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B&Q£5.99Visit shop B&Q - Broccoli Seeds 'claret' F1 Hybrid Extra-Large Spring Spears 90 Seeds
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Broccoli 'Claret' F1 Hybrid seeds from Marshalls Garden are for home gardeners seeking a reliable, high-yield crop of large, succulent broccoli spears. The key benefit is its vigorous habit, requiring fewer plants for the same yield and performing well even on poorer soils. A potential consideration is its specific F1 hybrid nature, which means seeds saved from this harvest will not produce true-to-type plants in subsequent seasons. This variety offers an RHS Award of Garden Merit-winning performance with excellent color and flavor, rich in vitamins and iron, with a harvest window from mid-April for up to four weeks.
| Model Part Number | 10202120 |
|---|---|
| Brand | Marshalls Garden |
You can start seeds indoors from early spring (approx. 4-6 weeks before the last frost) or sow directly outdoors in spring once the soil has warmed and the risk of hard frost has passed.
Due to its vigorous habit, allow ample space. Aim for planting seeds or seedlings about 45-60cm apart to ensure good head development.
Yes, with adequate container size (at least 30cm deep and wide) and consistent watering, Broccoli 'Claret' F1 can be grown successfully in large containers.
Its key benefits include a vigorous habit requiring fewer plants, large succulent spears, good performance on varied soils, and high nutritional content. It is also an RHS Award of Garden Merit winner.
F1 hybrid seeds are the result of crossing two distinct parent varieties. While they offer strong, uniform traits, seeds saved from the resulting harvest will typically revert to the characteristics of the parent plants, not producing the same F1 hybrid result.
The harvest window begins from mid-April and can continue for up to four weeks, depending on growing conditions and timely harvesting of the main head.
While the seeds themselves are untreated, successful organic growing relies on managing pests and soil fertility through organic methods such as companion planting, natural pest deterrents, and composting.
Ensure seeds are sown at the correct depth (approx. 1cm) and the soil is kept consistently moist and warm (ideal germination temperature is around 15-20°C).
This can be due to insufficient nutrients, inconsistent watering, or overcrowding. Ensure adequate spacing, consistent moisture, and consider a balanced feed.
This is often caused by uneven watering, especially after a dry spell. Maintain consistent soil moisture to prevent rapid growth spurts that can split the head.
Bolting is often triggered by stress from cold snaps, heat, or inconsistent watering. Ensure young plants are hardened off properly before transplanting and maintain even conditions.
Sowing: Start seeds indoors in modules or pots about 4-6 weeks before the last expected frost, or sow directly into the garden when the soil has warmed and the risk of frost has passed. Sow seeds about 1cm deep.
Planting Out: Transplant seedlings into their final growing position when they have developed 4-5 true leaves. Ensure plants are spaced adequately, typically 45-60cm apart, to allow for their vigorous growth.
Soil Requirements: Prefers well-drained soil that is reasonably fertile. 'Claret' F1 is notably tolerant of poorer soils and performs well on neutral to alkaline conditions.
Watering: Consistent moisture is key, especially during dry spells, to prevent bolting and ensure good head development. Water at the base of the plant to keep foliage dry.
Feeding: While adaptable, a balanced fertilizer applied at planting and again when the heads begin to form can enhance growth and yield.
Pest and Disease: Monitor for common brassica pests like cabbage white caterpillars and aphids. Companion planting or netting can help deter pests. Ensure good air circulation to minimize fungal diseases.
