Description
Iris laevigata 'Snowdrift' is a white-flowered Japanese water iris with upright, silvery-green leaves. In May and June it produces white flowers with a pale lilac flush at the centre.
'Snowdrift' at a glance
| Botanical name |
Iris laevigata 'Snowdrift' |
| Common name |
Japanese water iris |
| Plant type |
Clump-forming iris; dies back in winter |
| Height and spread |
About 80 cm tall, up to 50 cm wide |
| Flowers |
White with a pale lilac flush at the centre, May and June |
| Position |
Full sun (tolerates light shade) |
| Soil |
Wet, humus-rich, acid to neutral soil or shallow water |
| Pond depth |
0–10 cm of water over the crown |
| Hardiness |
RHS H7 – very hardy (below -20°C) |
| Native to |
Garden form of an East Asian iris (not UK native) |
Can it grow in water?
Yes. Like other Iris laevigata, it is a true water iris and can stand in shallow water all year, with up to 10 cm over the crown.
Where to plant it
- A sunny pond shelf, 0–10 cm deep
- The wet margins of ponds and streams
- Next to blue or purple irises for contrast
Is it good for wildlife?
The upright leaves help dragonflies climb out of the water and give cover to pond animals.
Is it poisonous?
Yes. Irises are harmful if eaten by people or pets, so wear gloves when handling it.
Which size should I buy?
Bare-root plants (7 cm, 9 cm, 1 litre and 3 litre) arrive without a pot or compost and are the most economical way to plant a group. Potted plants (9 cm, 1 litre and 3 litre) arrive growing in our peat-free compost and give a faster display. Packs of 3 come in 7 cm, 9 cm, 1 litre and 3 litre bare-root sizes and cost less per plant. The 2x Pot & Compost option is two plants supplied with pots and compost.
