爱沙尼亚 Roogoja 农场 Roogoja talu – 全球已知最靠北的铁线莲育种与生产地之一

农场概况

爱沙尼亚 Roogoja 农场（Roogoja talu）是位于爱沙尼亚北部 Harjumaa 县 Kose 自治市 Karla 村的一座家族农场，是全球已知最靠北的铁线莲育种与生产地之一。农场占地约 43 公顷，坐落在 Kuivajõe 河岸边，1899 年被 Kivistik 家族买下经营至今，目前已是第五代人在这里生活。铁线莲和葡萄是这里延续四十多年的核心业务。

Kivistik 家族与育种历史

农场的铁线莲育种工作主要由 Uno Kivistik 与妻子 Aili Kivistik 推进。Uno 已于 1998 年辞世，Aili 至今仍和儿子 Taavi 在农场继续培育新品种。1979 年到 1992 年间，他们用 40 多个亲本做了上千个杂交组合，六年多时间先后种出六千余株杂种苗，从中初步筛选出两百五十多个有潜力的杂交品系，参加立陶宛、拉脱维亚和爱沙尼亚的国家品种比较试验，是波罗的海地区最重要的铁线莲育种家族之一。Aili 在 2013 年因与丈夫共同培育出 140 多个铁线莲品种获得「Golden Clematis Award」终身成就奖。

收藏与品种结构

1992 年，Kivistik 家族的大花铁线莲收藏园被评定为欧洲最大的同类收藏之一。农场收藏有 23 种铁线莲原生种与 270 余个品种与杂交种，涵盖从早春开花的 alpina 类、常绿新西兰杂交，到晚花 viticella 与 texensis 类的整个谱系。早期最成功的品种之一是 1980 年推出的「Valge Daam」（White Lady），它让 Kivistik 夫妇确信杂交之路走得通，此后才有整个育种计划的长期投入。Roogoja 出品的品种在北欧的芬兰、瑞典、波罗的海国家和俄罗斯北部尤其受欢迎。

气候特点与品种方向

作为已知最北端的铁线莲育种地，Roogoja 的选育方向集中在「每年从一年生新枝上大量开花、抗寒性强」的品种——这里冬季漫长、夏季短暂，铁线莲需要适应短生长期、低温回芽和偶尔的晚霜。能在这里稳定表现的品种，拿到更温和的西欧或北美气候下也基本没问题，因此 Roogoja 系列在欧洲北部苗圃目录里被反复推荐。每年八月初，庄园里的铁线莲花园正值盛花期，对外开放参观，常见外国游客主要来自芬兰、瑞典、挪威、俄罗斯、拉脱维亚，也间有美国、加拿大、澳大利亚和日本的爱好者专程来访。

参观、邮购与对外联系

农场每年 7 月 20 日至 8 月 20 日前后向公众开放，是欣赏收藏园盛花期；植物售卖季则从 4 月 15 日延续到 9 月 30 日，售苗高峰季节 Kivistik 一家经常在各地花卉集市出摊，农场不一定有人。邮购订单自每年 11 月 1 日起接受欧盟范围内的预订，包裹则统一从次年 4 月 10 日开始发货。农场也参加每年 7 月的「Avatud Talud」开放农场日和爱沙尼亚国内的花卉集市，业余爱好者可以通过这些活动与 Kivistik 家族面对面交流铁线莲种植经验。

About the Farm

Roogoja talu is a family farm in Karla, Kose municipality, Harju County in northern Estonia, and one of the most northerly clematis breeding and growing sites in the world. The 43-hectare property sits on the bank of the Kuivajõe and has been in the Kivistik family since 1899; the fifth generation now lives on the farm. For more than forty years clematis and grapevines have been the core of the business.

The Kivistik Family and Breeding History

Clematis breeding at Roogoja was driven mainly by Uno Kivistik and his wife Aili Kivistik. Uno died in 1998, while Aili continues to work on new varieties at the farm alongside their son Taavi. Between 1979 and 1992 the Kivistiks made more than a thousand controlled crosses using over forty parent varieties, raised some six thousand hybrid seedlings over six-odd years, and selected around two hundred and fifty promising lines for further trials. The hybrids were entered in national variety trials in Lithuania, Latvia and Estonia, and the family is now regarded as one of the most important clematis breeders in the Baltic region. In 2013 Aili received the Golden Clematis Award for a lifetime of work, recognising the 140-plus varieties she and Uno bred together.

Collection and Variety Range

In 1992 the Kivistik family’s collection of large-flowered clematis was recognised as one of the largest of its kind in Europe. The farm holds twenty-three wild clematis species together with more than two hundred and seventy varieties and hybrids, covering the full spectrum from early-spring Atragene alpina types and evergreen New Zealand hybrids through to the late-flowering viticella and texensis groups. One of the earliest landmark varieties, ‘Valge Daam’ (White Lady) from 1980, convinced the Kivistiks that the cross-breeding path was worth pursuing and led directly to the long-running programme that followed. Roogoja varieties are particularly popular in Finland, Sweden, the Baltic states and northern Russia.

Climate and Breeding Goals

As the most northerly known clematis breeding site, Roogoja focuses on producing varieties that flower freely on one-year-old wood and can stand hard winters — conditions forced on the plants by long, cold winters and short, cool summers at this latitude. Varieties that perform reliably here tend to do well in milder western European and North American gardens, which is why Roogoja cultivars are recommended again and again in northern European nursery catalogues. The collection garden comes into its own in early August, when the Kivistik family opens the farm to visitors; foreign guests come mainly from Finland, Sweden, Norway, Russia and Latvia, with occasional visitors from the United States, Canada, Australia and Japan.

Visiting, Mail Order and Contact

The farm opens to the public roughly from 20 July to 20 August each year for visits to the collection garden during peak flowering, while the plant sales season runs from 15 April to 30 September. During the busiest weeks the family is often out at flower fairs around the country and the farm itself is not always staffed. Mail-order for EU destinations opens each year on 1 November, with parcels dispatched from 10 April the following spring. The family also takes part in Estonia’s nationwide Avatud Talud (Open Farms) day in July and in local flower fairs, so enthusiasts often get to talk to the Kivistiks in person about growing clematis in colder climates.

Official Site: https://www.roogoja.ee/

For more on northern European clematis breeders and cold-climate collections, see the Royal Horticultural Society clematis resources.

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