An extra early bloomer with tall stately inflorescences of bell-shaped blooms accented with spotted throats.
An extra early bloomer with tall stately inflorescences of bell-shaped blooms accented with spotted throats. Colours include pink, rose, purple, cream, primrose and white. Performs well in sun or partial shade. Matures to 1.5 m (5') height in the second year. Prefers wind sheltered locations with full sun in moist soils or partial shade in drier locations. Excelsior is a freely reseeding biennial hardy to Zone 4. Note: Seeds and plants are considered toxic.
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How To Grow
4600 seeds/gram. Native to the Mediterranean. Although considered a biennial, it reseeds so freely once established, it is a permanent fixture in the garden. Start seeds indoors in a soil-less mix in February or March for a chance at first year flowering. Germinate at 20 C (70 F) then grow on under lights at a slightly cooler temperature before hardening off and planting in the garden in a sheltered site. Seed can be directly sown in May and June and again in mid-August to mid-September for flowering in the following year.
Blooming Season Begins
Start Indoors or Sow Direct in Spring or Late Summer
Days to Emergence
10 to 15
Tall %28120 to 150 cm%29%2848%22 to 60%22%29
Degree of Difficulty
Plantaginaceae (or Scrophulariaceae)
Great for vertical colour.
Stately accent or back of the border plant.
Massing in semi shaded sites.