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Hardy perennial
Brassicaceae
Perennials
Aubrieta 'Rock On Blue'
Aubrieta
Aubrieta 'Rock On Blue': 10 cm high and 20 cm spread, sun to partial shade. Blue flowers in April. Zone 3; choose a soil compatible with its moisture needs.
- Exposure
- Sun to partial shade
- Life cycle
- Hardy perennial
- Hardiness
- Zone 3
Discover the plant
Common nameAubrieta 'Rock On Blue'
FamilyBrassicaceae
GenusAubrieta
CultivarRock On Blue
TypeHardy perennial
Botanical nameAubrieta
The silhouette of Aubrieta 'Rock On Blue' (Aubrieta 'Rock On Blue') adds dimension to garden compositions. Its foliage displays shades of green, which can be highlighted among different textures. The usual flowering period is in April. Its size of 10 cm by 20 cm reserves it a place at the front and lower edge of a bed, without forgetting the space for its neighbours.
The success of Aubrieta 'Rock On Blue' begins with its location: full sun to partial shade, in suitable soil (well-drained, sandy, calcareous). Support the rooting of Aubrieta 'Rock On Blue' with deep watering, then check the moisture before watering again. Adjust the frequency to rainfall and heat; avoid small daily applications on already moist soil. Keep 20 cm as a guideline between plants; this helps preserve their shape and access for care. The indicated hardiness level is zone 3, to be assessed according to your garden's conditions.
In a planting of Aubrieta 'Rock On Blue', keep the foliage healthy after flowering to allow the plant to continue its growth. Keep the crown clear and observe new growth before removing damaged parts. For associations, consider daylilies, perennial geraniums, and campanulas in varieties with similar needs. By composing around its volume of 10 cm by 20 cm, you will preserve the visibility of its April bloom and allow for circulation between the plants.
Planting guide
From planting to establishment.
Spacing / density
20 cm
Best planting time
Spring after the thaw or early autumn, allowing time for the roots to establish themselves before the cold weather sets in.
Growing method
Aubrieta ‘Rock On Blue’: Spring after the thaw or early autumn, allowing the roots to establish themselves before the severe cold. Support the rooting of Aubrieta ‘Rock On Blue’ with deep watering, then check the moisture level before watering again. Adjust the frequency according to rain and heat; avoid small daily waterings on already moist soil. Keep the root crown clear and observe new growth before removing damaged parts.
Soil and care
The right care,at the right time.
Care level
Routine maintenance
Watering
Support the establishment of Aubrieta 'Rock On Blue' with deep waterings, then check the moisture before watering again. Adjust the frequency according to rain and heat; avoid small daily applications on already moist soil.
Soil type
Well-drained, Sandy, Calcareous
Fertilization
Fertilizer for flowering
Moisture
Moderate humidity; water according to the actual state of the root ball
Seasonal care
Aubrieta ‘Rock On Blue’: keep the foliage healthy after flowering to allow the plant to continue growing. During its flowering period (April), also monitor damaged stems and neighboring plants that could obscure the clump.
Container growing
A garden,within reach.
Recommended pot size
Stable and perforated container, significantly wider than the root ball; dimensions to be adapted to the format sold and the adult development.
To try Aubrieta 'Rock On Blue' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (20 cm). Water must drain freely after each watering; check the root ball more often than if it were planted 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 cm
Width / spread
8 inches (20.5 cm)
Flower color
Blue
Foliage color
Green
Growth rate
Fast
Growth habit
Erected
Fragrance
Not documented for this selection
Bloom period
April
Garden associations
In goodcompany.
Companion plants
Companion plants for Aubrieta 'Rock On Blue': daylilies, perennial geraniums, campanulas. Choose varieties that tolerate sun to partial shade and comparable moisture; allow each clump its mature space.
Plants to avoid
Around Aubrieta 'Rock On Blue', especially avoid neighbors that would cover its leaves or strongly compete with its root ball. Compatibility of light, water, and spread takes precedence over a list of so-called enemy plants.
Frequently asked questions
Your questions,answered.
Where to plant Aubrieta 'Rock On Blue'?
Provide sun to partial shade and suitable soil (well-drained, sandy, chalky). Keep the root collar clear and observe regrowth before removing damaged parts.
What is the best place for Aubrieta 'Rock On Blue'?
Allow approximately 10 cm in height and 20 cm in width at maturity. Approximately 20 cm between centers, to be adjusted according to the actual development of the clump. This size is suitable for use as a low border at the front of a flowerbed.
When does Aubrieta 'Rock On Blue' bloom?
The period indicated is April. The flower color is blue. The exact date and duration depend on the climate, season, and plant establishment.
How to water and care for Aubrieta 'Rock On Blue'?
Help Aubrieta ‘Rock On Blue’ establish itself with deep waterings, then check the moisture before watering again. Adjust the frequency to rainfall and heat; avoid small daily waterings on already moist soil. Keep the foliage healthy after flowering to allow the plant to continue its growth.
Can Aubrieta 'Rock On Blue' be grown in a pot?
To try Aubrieta 'Rock On Blue' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (20 cm). Water should drain freely after each watering; check the root ball more often than if it were planted in the ground. Plan for container protection in winter depending on your climate.
Wildlife and pets
Life,around your plants.
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