Illustration
The Alnwick Rose
Rosa 'Ausgrab'
Also called alnwick castle
The Alnwick Rose blooms from May through October.
Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.
Growing The Alnwick Rose
Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 4–11. Expect it to reach about 4 ft tall and 3 ft wide at maturity, in roughly 3 years (a house reading).
No toxicity note is on file for The Alnwick Rose. That is not a clearance: check its safety for people and pets before planting.
What was checked
Mature height and spread, hardiness zones, sun, water, bloom months and color and the trait tags were checked against named botanical sources for this plant, with what the sources could not settle written down; years to mature size rests on a recorded house rule where no publisher states one, and is marked so; its common name and alternate names have not been checked yet. Each fact above carries its own mark. The planting, spacing and size sections are derived from these checked facts by a fixed rule, not checked separately, and the plant type is the library's own classification.
When to plant The Alnwick Rose
Plant The Alnwick Rose in early spring as soon as the soil is workable, or in early fall at least six weeks before your first frost, so roots establish in cool weather. In zone 7, the middle of its hardy zones 4 to 11, spring means March to May and fall means September or October. Once settled, it blooms from May to October.
Month-by-month timing for your zone is on the planting calendar; if you garden near zone 7, the middle of this plant's hardy range, start with zone 7 in March. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.
How big does The Alnwick Rose get?
4 fttall5 ft 7 inan adult3 ftwideSee The Alnwick Rose in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.
How far apart to plant The Alnwick Rose
Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.
Space The Alnwick Rose about 3 ft apart, center to center, so each plant has room to reach its full width.
Add The Alnwick Rose to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.
Where these facts come from
The Alnwick Rose's height, spread, hardiness zones, sun, water, bloom months and color, trait tags, soil, diseases, pests and toxicity were checked against 13 published sources on August 2, 2026. Each one is linked below with every fact it carried, which can include a fact this page still marks as not yet checked, because a source carrying a value is not the same as the value being held to the standard. Facts not in that list, and the planting, spacing and size sections, are not covered by these sources.
- David Austin Rosesbreeder, US siteheight, spread, hardiness zones, sun, bloom months and color, trait tags and soil
- Heirloom Rosesheight, spread, hardiness zones, sun, water, bloom months and color and trait tags
- HelpMeFind Rosesheight, hardiness zones, bloom months and color, trait tags and diseases
- Grace Rose Farmheight, spread, hardiness zones, sun and trait tags
- Plant Addictsheight, spread, hardiness zones, sun and trait tags
- menagerieflower.comMenagerie Farm & Flowerheight, spread, hardiness zones and trait tags
- NC State Extensiongenus Rosasun, soil and pests
- Clemson Home and Garden Information CenterClemson Cooperative Extension HGIC 1172water and soil
- angelgardens.comAngel Gardenstrait tags
- ASPCAAnimal Poison Control, toxic and non-toxic plant listtoxicity
- Clemson Home and Garden Information CenterClemson Cooperative Extension HGIC 2106diseases
- Clemson Home and Garden Information CenterClemson Cooperative Extension HGIC 2107pests
- University of Maryland ExtensionHome and Garden Information Centerdiseases
How the checking works, and what each standard covers, is on the verified plants page.
Explore similar plants
You might also like
Design a garden with this
Drop this plant onto a 3D plan, see how it fills in, and watch your whole garden bloom across the year.