Roodnerf Brussels Sprouts
100 days. One of the last open pollinated varieties in existence that still retains excellent eating quality and uniformity. Bred in Hurst, England, Roodnerf is quite cold hardy. The medium to tall plants yield plump, green sprouts. If you've turned up your nose to Brussels sprouts in the past, Roodnerf will certainly turn you into a fan!
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|Soil Temp for Germ.||Days to Emergence||Seed Depth||Thin Plants To||Seed Spacing||Row Spacing||Min. Germ.||Seed Life||Seeds per 1/4 gram||Fertilizer Needs|
|55-75°F||5-17||1/4"||24"||4-6"||18-36"||75%||3-4 years||≈ 60-85||High|
Brassica oleracea, Gemmifera Group These mini cabbage look-alikes are packed with health-promoting goodness. Just over a cup of these flavorful 'buttons' contain nearly 150% of the RDA of vitamin K. They're also loaded with dietary fiber and the metabolite, indole-3-carbinol, an effective immune regulator, anti-bacterial & anti-viral agent.
Days to maturity are calculated from date of transplanting; add 25-35 days if direct seeding.
• Brussels sprouts perform best in cool weather and in fertile, well drained soils
• Proper timing is needed in order to grow large mature plants, which then develop buds during cooler fall weather
• Provide plants consistent, even water (1 inch per week) and regular applications of fertilizer throughout the growing season
• Not recommended
• Start indoors 4-6 weeks before your anticipated transplant date
• At transplant, work in 1/2 cup of TSC's Complete fertilizer around the base of each plant
• Fertilize every 10-14 days with a mild fertilizer solution, like Age Old Grow
Insects & Diseases
• Common insects: See Brassica Insect Information below
• Disease prevention: 5-7 year crop rotation
Harvest & Storage
• Brussels sprouts are best after a couple of frosts
• Mature buds should be 1-1 1/2 inch, firm and well formed
• Begin picking sprouts from the bottom; upper sprouts will continue to mature as lower ones are harvested
• Alternatively, you can mature the entire stalk by cutting off the top at the growing point when sprouts are present throughout and bottom sprouts are 1/2 inch in diameter; sprouts will mature within a couple weeks
• Store at 36°F and 100% relative humidity
Brassica Insect Information
Aphids: Control aphids with ladybugs, or a hard spray of water, Azatrol, Neem oil or Pyrethrin. Also, select varieties that mature later in the season when aphid populations decline.
Cabbage worms, loopers, and root maggots: The first sign of cabbage worms will be off-white butterflies fluttering near the plants. They lay their yellowish-colored eggs on the undersides of leaves, which hatch into caterpillars that can cause severe root and head damage. To control light infestations, spray plants with Bacillus thuringiensis (B.t.). For heavy infestations, bait cabbage worms by mixing wheat bran into a B.t. solution. Add 1 tablespoon of molasses. Broadcast the bran mixture around the base of plants. Reapply as necessary. Using Reemay or Grow Guard 20 can also provide control.
Flea beetles: Flea beetles chew tiny pinholes in leaves. Early control is essential to minimize the damage. Spray infected plants with Pyrethrin. Using floating row covers such as Summer Insect Barrier can also provide control.
Symphylans: In some areas of the US, symphylans (also known as garden centipede) can severely impede the plant growth of many crops. Only 1/4 inch long, white, and very active, they eat the root hairs of developing plants. Using larger transplants helps reduce damage. Contact your local county extension agent if you suspect you have a problem.