Bupleurum ‘Griffithi’
Bupleurum rotundifolium
Description
The bright chartreuse blooms of this easy-to-grow filler add sparkle and interest to early summer arrangements. I love to combine the airy stems with brilliant jewel tones or simple clean whites and greens. For an extended harvest, sow successions of seeds every 2 to 3 weeks.
Details
Plant type: hardy annual
Height: 36 to 40 in
Site: full sun
Days to maturity: 80 to 90 days
Plant spacing: 6 to 9 in
Pinch: do not pinch
Height: 36 to 40 in
Site: full sun
Days to maturity: 80 to 90 days
Plant spacing: 6 to 9 in
Pinch: do not pinch
Seed Sowing & Growing Notes
In mild areas, seed can be sown directly into the garden in the fall. Everywhere else, direct-seed into the garden 6 weeks before last frost. Seed can be tricky to start indoors, so pop seeds into the freezer for 10 to 14 days before sowing to speed up germination. Don’t pinch plants.
Harvesting/Vase Life
Harvest when flowers are fully open to avoid wilting. Expect a vase life of 8 to 10 days.
Details
Description
The bright chartreuse blooms of this easy-to-grow filler add sparkle and interest to early summer arrangements. I love to combine the airy stems with brilliant jewel tones or simple clean whites and greens. For an extended harvest, sow successions of seeds every 2 to 3 weeks.
Details
Plant type: hardy annual
Height: 36 to 40 in
Site: full sun
Days to maturity: 80 to 90 days
Plant spacing: 6 to 9 in
Pinch: do not pinch
Height: 36 to 40 in
Site: full sun
Days to maturity: 80 to 90 days
Plant spacing: 6 to 9 in
Pinch: do not pinch
Seed Sowing & Growing Notes
In mild areas, seed can be sown directly into the garden in the fall. Everywhere else, direct-seed into the garden 6 weeks before last frost. Seed can be tricky to start indoors, so pop seeds into the freezer for 10 to 14 days before sowing to speed up germination. Don’t pinch plants.
Harvesting/Vase Life
Harvest when flowers are fully open to avoid wilting. Expect a vase life of 8 to 10 days.
Sources
How to Grow
Sources
How to Grow
Seed-Saving Mini Course
Learn how to save seed from zinnia, dahlia, and celosia
In our upcoming free, three-part video series, you’ll learn everything you need to know to save seeds on a home scale, including how plants are pollinated and isolation techniques to ensure varieties come back true, how to tell when plants are ready to pick and how to harvest the seeds, and how to properly dry, clean, and store seeds long term.
