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Description
sweet rocket flower seeds Hesperis matronalis Formula Mix seedsHesperis matronalis Formula Mix Sweet Rocket A classic cottage garden favorite, Hesperis matronalis, also known as Sweet Rocket, offers elegant, fragrant blooms in soft lavender mauve, violet, and white tones. This old fashioned biennial is loved for its tall, airy stems covered in billowy, perfumed flowers that fill the garden and any bouquet with a sweet, candy like scent, especially in the evening. Though technically a short lived perennial, it is
Hesperis matronalis Formula Mix | Sweet Rocket
A classic cottage garden favorite, Hesperis matronalis, also known as Sweet Rocket, offers elegant, fragrant blooms in soft lavender-mauve, violet, and white tones. This old-fashioned biennial is loved for its tall, airy stems covered in billowy, perfumed flowers that fill the garden — and any bouquet — with a sweet, candy-like scent, especially in the evening.
Though technically a short-lived perennial, it is best grown as a biennial for the most reliable flowering from June to September. It's a magnet for pollinators and makes a beautiful filler in both fresh and naturalistic arrangements.
Key Features
- Plant type: Biennial (can be grown as an annual or short-lived perennial)
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Height: 90–120 cm
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Spacing: 30 cm
- Position: Full sun
- Blooming period: June to September
- Fragrance: Strong, sweet scent (especially at dusk)
- Colours in mix: Soft lavender-mauve, violet, white
- Days to maturity: 330–360 days
Sowing & Growing Instructions
- Sow indoors: 3 mm deep in moist, well-drained seed compost in 5 cm pots. Ideal temperature: 15–18°C. Germination in 21–28 days.
- Sow outdoors: May to July, 6 mm deep in raked soil with 30 cm spacing. Firm soil gently and keep moist until germination.
- Timing: Start indoors late spring to early summer; transplant outdoors at least 6 weeks before autumn frost. Plants will bloom the following spring.
No pinching required. Sweet rocket will overwinter and flower reliably the next year.
Harvesting & Vase Life
- Harvest stems when the first few flowers begin to open.
- Stems may continue growing after cutting — allow for this in arrangements.
- Vase life: 5–7 days.
Cultivation Notes
- Easy to grow in average, well-drained garden soil.
- Remove spent flower heads to encourage a second bloom and reduce self-seeding if desired.
- Left uncut, plants will naturalise gently and return year after year.
- Note: Sweet rocket is considered invasive in some areas. Please check local guidelines before planting.
Cultivation Notes
- Easy to grow in average, well-drained garden soil.
- Remove spent flower heads to encourage a second bloom and reduce self-seeding if desired.
- Left uncut, plants will naturalise gently and return year after year.
- Note: Sweet rocket is considered invasive in some areas. Please check local guidelines before planting.
Shipping Notes
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Exchange/Return Notes
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- Final sale items are not eligible for returns or exchanges.
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