitts Dahlias, JRG Dahlias and Shaw Green Dahlias, as well as seed-focused suppliers such as Kings Seeds and Chiltern Seeds. Dave Bates invites corrections, photographs and cultivar additions from readers by email and has continued to update the encyclopaedia on a roughly monthly basis, making it one of the longest-running single-author dahlia resources on the open web.

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