Indoors, sow seed in 7.5cm (3″) pots or trays of free-draining, seed sowing compost and cover with a 6mm (1/4″) layer of vermiculite. Place in a propagator or seal container inside a plastic bag at a temperature of 15C (60F) until germination which takes around 7 days. Once germinated, grow Brussels Sprouts on in cooler conditions until all risk of frost has passed and plants are large enough to be transplanted.
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• Thin to the strongest plant when 4-5 inches
Insects & Diseases
• Common insects: Onion thrips and maggots
• Insect control: Pyrethrin or Predatory Nematodes
• Common diseases: Fusarium basal rot, pink root
• Disease prevention: 5-7 year crop rotation
Allium cepa Days to maturity are calculated from date of direct seeding.
Harvest & Storage
• For scallions: harvest when pencil size or larger, wash and trim roots, store in a bag at 36°F and 95% relative humidity
• As bulbs approach maturity, withhold water so protective paper can form
• After about half the tops have fallen, push over the remainder; wait about 1 week then harvest
• Cure in a warm (75-80°F), shaded, well-ventilated location until outer skin and necks are dry, then trim tops, leaving one inch above the bulb
• Store in a cool, dry, well-ventilated area
• Check occasionally and immediately remove any sprouting or rotting onions
• Onions are photoperiodic plants — they regulate their stages of growth by day length
• Onions will make top growth until the critical light duration is reached, then bulbing begins
• The amount of growth and development prior to bulbing will determine the bulb size
• Long-day varieties do well in northern states where summertime day length is between 14-16 hours
• Short-day varieties do well in southern states and bulb when day length is 10-12 hours; they won’t get very large in northern states
• Dividing line between short-day and long-day varieties is generally accepted as 36° latitude, roughly along the Kansas/Oklahoma border
• Day-neutral and intermediate-day varieties start bulbing when day length is 12-14 hours; can be successfully grown anywhere
• Onions prefer light, sandy, loamy soils
• Apply 1/4-1/2 cup of TSC’s Complete fertilizer per 5 row feet, 1-2 inches below transplant or seed
The key to cooking Brussels sprouts is in not overcooking them. The leaves cook faster than the core, so cut an X in the bottom of the stem. Depending on size, cooking time should not exceed 7 to 10 minutes whether you are steaming, braising or boiling. Select sprouts of even size for uniform cooking. Large sprouts should be cut in half.
Prepare the site :
All brassica crops grow best in partial-shade, in firm, fertile, free-draining soil. Start digging over your soil in autumn, removing any stones you find and working in plenty of well-rotted manure or compost. Tread on the soil to remove any air pockets and make the surface very firm. Brassicas will fail if the soil is too acidic so add lime to the soil if necessary, aiming for a pH of 6.5-7.5.
Red Bull matures over a long period and the sprouts remain in good condition for many weeks. Harvest November through to January from a spring sowing. The resulting sprouts are small and tasty, and look gorgeous in the pan and on the plate.
Colourful vegetables always grow into conversation pieces both in the garden and in the kitchen. Red Bull, with its intense colour makes it pretty enough to grow in the winter border, so if you like a mild sprout it would be well worth trying.
How to sow seed:
Sow in spring to harvest in winter or in autumn for harvest in late spring to autumn
Nearly all brassicas should be planted in a seedbed or in modules under glass and then transferred. Sow thinly, as this reduces the amount of future thinning necessary and potential risk from pests. Cover seeds to 1.25cm (¼ to ½ inch) deep and transplant the seedlings when they are about 7cm (3in) tall. Do not allow transplants to become stunted before transplanting. Water the day before moving, and keep well-watered until established. Space plants 60 to 90cm (24 to 36in) apart in the row, or 60cm (24in) in all directions in beds.
The small sprouts or buds form heads one to two inches in diameter. They may be picked (or cut) off the stem when they are firm and about one inch in size. The lower sprouts mature first. The lowermost leaves, if they have not been removed already, should be removed when the sprouts are harvested. Harvest sprouts before the leaves yellow when the sprouts are small, compact and bright green. Avoid yellowing sprouts with signs of wilt rot or insect damage. Harvest sprouts when they are no larger than 2.5cm to 4cm (1 to 1½in) in diameter.
The best home preservation method for Brussels sprouts is freezing. As with any vegetable, Brussels sprouts will need to be blanched prior to freezing.
Brussel Sprout ‘Red Bull’ is a specialist sprout variety from Europe, it offers smaller yields of dark red sprouts, but has a milder, delicate, nuttier flavour than standard green types.
The red colour is enhanced with the first light frosts and develops great intensity after a hard frost. It is retained when the sprouts are cooked, steamed or microwaved.
Brassicas are affected by a wide range of pests and diseases. Make sure the soil is adequately limed and well drained. Rotate your crops annually to avoid disease. Don’t grow brassicas on the same plot more often than one year in three, as moving the crop helps avoid the build up of soil pests and diseases.
Apply one side-dress application of nitrogen fertilizer when the plants are 30cm (12in) tall and water to keep the crop growing vigorously during the heat of summer. Without ample soil moisture, the crop fails. Insect control is also very important to keep the plants growing vigorously. Cultivate shallowly around the plants to prevent root damage. The sprouts form in the axis of the leaves (the space between the base of the leaf and the stem above it). About 3 weeks before harvest, the plants may be topped (the growing point removed) to speed the completion of sprout development on the lower-stem area.