How to Grow Hardy Annuals for Cutting
Annual
A hardy annual cutting patch is one of the simplest ways to fill vases from late spring onwards. Cornflowers, poppies, larkspur and love-in-a-mist grow quickly from direct sowing, enjoy cool spring conditions and make a charming, natural-looking mix. Successional sowing keeps fresh stems coming through the season.
Planting
Prepare a sunny, weed-free bed with raked, level soil. Sow cornflowers, annual poppies, larkspur and love-in-a-mist directly from March to May, scattering thinly or sowing in short drills. Cover larger seed lightly, but press very fine poppy seed onto the surface. Thin seedlings to 15 to 30 cm, depending on variety. Sow again every 3 to 4 weeks until June for a longer harvest. In cold northern or Scottish gardens, begin when soil is workable and not waterlogged.
Care
Water seedlings gently until established, then only during prolonged dry spells. Keep the patch weeded so young annuals are not crowded. Stake larkspur and taller cornflowers before they flop. Pick flowers frequently, preferably early in the day, and remove fading blooms if seed heads are not wanted. Leave a few plants to set seed for winter structure or self-sown seedlings.
Bloom time
Spring sowings usually flower from June to August, with later sowings extending into September. Cornflowers may bloom earliest, while poppies and larkspur follow according to weather. In mild areas, autumn-sown hardy annuals can give an earlier display next year.
Garden uses
Grow these annuals in a dedicated cutting patch, a relaxed cottage border or a sunny wildlife area. Cornflowers and love-in-a-mist give useful filler, larkspur adds vertical stems, and poppies create fleeting highlights. Single flowers support insects, while seed heads can be dried or left for garden interest.
Tips
Avoid over-enriching the soil, as lush growth may flop and flower less well. Sow little and often rather than one large batch. Cut poppies as buds begin to show colour, and sear the cut stem briefly in hot water before arranging. Look for AGM selections when available.
Growing Hardy Annuals for Cutting: frequently asked questions
How do I grow hardy annuals for cutting in the UK?
Prepare a sunny, weed-free bed with raked, level soil.
When does hardy annuals for cutting flower?
Spring sowings usually flower from June to August, with later sowings extending into September.
How do I care for hardy annuals for cutting?
Water seedlings gently until established, then only during prolonged dry spells.
General guidance for UK gardens. Timing and hardiness vary by region and season; the RHS or a local garden centre can advise for your area. Page updated 19 Sep 2026.