Thompson & Morgan Cauliflower White Step F1 Hybrid - 30 Seeds

For an autumn harvest, transplant seedlings into their final growing position in early to mid-summer (June or July). Ensure they are hardened off and protected from any late frosts.

The mature plant has a spread of about 45cm (18"). For smaller, portion-sized heads, you can plant them closer, around 30cm (12") apart. For slightly larger heads, space them at 45cm (18").

Yes, 'White Step' is a compact variety and is well-suited for growing in large containers or pots, provided they are deep enough and offer good drainage, and the plant receives full sun.

Half-hardy means the plant can withstand light frost but will be damaged or killed by severe freezing temperatures. Young plants may need protection during cold spells.

Harvest from late September onwards. The curds should be fully mature, firm, and tightly packed. Check regularly as they mature.

This is often due to environmental stress such as insufficient water, extreme heat, or being planted too early or too late, leading to buttoning. Consistent care is key.

'White Step' has good heat tolerance, which is an advantage in warmer climates. However, ensuring consistent watering and providing some afternoon shade during extreme heatwaves can further improve results.

This is often caused by stress from drought, inconsistent watering, or exposure to cold temperatures. Ensure regular watering and transplant in suitable weather conditions.

Inconsistent watering or heat stress can cause loose curds. Maintain consistent moisture and provide shade during extreme heat if possible.

This can indicate a lack of nutrients. Ensure the soil is fertile, or consider a balanced liquid feed if plants appear deficient.

Regularly inspect plants. Use companion planting (nasturtiums, mint) or physical barriers. Handpick larger pests. Organic pest control sprays may be used if necessary.