An annual root hemi-parasite that requires grass to grow (sow into established grassland, or with grass seed). Yellow flowers, seeds rattle in inflated seed pods. Likes Sun. Height once grown 7-30 cm. Flowers from May – July. Needs a frost to germinate, and therefore must be sown in the Autumn/early Winter, (Aug – Dec inclusive).
When sowing into existing grassland ensure that the grass is mown down to about one inch and maintained at this level until about the start of April. Either tread or roll the area after sowing to ensure the seed is in contact with the soil.
Recommended sowing rate: 1g per square metre.