苗圃沿革与 Mt. Hood 山脚地理
多佛苗圃 (Dover Nursery) 是一家位于美国俄勒冈州 Sandy 镇、专精杜鹃属 (Rhododendron) 与落叶杜鹃 (Azalea) 的家族式苗圃，坐落在 Mt. Hood 山脚下的喀斯喀特山脉 (Cascade Range) 西麓。苗圃由 Mike 与 Maria Stewart 夫妇经营，地址为 42125 SE Kleinsmith Road, Sandy, Oregon 97055，自 1990 年代起即为美国太平洋西北地区 (Pacific Northwest) 收集与培育杜鹃属品种最为多样的苗圃之一。
杜鹃属品种体系与栽培方式
苗圃的杜鹃属品种体系分为三大目录：常绿杂交杜鹃 (Hybrids)、原生种杜鹃 (Species) 与落叶杜鹃 (Azaleas)，其中常绿杂交杜鹃按字母 A–Y 列出超过 260 个品种，原生种杜鹃包含 24 个以字母分类的物种（如 R. albrechtii、R. arboreum var. roseum、R. augustinii 群系下的 Blue Cloud、Electra、Towercourt 等），落叶杜鹃目录则收录 30 余个耐寒品系（如 Apricot Suprise、Cheerful Giant、Gibraltor、Orchid Lights、Rosy Lights、White Lights 等北方之光系列 Northern Lights Hybrids）。所有植株以田间露地栽培 (Field Grown) 与容器栽培 (Container Grown) 两种方式培育，田间苗按 10–12″、12–15″、15–18″、18–21″、21–24″、24–30″、30–36″、36–42″、42–48″ 共 9 段高度定价，容器苗分 1 加仑、2 加仑、3 加仑三档，杂交杜鹃按生长速度、栽培难度与稀有度划分 A、B、C 三级价格档位。
邮购销售政策、定价与折扣
苗圃自 1990 年代起即以邮购 (Mail-Order) 方式向全美客户销售杜鹃植株。其销售条款明确：所有销售以 F.O.B. Dover Nursery 为准 (即提货地点为苗圃所在地)，买方自行选择承运商并承担运费，新客户须在提货时结清余款，已建立信用的客户可在交货后 30 天内付清 25% 定金后的余款；逾期账户每月加收 1.5% 服务费 (年化 18%)。苗圃对老客户给予大额订单折扣——单次订单超过 3,000 美元可享 3% 折扣，超过 5,500 美元可享 5% 折扣，且需在约定期限内付清才能享受。植株离开苗圃时保证处于良好状态，交承运商后风险转移给买方，但苗圃仍欢迎客户反映任何不满意情况，承诺客户满意度是苗圃首要关注点。
实体展售园、预约访问与协会网络
苗圃在 Sandy 总部设有实体展售园 (Display Garden)，访客可实地查看杜鹃属品种的成株表现与花色花型，但苗圃明确要求访客须提前电话预约 (Call ahead for an appointment)，以便园方为每位访客预留充足的导览时间。苗圃在 1997 年 7 月 25 日开通官方网站 (dovernursery.com)，1998 年起加入美国杜鹃花协会 (American Rhododendron Society, ARS) 与俄勒冈苗圃协会 (Oregon Association of Nurseries, OAN) 等行业组织网络，长期与太平洋西北地区的杜鹃属育种者与苗圃保持品种交流。
官网：http://www.dovernursery.com
Nursery Background and Mt. Hood Foothills Location
Dover Nursery is a family-run specialist nursery located in Sandy, Oregon, USA, at the western foothills of the Cascade Range beneath Mt. Hood. Founded and operated by Mike and Maria Stewart, the nursery is situated at 42125 SE Kleinsmith Road, Sandy, Oregon 97055, and has served as one of the most diverse rhododendron and azalea collections in the U.S. Pacific Northwest since the 1990s. The business can be reached by phone or fax at 503-668-7565 or by e-mail at Mike@DoverNursery.com.
Rhododendron Variety Holdings and Growing Methods
The nursery’s variety holdings are organized into three catalogs: evergreen hybrid rhododendrons, rhododendron species, and deciduous azaleas. The evergreen hybrid catalog lists more than 260 cultivars arranged alphabetically from A to Y (for example, Abendsonne, Aglo, America, Anah Kruschke, Anna Rose Whitney, Anuschka, Autumn Gold, and Azurro), while the species catalog covers more than twenty species including R. albrechtii, R. arboreum var. roseum, and four R. augustinii selections (Blue Cloud, Electra, Towercourt, and the O.S.U. form). The deciduous azalea catalog includes roughly thirty cold-hardy cultivars, ranging from Apricot Suprise, Cheerful Giant, and Gibraltor to the Northern Lights Hybrids such as Orchid Lights, Rosy Lights, and White Lights. All plants are produced as field-grown stock in nine height grades (10–12″, 12–15″, 15–18″, 18–21″, 21–24″, 24–30″, 30–36″, 36–42″, 42–48″) or as container-grown stock in 1-, 2-, or 3-gallon pots, with hybrids further classified into A, B, and C price tiers that reflect growth rate, cultivation difficulty, and rarity.
Mail-Order Sales, Pricing Tiers, and Volume Discounts
Dover Nursery has shipped rhododendrons by mail order to customers across the United States since the 1990s. The published terms of sale specify that all orders are sold F.O.B. at the nursery: the buyer selects the carrier and pays the shipping cost, new customers must pay the balance at the time of pickup, and customers with an established and approved account may settle the balance within thirty days of a 25% down payment. Overdue accounts are subject to a 1.5% monthly service charge (an 18% annual rate). The nursery also extends volume discounts to repeat buyers — a 3% discount on any single order over USD 3,000, and a 5% discount on any order over USD 5,500 — provided the account is paid in full within the agreed sale terms. Stock is guaranteed to be in good condition when it leaves the nursery, with risk passing to the buyer upon delivery to the carrier; the nursery nevertheless welcomes any feedback from dissatisfied buyers and treats complete customer satisfaction as a top priority.
Display Garden, Appointment Visits, and Industry Affiliations
A display garden is maintained at the Sandy headquarters where visitors can see established rhododendrons and azaleas in the landscape, and the nursery explicitly asks visitors to call ahead for an appointment so that staff can devote adequate time to each guest. The first version of the dovernursery.com website went live on 25 July 1997, with a text-only version added in August 1997 and a virtual tour added in August 1997 as well; the site later became a long-running catalog reference for the nursery’s hybrid, species, and azalea listings. The nursery has been affiliated with the American Rhododendron Society (ARS) and the Oregon Association of Nurseries (OAN), and exchanges plant material and information with rhododendron breeders and specialty nurseries throughout the Pacific Northwest.
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