'Jeffrey Thomas' is a perennial with long, narrow, upright, mid-green clasping leaves, and reaches about 40cm tall. The flowers are pale yellow flushed with darker yellow and appear from late spring to midsummer
0.1-0.5 metres
0.1-0.5 metres
| Season | Stem | Flower | Foliage | Fruit |
|---|---|---|---|---|
| Spring | ||||
| Summer | ||||
| Autumn | ||||
| Winter |
Grow in humus-rich, moderately fertile, moist but well-drained soil. A cool, sheltered site in partial shade is ideal; in very cold areas apply a deep winter mulch. If growing from a tuber, plant 15cm deep
Propagate by division of tubers in spring when growth is starting
Remove faded flowers, the rest of the plant will die down naturally
May be susceptible to vine weevils and slugs
Generally disease-free but a virus may be a problem