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Hardy perennial
Lamiaceae
Perennials
Catmint 'Purrsian Blue'
Catnip
Catmint 'Purrsian Blue': 45 cm high and 75 cm spread, full sun. Blue flowers in June-September. Zone 3; choose soil compatible with its moisture needs.
- Exposure
- Sun
- Life cycle
- Hardy perennial
- Hardiness
- Zone 3
Discover the plant
Common nameCatmint 'Purrsian Blue'
FamilyLamiaceae
GenusCatnip
CultivarPurrsian Blue
TypeHardy perennial
Botanical nameCatnip
Catmint ‘Purrsian Blue’ (Nepeta ‘Purrsian Blue’) features a habit suitable for its use: middle of the border and mass planting. This variety forms an upright, rounded clump with aromatic, slightly textured green foliage that releases a characteristic fragrance when crushed. From June to September, its numerous lavender-blue flower spikes cover the plant and bring a beautiful lightness to sunny garden beds. Reaching approximately 45.5 cm (18 in) in height and 76 cm (30 in) in width, it is very well suited for borders, mass plantings, rock gardens, pollinator gardens, and low-maintenance landscapes. Its prolonged flowering, flexible texture, and ease of cultivation make it a plant of choice for adding color, movement, and naturalness to gardens in Quebec.
In terms of cultivation, Catmint ‘Purrsian Blue’ appreciates full sun exposure; the recommended soil is well-drained, rather light; avoid water pockets around the crown. After planting Catmint ‘Purrsian Blue,’ water enough to thoroughly moisten the root ball. Once established, allow the surface to dry between waterings and prioritize good drainage, especially during thaws. A spacing of approximately 75 cm (30 in) between centers is a starting point, to be adjusted according to observed vigor. The indicated hardiness zone is zone 3, to be appreciated according to your garden's conditions.
Maintenance of Catmint ‘Purrsian Blue’ mainly relies on observing the clump: a light trim after the first flush of flowers helps renew its appearance; however, monitor the watering of young plants. Catmint maintains a firmer habit with plenty of light and without abundant fertilization. For companion planting, consider upright sedums, border salvias, and yarrows in varieties with similar needs. Keep its 45 cm (18 in) height in mind to place lower plants on the right side and allow flowers to be visible during June-September.
Planting guide
From planting to establishment.
Spacing / density
29.5 inches
Best planting time
Spring after the thaw or early autumn, allowing the roots to establish themselves before the severe cold.
Propagation
Dividing clumps
Growing method
Nepeta 'Purrsian Blue': Spring after the thaw or early autumn, allowing the roots time to establish before the severe cold. After planting Nepeta 'Purrsian Blue', water enough to thoroughly moisten the root ball. Once rooted, allow the surface to dry between waterings and prioritize drainage, especially during thaws. Nepeta maintains a firmer shape with plenty of light and without abundant fertilization.
Soil and care
The right care,at the right time.
Soil pH
Neutral to slightly alkaline
Care level
Easy
Watering
After planting Nepeta ‘Purrsian 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 waterlogged areas around the collar
Fertilization
Fertilizer for flowering
Moisture
Low to medium after establishment; priority drainage
Seasonal care
Catmint 'Purrsian Blue': a 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 watch for damaged stems and neighboring plants that might obscure the clump.
Container growing
A garden,within reach.
Recommended pot size
Stable container with drainage holes, noticeably wider than the root ball; size should be adapted to the sold format and adult development.
To try 'Purrsian Blue' catmint in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (75 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
18 inches (45.5 cm)
Width / spread
30 inches (76 cm)
Flower color
Blue
Foliage color
Green
Foliage type
Deciduous, aromatic
Growth rate
Fast
Growth habit
Erected
Fragrance
Aromatic foliage
Bloom period
June-September
Garden associations
In goodcompany.
Companion plants
Companion plants to consider for Nepeta ‘Purrsian Blue’: upright sedums, border salvias, yarrows. Choose varieties that tolerate sun and comparable moisture; allow each clump sufficient adult space.
Plants to avoid
Around Nepeta 'Purrsian Blue', avoid neighbours that would cover its leaves or strongly compete with its rootball. 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 'Purrsian Blue'?
Provide sunlight and well-drained, rather light soil; avoid waterlogged areas around the root collar. Catmint maintains a firmer shape with plenty of light and without excessive fertilization.
Where should I plant Nepeta 'Purrsian Blue'?
Expect it to reach about 45 cm in height and 75 cm in width when mature. Approximately 75 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 plantings.
When does Nepeta 'Purrsian Blue' bloom?
The period indicated is June-September. The flower color palette is blue. The exact date and duration depend on the climate, season, and plant establishment.
How to Water and Care for Nepeta 'Purrsian Blue'?
After planting Nepeta 'Purrsian Blue', water enough to thoroughly moisten the root ball. Once established, allow the surface to dry out between waterings and prioritize good drainage, especially during mild spells. A light pruning after the first flush of flowers helps refresh its appearance; however, monitor the watering of young plants.
Can you grow Nepeta 'Purrsian Blue' in a pot?
To try Nepeta 'Purrsian Blue' in a container, choose a stable pot with drainage holes, suitable for the root ball and its future size (75 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.
Wildlife and pets
Life,around your plants.
Supporting wildlife
Its lavender-blue blossoms attract butterflies and several beneficial pollinating insects throughout the summer. It helps make flowerbeds more vibrant while promoting biodiversity in the garden.
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