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
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: Bupleurum
Hare's Ear (Bupleurum Rotundifolium Griffithii) - Bupleurum seeds grow quickly and easily to produce this annual for the cutting garden. 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 the Bupleurum seeds in the flower garden or ahead of time indoors. When transplanting, space the Hare's Ear 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, commonly called Hare's Ear, is a great complement to 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 addition. Hare's Ear Bupleurum can grow as a perennial in frost free zones.