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Cauliflower - Boris F1 Hybrid - Thompson & Morgan - 75017

Not AvailableCauliflower - Boris F1 Hybrid - Thompson & Morgan - 75017
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Sow Cauliflower seed from April to June. Direct sow outdoors into a well-prepared seedbed, for tra...

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This guide is for new gardeners or those seeking a resilient cauliflower variety. The key benefit of Cauliflower 'Boris' F1 Hybrid is its tolerance to various weather and soil conditions, making it beginner-friendly. A potential caveat is that yields can vary based on specific growing environments. This packet contains approximately 15 seeds for cultivating 'Boris' F1 Hybrid cauliflower, known for its vigorous growth, tidy habit, and ability to produce large, well-held curds.

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Model Part Number75017
BrandThompson & Morgan

Extended Product Information

FAQs

When is the best time to sow Cauliflower 'Boris' seeds?

You can sow seeds from April to June. For an earlier start, sow indoors from late winter/early spring. Direct sowing outdoors can commence in spring.

How much space do the plants need?

For smaller 'baby' heads, space plants 25cm (10") apart. For larger heads, space them 60cm (24") apart.

Can I grow this in any soil type?

While 'Boris' is tolerant, it performs best in firm, rich, fertile, and well-drained soil. Adding well-rotted manure in early spring is highly recommended. Lime acidic soils.

How long does it take for the cauliflower to mature?

Plants can be transplanted outdoors about 5 weeks after sowing. The harvest period typically runs from June to September, depending on sowing time.

What are the main pests to watch out for?

Common pests include birds and insects, which can be deterred with protective netting or fleece. Keep an eye out for cabbage root fly and aphids.

Will this variety tolerate frost?

Seedlings should be hardened off and transplanted outdoors only after all risk of frost has passed. The mature plants are relatively hardy but young seedlings are vulnerable.

What is the typical yield from one packet?

Each packet contains approximately 15 seeds. The actual number of plants that mature into harvestable cauliflowers depends on growing conditions, success rates, and spacing.

Troubleshooting

Seeds fail to germinate

Ensure consistent temperature (around 21°C) and adequate moisture. Check that seeds are not sown too deep or too shallow.

Plants are leggy and weak

Provide adequate light and cooler conditions for seedlings after germination. Ensure sufficient spacing when transplanting.

Small or underdeveloped curds

Ensure consistent watering and adequate soil fertility. Protect plants from extreme heat or stress.

Yellowing leaves

This could be due to nutrient deficiency or waterlogging. Ensure well-drained soil and consider a balanced liquid feed if necessary.

Clubroot symptoms (swollen roots)

Ensure soil pH is neutral or slightly alkaline by applying lime to acidic soils before planting.

Pros and Cons

Pros

  • Highly tolerant to various weather conditions.
  • Suitable for novice gardeners due to its forgiving nature.
  • Produces large, high-quality cauliflower heads.
  • Manages well in the garden with upright foliage.
  • Offers a continuous harvest if sown successively.

Cons

  • Requires consistent moisture to prevent bolting or poor curd development.
  • Susceptible to common brassica pests like cabbage root fly and aphids.
  • Best results achieved with well-prepared, fertile soil.
  • Images shown are for guidance; actual results may vary.

Setup, Compatibility & Care

Sowing Indoors (Recommended for earlier start):

  1. Sow seeds 1cm (1/2") deep in trays filled with free-draining seed compost.
  2. Cover with a light sprinkling of vermiculite.
  3. Place in a propagator or seal the container in a plastic bag.
  4. Maintain a temperature of 21°C (70°F) until germination, which typically takes 4-7 days.
  5. Transplant seedlings into 7.5cm (3") pots once large enough.
  6. Grow on in cooler conditions until the risk of frost has passed.
  7. Gradually acclimatise plants to outdoor conditions over 7-10 days.

Direct Sowing Outdoors:

  1. Sow seeds from April to June into a well-prepared seedbed.
  2. Sow at a depth of 1cm (1/2") and 30cm (12") between rows.
  3. Transplant seedlings to their final positions approximately 5 weeks after sowing.

Planting Outdoors:

  1. Choose a sheltered position in full sun.
  2. Prepare the soil in early spring by incorporating well-rotted farmyard manure for fertility and structure.
  3. Apply lime to acidic soils to reduce acidity and minimize the risk of clubroot.
  4. Space plants 25cm (10") apart for smaller heads or 60cm (24") apart for larger heads.

Care:

  • Watering: Keep soil consistently moist, especially during curd formation.
  • Protection: Cover plants with netting or fleece to deter birds and insects.
  • Weeding: Keep the area around the plants free from weeds.

Compatibility:

  • This variety is suitable for most soil types, provided they are well-drained and fertile.
  • It thrives in full sun.

Harvesting:

  • Harvest period is from June to September.
  • Harvest when the curds are firm and well-formed.