Walker's Low vs Six Hills Giant catmint
Two of the most planted catmints, both with lavender-blue flowers from late spring that come again if the plant is sheared back after the first flush. 'Walker's Low' is not especially low: it is named after a garden, and grows about two feet tall. 'Six Hills Giant' is bigger again, about three feet, a billowing mound for a big border and the bare legs of roses; 'Walker's Low' suits an edging or a smaller bed.
 Catmint 'Walker's Low'Nepeta x faassenii |  Catmint 'Six Hills Giant'Nepeta 'Six Hills Giant' | |
|---|---|---|
| Size | 24 in tall, 2½ ft wide | 3 ft tall, 3 ft wide |
| Plant | 24 in apart | 2½ ft apart |
| Zones | 4 to 8 | 4 to 8 |
| Light | Full sun | Full sun |
| Soil | Dry and sharply drained, lean fertility | Dry and sharply drained, average fertility |
| Flowers | Mid May to mid September; lavender | Late May to early September; lavender |
| Leaves | Fine, herbaceous | Fine, herbaceous |
| Job in a bed | Edging | Drift |
| Pets | No toxicity recorded | No toxicity recorded |
| Deer | No record | No record |
| Native | No | No |
| Spread | Low risk | Low risk |
Rows where they differ are marked. Flowering times are for zone 5.
Which to choose
- Choose catmint 'Walker's Low' for a smaller space (24 in against 3 ft).
- Choose catmint 'Six Hills Giant' for more height (3 ft against 24 in).
Can they grow together?
Yes: they grow in the same conditions. What catmint 'Six Hills Giant' brings beside catmint 'Walker's Low': in flower together for 16 weeks, from late May; a low mound at the foot of its spires; happy in the same dry soil. They share full sun and zones 4 to 8.
Read more: all about catmint 'Walker's Low', and all about catmint 'Six Hills Giant', each with a bed the planner designed around it.