Gras Romanesc is a late-ripening European plum with distinctive blue-grey skin and sweet, rich yellow flesh that has captivated gardeners since the late 19th century. Also known as Herrenhausen, this German heirloom produces vigorous, highly productive trees suited to zones 5-9. The fruit's real treasure emerges after harvest, as the sugars intensify during storage, transforming an already delicious plum into something even more complex and rewarding.
Full Sun
Moderate
5-9
144in H x ?in W
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Low
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The skin displays a striking blue blush over grey, a visual signature that hints at the golden clingstone flesh beneath. Late ripening means you'll harvest fruit in early fall when many other plums have finished, extending your season considerably. The keeping quality is exceptional, the sugars actually concentrating as the fruit sits, so a plum picked firm becomes sweeter with time.
Gras Romanesc excels as a fresh eating plum, where its sweet, rich yellow flesh and clingstone texture make it satisfying to bite into whole. The fruit's exceptional keeping qualities suggest use in storage and preservation; the intensifying sugars make it particularly suited to cooking down into preserves, compotes, or dried preparations where the concentrated sweetness can shine.
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Plant bare-root trees in early spring or fall when dormant. Choose a location with full sun exposure and ensure the planting hole is large enough to accommodate the root system without crowding. Backfill with amended soil and water thoroughly to settle.
Wait until early fall when the fruit develops its full blue-grey blush and yields slightly to gentle pressure. Unlike some plums, don't rush to eat or process immediately; harvest when the plum is firm and store it for several days to weeks. The flavor will deepen noticeably as sugars concentrate, signaling peak ripeness when the fruit becomes softer and the sweetness intensifies.
Prune trees in late winter while dormant to establish an open center form that allows light penetration and air circulation. Remove any crossing branches, dead wood, or growth that crowds the canopy. Since Gras Romanesc ripens late in the season, avoid heavy pruning in fall that might stimulate tender new growth vulnerable to frost.
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“This variety emerged as a beloved German plum selection, gaining prominence in the late 19th century as a preferred choice among orchardists who valued both productivity and flavor longevity. The dual name reflects its journey across European gardening traditions, where it became known in different regions by different names, yet always recognized for the same characteristic richness. It has persisted in cultivation for well over a century, a testament to the satisfaction it delivered to generations of growers.”