Flower Specifications
- Season: Annual
- USDA Zones: 3 - 10
- Height: 24 inches
- Bloom Season: Mid summer to mid fall
- Bloom Color: Yellow
- Environment: Full sun
- Soil Type: Well drained sandy or loamy
Planting Directions
- Temperature: 60 - 65F
- Average Germ Time: 14 - 60 days
- Light Required: Yes
- Depth: Surface sow and cover thinly with 1/8 inch topsoil
- Sowing Rate: 1 - 2 seeds per plant
- Moisture: Keep seeds moist until germination
- Plant Spacing: 12 inches
- Care & Maintenance: See: Bupleurum
Hare's Ear (Bupleurum Rotundifolium Griffithii) - Bupleurum adapts well to growing in many environments. For cut flowers, it is an excellent choice for filler in bouquets. This annual is easy to start from flower seeds, either by sowing seeds in the flower garden or ahead of time indoors. When transplanting, space plants 12 inches apart, being careful not to disturb the roots. For cut flowers, provide support for straighter stems.
Bupleurum rotundifolium 'Griffithii' is an excellent foliage plant with flowers that are green. Bupleurum is a great foil for other flowers and grows to 24 inches tall with a spread of 12 inches. Germination from flower seeds can be erratic, but it is worth sowing as they contrast well with other flowers and are a great bouquet fillers. It can grow as a perennial in frost free zones.