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Hardy perennial
Lamiaceae
Perennials
Catmint ‘Whispurr Blue’
Catnip
Nepeta 'Whispurr Blue': 71 cm high and 56 cm spread, full sun. Blue, lavender flowers in June-September. Zone 4; choose soil compatible with its moisture needs.
- Exposure
- Sun
- Life cycle
- Hardy perennial
- Hardiness
- Zone 4
Discover the plant
Common nameCatmint ‘Whispurr Blue’
FamilyLamiaceae
GenusCatnip
CultivarWhispurr Blue
TypeHardy perennial
Botanical nameCatnip
The silhouette of Catmint ‘Whispurr Blue’ (Nepeta ‘Whispurr Blue’) adds dimension to garden compositions. Among its distinctive features: aromatic foliage. The foliage displays shades of green, to be highlighted among different textures. The usual flowering period is June-September. Its size of 71 cm by 56 cm reserves a place for it in the middle of flowerbeds and group plantings, without forgetting the space for its neighbors. The leaf margins contribute to the contrast and deserve a visible place from the pathway.
As for cultivation, Catmint ‘Whispurr Blue’ appreciates a sunny exposure; the recommended soil is well-drained, rather light; avoid water pockets around the crown. After planting Catmint ‘Whispurr Blue’, water enough to thoroughly moisten the root ball. Once established, allow the surface to dry between waterings and prioritize drainage, especially during mild spells. Keep 56 cm as a general spacing between plants; this helps preserve their shape and access for care. The indicated hardiness level is zone 4, to be assessed according to your garden's conditions.
To maintain the appeal of Catmint ‘Whispurr Blue’ after flowering, a light pruning after the first flush of flowers helps renew its appearance; however, monitor the watering of young plants. Catmint maintains a firmer silhouette with plenty of light and without abundant fertilization. For associations, consider yarrows, border sages, upright sedums in varieties with similar needs. Keep its 71 cm height in mind to place lower plants on the right side and allow the flowers to be visible during June-September.
Planting guide
From planting to establishment.
Spacing / density
56 cm
Best planting time
Spring after the thaw or early autumn, allowing time for the roots to settle before the severe cold.
Propagation
Division of clumps. Sowing does not guarantee the fidelity of a named cultivar.
Growing method
Catmint ‘Whispurr Blue’: Spring after the thaw or early autumn, allowing the roots to settle before the severe cold. After planting Catmint ‘Whispurr Blue’, water enough to thoroughly moisten the root ball. Once rooted, let the surface dry between waterings and prioritize drainage, especially during thaws. Catmint maintains a more compact shape with plenty of light and without abundant fertilization.
Soil and care
The right care,at the right time.
Care level
Routine maintenance
Watering
After planting Nepeta 'Whispurr Blue', water enough to thoroughly moisten the root ball. Once established, allow the surface to dry out between waterings and prioritize drainage, especially during thaws.
Soil type
Draining, rather light; avoid water pockets around the collar
Fertilization
Fertilizer for flowering
Moisture
Low to medium after establishment; drainage priority
Seasonal care
Catmint 'Whispurr Blue': light pruning after the first flush of flowers helps refresh its appearance; however, monitor the watering of young plants. During its flowering period (June-September), also look out for damaged stems and neighboring plants that might obscure 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 to the adult development.
To try Nepeta 'Whispurr Blue' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (56 cm). Water must drain freely after each watering; check the root ball more often than if 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
28 inches (71 cm)
Width / spread
22 inches (56 cm)
Flower color
Blue
Foliage color
Green
Foliage type
Lapsed
Growth rate
Fast
Growth habit
Erected
Fragrance
Aromatic foliage
Bloom period
June-September
Garden associations
In goodcompany.
Companion plants
Companion plants for Nepeta 'Whispurr Blue' include yarrows, border salvias, and upright sedums. Choose varieties that tolerate sun and comparable moisture levels; allow each clump enough space to reach its mature size.
Plants to avoid
Around Nepeta 'Whispurr 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 Nepeta 'Whispurr Blue'?
Provide sun and suitable soil (well-drained, rather light; avoid water pockets around the collar). Catmint maintains a firmer shape with plenty of light and without abundant fertilization.
Where should I plant Nepeta 'Whispurr Blue'?
Expect a height of approximately 71 cm and a width of 56 cm at maturity. Allow about 56 cm between centers, to be adjusted according to the actual development of the clump. This size is suitable for use in the middle of a flowerbed and for group planting.
When does Catmint ‘Whispurr Blue’ bloom?
The indicated period is June-September. The color palette of the flowers is blue, lavender. The exact date and duration depend on the climate, season, and plant's establishment.
How to water and care for Nepeta 'Whispurr Blue'?
After planting Nepeta ‘Whispurr Blue’, water enough to thoroughly moisten the root ball. Once established, allow the surface to dry out between waterings and prioritize drainage, especially during warm spells. A light pruning after the first flush of flowers helps refresh its appearance; however, monitor the watering of young plants.
Can Nepeta 'Whispurr Blue' be grown in a pot?
To try Nepeta 'Whispurr Blue' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (56 cm). Water must drain freely after each watering; check the root ball more often than if it were planted directly in the ground. Plan to protect the container in winter depending on your climate.
Wildlife and pets
Life,around your plants.
Supporting wildlife
Nepeta 'Whispurr Blue' flowers attract pollinating insects. To preserve these visits from June to September, avoid treating open flowers and ensure a succession of blooms around the plant.
For your perennials and grasses
The right extras.Right here.
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