
A vigorous catmint with small, tubular, lavender-blue flowers held in clusters of upright stems from June to July and attractive, aromatic, light grey-green foliage.
This tall perennial will form a dense mound that looks wonderful in the middle of a sunny border alongside other blue or silver-leaved plants. Fresh or dried, the leaves make a refreshing and therapeutic tea which is high in vitamin C and has traditionally been used to treat such conditions as nervousness, insomnia, hyperactivity, colds and fevers.
The flowers are highly attractive to bees, and of course, the foliage to cats, who will go mad for it. To prevent them from completely flattening it, insert several twiggy sticks into the centre of the plant.
This tall perennial will form a dense mound that looks wonderful in the middle of a sunny border alongside other blue or silver-leaved plants. Fresh or dried, the leaves make a refreshing and therapeutic tea which is high in vitamin C and has traditionally been used to treat such conditions as nervousness, insomnia, hyperactivity, colds and fevers.
The flowers are highly attractive to bees, and of course, the foliage to cats, who will go mad for it. To prevent them from completely flattening it, insert several twiggy sticks into the centre of the plant.
How to care for Nepeta Six Hills Giant:
Nepeta 'Six Hills Giant' thrives in sunny, well-drained locations with slightly alkaline soil and should be planted with plenty of well-rotted organic matter into the backfill and immediate area.
To encourage a second flush of blooms, prune it by one-third after the first flowering and cut back heavily in late winter to maintain its shape. Regular deadheading will promote continuous flowering, and once established, water deeply but infrequently, to assist in developing drought-tolerance.
Apply a light mulch around the base annually and avoid over-fertilising to prevent floppy growth. Divide the plant every 3-4 years to maintain its vigour. Good air circulation is important to prevent fungal (mildew) issues so space plants accordingly - we recommend a spacing of 30cm (12in) between 9cm plants, and 45cm (18in) between 2 litre plants.
To encourage a second flush of blooms, prune it by one-third after the first flowering and cut back heavily in late winter to maintain its shape. Regular deadheading will promote continuous flowering, and once established, water deeply but infrequently, to assist in developing drought-tolerance.
Apply a light mulch around the base annually and avoid over-fertilising to prevent floppy growth. Divide the plant every 3-4 years to maintain its vigour. Good air circulation is important to prevent fungal (mildew) issues so space plants accordingly - we recommend a spacing of 30cm (12in) between 9cm plants, and 45cm (18in) between 2 litre plants.
Flowering period:
- Jan
- Feb
- Mar
- Apr
- May
- Jun
- Jul
- Aug
- Sep
- Oct
- Nov
- Dec
Eventual height:
0.9m
Eventual spread:
0.6m
Position:
Full sun / light shade
Rate of growth:
Average
Soil:
Moderately fertile, moist, well-drained soil
Hardiness:
Fully hardy
-
This perennial dies back to below ground level each year in autumn, then fresh new growth appears again in spring.
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Goes well with
Salvia × sylvestris 'Mainacht'
sage ( syn. Salvia May Night )
From £9.99
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2 litre pot | £17.99 |
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3 × 2 litre pots | £44.99 |
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9cm pot | £9.99 |
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3 × 9cm pots | £19.99 |
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