Overview
Nepeta grandiflora 'Dawn to Dusk' is a bushy, clump-forming herbaceous perennial in the genus Nepeta, part of the Lamiaceae family, with deciduous, aromatic, grey-green foliage. It typically grows around 0.75 metres tall and 0.3 metres wide. Nepeta grandiflora 'Dawn to Dusk' grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H7. Suggested uses include borders, edging, cottage gardens and pollinator-friendly planting schemes. It is native to Caucasus region.
About
Nepeta grandiflora 'Dawn to Dusk' is a clump-forming, erect deciduous herbaceous perennial in the mint family Lamiaceae. It carries aromatic, slightly hairy grey‑green leaves and produces spikes of purple‑blue flowers. Plants reach about 0.75 m tall by 0.30 m wide at maturity. Flowering occurs from June to September.
About the genus
Nepeta is a genus of flowering plants in the family Lamiaceae. The genus name, from Latin nepeta (“catnip”), is reportedly in reference to Nepete, an ancient Etruscan city. There are 295 accepted species.
Wikipedia contributors, "Nepeta", CC BY-SA 4.0 — Nepeta
In the garden
Nepeta grandiflora 'Dawn to Dusk' is a cultivated selection of Nepeta, a genus in the Lamiaceae originally described from the Caucasus. As a herbaceous perennial it forms upright clumps with aromatic, slightly hairy grey‑green leaves and erect flower spikes that open purple‑blue from June to September. Mature plants are typically around 0.75 m high with a spread near 0.30 m. Position this Nepeta where flower spikes can be seen above neighbouring plants; the species is valued for siting in the middle of a mixed border in a sunny spot. Allow roughly the mature spread between plants to avoid overcrowding. Soil need not be specialised but ensure the crown is planted at the same level as in the nursery container and that drainage is adequate to prevent waterlogging. Routine care is straightforward: remove spent flower heads to keep the clump tidy and, if desired, trim foliage back after flowering to encourage fresh growth. Because it flowers through the summer months, deadheading also helps extend the visual display. Allow established clumps space to reach about 0.30 m so the flower spikes can rise clearly above the grey‑green foliage.
Growing conditions
Best soil and position for Nepeta
- Sunlight
- Full sun
- Soil type
- Loam
- Soil pH
- Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing
- Exposure
- Sheltered
- UK hardiness
- H7
Plant details
Nepeta grandiflora 'Dawn to Dusk' size, habit and characteristics
- Plant type
- Herbaceous perennial
- Habit
- Bushy, Clump-forming
- Foliage
- Deciduous, Aromatic, Grey-green
- Height
- 0.75 metres
- Spread
- 0.3 metres
- Suggested uses
- Borders, Edging, Cottage gardens, Pollinator-friendly planting schemes
- Native to
- Caucasus region
- Fragrance
- Aromatic leaves with a minty scent
Care notes
Pruning and caring for Nepeta grandiflora 'Dawn to Dusk'
- Cultivation
- Prefers well-drained soil in full sun; drought tolerant once established; avoid waterlogging
- Pruning
- Cut back after flowering to maintain shape and encourage fresh growth
- Propagation
- Seed, Softwood cuttings, Semi-ripe cuttings, Division
- Pest resistance
- Slugs, Snails
- Disease resistance
- Powdery mildew
Frequently asked questions
How do I grow Nepeta grandiflora 'Dawn to Dusk'?
Prefers well-drained soil in full sun; drought tolerant once established; avoid waterlogging.
Where is the best place to plant Nepeta grandiflora 'Dawn to Dusk'?
Nepeta grandiflora 'Dawn to Dusk' prefers full sun. It suits sheltered positions.
What soil does Nepeta grandiflora 'Dawn to Dusk' need?
Nepeta grandiflora 'Dawn to Dusk' grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.
How do I prune Nepeta grandiflora 'Dawn to Dusk'?
Cut back after flowering to maintain shape and encourage fresh growth.
How big does Nepeta grandiflora 'Dawn to Dusk' grow?
Nepeta grandiflora 'Dawn to Dusk' reaches a height of 0.75 metres and a spread of 0.3 metres.
Is Nepeta grandiflora 'Dawn to Dusk' hardy in the UK?
Nepeta grandiflora 'Dawn to Dusk' has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Nepeta grandiflora 'Dawn to Dusk'?
Seed, Softwood cuttings, Semi-ripe cuttings, Division.
More in the Nepeta genus
- Nepetacatmint

- Nepeta 'Six Hills Giant'catmint 'Six Hills Giant'

- Nepeta Grandiflora

- Nepeta govanianacatmint

- Nepeta racemosa 'Superba'Dwarf Catnip

- Nepeta × faassenii 'Blue Dwarf' ('Blauknirps')Blue Dwarf Catmint

- Nepeta × faassenii 'Variegata'Variegated Catmint

- Nepeta 'Romany Dusk'