Jack Frost
ActiveBrunnera macrophylla (Adams) I. M. Johnst. · Siberian bugloss
Walters John D.
Queen of Hearts
ActiveBrunnera macrophylla (Adams) I. M. Johnst. Siberian bugloss · Ornamentals · bred by Hansen Hans A
also searched as: квин оф хеарц
Variety description
10 August 2026
The plant reaches a height of 40–46 cm, and flower stalks can rise up to 76 cm. The leaves have a pronounced silvery pattern with narrow dark green veins. In mid to late spring, the variety produces small sky-blue flowers gathered in paniculate inflorescences, resembling forget-me-nots in appearance.
The variety possesses good winter hardiness (USDA zones 3–8) and resistance to leaf spot. The plant shows relative resistance to damage by slugs, rabbits, and deer. The dense habit allows the bush to maintain its shape without lodging.
The variety is used in landscape design for borders, shady flower beds, rock gardens, and mass plantings, and is also suitable for container cultivation. Its ornamental qualities allow the inflorescences to be used for cut flowers.
Sources7
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Countries of admission
1 jurisdiction
Green indicates countries where the variety is listed in the national catalogue and its seeds are authorized for sale. Expired registrations are marked separately: the variety was previously admitted, but sale is no longer permitted.
Variety registered as early as 3 jurisdictions, data for which we do not publish: their registry licenses have not yet been verified. This section will be available upon verification.
Variety in registries Regions of admission, rights holders, and status of plant breeders' rights
Parties
- Breeder
- Hansen, Hans A. 501 Developed the variety
- Applicant
- Walters Gardens, Inc. 583 Submitted the application to the register
- Rights holder
- Walters Gardens, Inc. 583 Holds the rights to the variety
Plant breeders' rights
The right is granted for a limited term: propagation of the variety requires a license from the rights holder.
United States of America
№ 16602168
Active
- Application filed 20 August 2019
- Registered 5 January 2021
- Currently active indefinite in the register
More 3 records protections in other jurisdictions are shown on the map above.
Records are sourced from official registry publications. Data sources and legal status
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This is a directory, not an official registry: data is based on public disclosures and may have changed. More about sources
Same species
Other varieties: Siberian bugloss
Silver Heart
ActiveBrunnera macrophylla (Adams) I. M. Johnst. · Siberian bugloss
Willemsen Peter Jan
Jack of Diamonds
ActiveBrunnera macrophylla (Adams) I. M. Johnst. · Siberian bugloss
Hansen Hans A
Milleniumsilber
TerminatedBrunnera macrophylla (Adams) I. M. Johnst. · Siberian bugloss
Angela Wauschkuhn
DE
1 record
Mister Morse
ActiveBrunnera macrophylla (Adams) I. M. Johnst. · Siberian bugloss
Chris Ghyselen
Mr. Morse
ActiveBrunnera macrophylla (Adams) I. M. Johnst. · Siberian bugloss
Ghyselen Chris|Beemem, BE
Nearby in the species list Jack Frost, Jack of Diamonds, Jacks Gold, King's Ransom, Litjac, Little Jack, Looking Glass, Milleniumsilber, Mister Morse, Mr. Morse, Sea Heart, Silver Charm, Silver Heart, Silver Star, Silver Wings, Sterling Silver, TNBRUAP, Tnbruas, White Zebra