77 – 84 days. Giant Imperial Mix seeds promise some of the tallest, brightest, and most vivid larkspurs available in any garden. Giant Imperial Mix seeds grow dense and elegant spikes flourishing in a seasonal mix of blue, violet, rose, red, lavender, salmon, pink and white florets. Giant Imperial Mix larkspur is easy to grow from seed and offers full season blooming from spring until the frost. Giant Imperial Mix seeds mature into robust 36 – 48” tall stalks perfect for attracting butterflies or accenting any fresh cut bouquet, basket, or centerpiece.
Growing Giant Imperial Mixture Larkspur Garden Seeds
- Taxonomy: Consolida ambigua
- Other Names: Rocket Larkspur, Doubtful Knight’s Spur
- Seed Type: Annual
- Sow Indoors or Outdoors: Giant Imperial Mix larkspur is very adaptable, easy to grow from seed, and can either be sown indoors or out. For earliest blooms begin 8 – 10 weeks prior to the frost. Larkspur has a wildflower habit and may also be sown by broadcasting directly after the frost. Blend Giant Imperial Mix larkspur seeds with sand to increase visibility during sowing and broadcast mix over a 10-square foot area and evenly rake and lightly tamp into soil. Plants will easily reseed itself and, once established, stick around in your garden for as long as you’ll have it.
- Days to Maturity: 77 – 84 days
- Hardiness Zone: 2 – 11
- Planting Depth: Plant 2 – 3 seeds ½” deep or broadcast directly
- Plant Spacing: 12”
- Growth Habit: 36 – 48” shrubby upright with a 12” spread of dense, robust floreted spikes
- Soil Preference: Organically rich, evenly moist, well-drained
- Light Preference: Full sun
- Diseases/Pests/Troubleshooting: Giant Imperial Mix larkspur is a hardy full sun performer, but will benefit from shade during long summer months. Larkspur is notorious for easily reseeding and, in fact, may overrun some grow spaces. Deadhead spent blooms to prevent abundant reseeding. Larkspur has no serious pests or diseases but monitor regularly for aphids.
- Color: Mix in shades of blue, violet, rose, red, lavender, salmon, pink and white
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Seeds Per Package:
- 500 mg - Approximately 160 Seeds
- 1 oz - Approximately 9,300 Seeds
Giant Imperial Mix larkspur is very adaptable, easy to grow from seed, and can either be sown indoors or out. For earliest blooms begin 8 – 10 weeks prior to the frost. Larkspur has a wildflower habit and may also be sown by broadcasting directly after the frost. Blend Giant Imperial Mix larkspur seeds with sand to increase visibility during sowing and broadcast mix over a 10-square foot area and evenly rake and lightly tamp into soil. Plants will easily reseed itself and, once established, stick around in your garden for as long as you’ll have it. For traditional sowing, plant 2 – 3 Giant Imperial Mix larkspur seeds ½” deep and 12” apart in organically rich, evenly moist, and well-drained soil in full sun. Giant Imperial Mix larkspur is a hardy full sun performer, but will benefit from shade during long summer months. Larkspur is notorious for easily reseeding and, in fact, may overrun some grow spaces. Deadhead spent blooms to prevent abundant reseeding. Larkspur has no serious pests or diseases but monitor regularly for aphids. Giant Imperial Mix larkspur seeds mature in 77 – 84 days as 36 – 48” shrubby uprights with a 12” spread of dense, robust floreted spikes in shades of blue, violet, rose, red, lavender, salmon, pink and white.
Consolida ambigua, or more commonly known as Larkspur, is a member of the Ranunculaceae family and native to cool and temperate regions throughout Europe and western Asia, but has naturalized throughout most of the world in similar climates. Consolida ambigua contains a highly toxic methyllycaconitine alkaloid and is considered very poisonous and harmful if ingested.