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Hardy perennial
Boraginaceae
Perennials
Caucasian Forget-me-not 'Frostbite'
Brunnera
Brunnera macrophylla 'Frostbite': 25 cm high and 40 cm spread, partial shade to full shade. Blue flowers in April-May. Zone 3; choose a soil compatible with its moisture needs.
- Exposure
- Partial shade to shade
- Life cycle
- Hardy perennial
- Hardiness
- Zone 3
Discover the plant
Common nameCaucasian Forget-me-not 'Frostbite'
FamilyBoraginaceae
GenusBrunnera
CultivarGivres
TypeHardy perennial
Botanical nameBrunnera
Caucasian forget-me-not 'Frostbite' (Brunnera 'Frostbite') brings a palette of blue to the garden. The foliage displays shades of silver and green, to be highlighted among different textures. The usual flowering period is April-May. At maturity, expect 25 cm in height and 40 cm in width, which suggests its use in a shaded border. The heart-shaped leaves enhance the shape of the clump.
Soil choice is essential for Caucasian forget-me-not 'Frostbite': kept moist, clayey. The preferred exposure is semi-shade to shade. For Caucasian forget-me-not 'Frostbite', regularly check the soil around the root ball: it must remain fresh. Water at the base when the surface begins to dry and adjust watering according to rainfall; this exposure (semi-shade to shade) does not eliminate water requirements. A spacing of about 40 cm between centers is a starting point, to be adjusted according to observed vigor. The indicated hardiness zone is 3, to be evaluated according to your garden's conditions.
In a planting of Caucasian forget-me-not 'Frostbite', maintain freshness around the base and remove damaged leaves to highlight new shoots. The leaves of Caucasian forget-me-not can suffer from scorching sun and root competition from large trees. For associations, consider tiarella, hostas, and astilbes in varieties with similar needs. Keep its 25 cm height in mind to place lower plants on the right side and allow the flowers to be visible during April-May.
Planting guide
From planting to establishment.
Spacing / density
15.75 in
Best planting time
Spring after the thaw or early autumn, allowing the roots to establish themselves before the severe cold sets in.
Propagation
Division of clumps. Sowing does not guarantee the fidelity of a named cultivar.
Growing method
Caucasian Forget-Me-Not 'Frostbite': Spring after the thaw or early autumn, allowing time for roots to establish before severe cold. For Caucasian Forget-Me-Not 'Frostbite', regularly check the soil around the root ball: it must remain moist. Water at the base when the surface begins to dry and adjust watering according to rainfall; this exposure (partial to full shade) does not eliminate water requirements. The leaves of Caucasian Forget-Me-Not can suffer from scorching sun and root competition from large trees.
Soil and care
The right care,at the right time.
Soil pH
Acid to neutral to alkaline; general indication of the botanical group
Care level
Regular maintenance
Watering
For Caucasian forget-me-not 'Frostbite', regularly check the soil around the root ball: it must remain moist. Water at the base when the surface begins to dry out and adjust the watering according to rainfall; this exposure (partial to full shade) does not eliminate the need for water.
Soil type
Kept damp, Clayey
Fertilization
Fertilizer for flowering
Moisture
Regular freshness during growth
Seasonal care
Brunnera ‘Frostbite’: keep the ground cool around the base and remove damaged leaves to highlight new growth. During its flowering period (April-May), also watch out for damaged stems and neighbouring plants that could overshadow the clump.
Container growing
A garden,within reach.
Recommended pot size
Stable, perforated container, significantly wider than the root ball; size to be adapted to the format sold and the adult development.
To try Caucasian Forget-Me-Not 'Frostbite' in a container, choose a well-drained, stable pot suitable for the root ball and its future size (40 cm). The substrate must remain moist; it will dry out faster than in the ground. Plan to protect the container in winter depending on your climate.
Bloom and dimensions
Its place,in your garden.
Mature height
10 inches (25.5 cm)
Width / spread
15 inches (38 cm)
Flower color
White
Foliage color
Green
Growth rate
Moderate
Growth habit
In rosette
Fragrance
Undocumented for this selection
Bloom period
April-May
Garden associations
In goodcompany.
Companion plants
Companion plants to consider for Caucasian Forget-me-not ‘Frostbite’: foamflowers, hostas, astilbes. Choose varieties that tolerate partial to full shade and comparable moisture; allow enough space for each clump to reach its mature size.
Plants to avoid
Around Caucasian Forget-Me-Not 'Frostbite', especially avoid neighboring plants that would cover its leaves or strongly compete with its root ball. Compatibility in terms of light, water, and size takes precedence over a list of so-called enemy plants.
Frequently asked questions
Your questions,answered.
Where to plant Siberian Bugloss ‘Frostbite’?
Provide partial to full shade and suitable soil (kept moist, clayey). Caucasian forget-me-not leaves can suffer from scorching sun and root competition from large trees.
Where should I plant Caucasian Forget-Me-Not 'Frostbite'?
Expect it to reach about 25 cm in height and 40 cm in width at maturity. Space plants approximately 40 cm apart (center to center), adjusting based on the actual development of the clump. This size is suitable for use in shady borders.
When does Siberian bugloss ‘Frostbite’ bloom?
The period indicated is April-May. The flower palette is blue. The exact date and duration depend on the climate, the season, and the plant's establishment.
How to water and care for Caucasian Forget-Me-Not 'Frostbite'?
For Caucasian forget-me-not 'Frostbite', regularly check the soil around the root ball: it should remain moist. Water at the base when the surface begins to dry out and adjust the amount according to rainfall; this exposure (partial shade to shade) does not eliminate the need for water. Maintain moisture around the base and remove damaged leaves to highlight new growth.
Can Caucasian Forget-Me-Not 'Frostbite' be grown in pots?
To try Caucasian Forget-Me-Not 'Frostbite' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (40 cm). The substrate must remain moist; it will dry out more quickly than in the ground. Plan to protect the container in winter depending on your climate.
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