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Long Island Improved Brussel Sprout

Long Island Improved Brussel Sprout

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Long Island Improved Brussel Sprout Seeds (85-115 days)

Originating around the 1890s

Long Island Improved is still the most popular variety even though it is sometimes mistaken for the "Catskill" strain developed by Arthur White of Arkport, NY in 1941. 

Long Island Improved is a much older variety even though the two are similar. 

Semi-dwarf plants are 20-24" high, with excellent yields of 1-2" flavorful brussel sprouts.  This is a good variety to freeze.

Recommended by the Following State Universities or Ag Extension Offices as a variety that performs well for their region. CA, IL,


Seed Planting Depth

Seeds per gram

Germination Temperature

Days to Germination

Row Spacing

Plant Spacing

100' Row Yield


1/4" 270 55-70 5-10 24" 15-18" 65 lb. Full

Planting Tips:

Start spring seedlings 4-5 weeks before transplanting.  Start fall transplants 2-3 months before first frost.  Transplant out to the garden when 3” tall at least 90 days before your first frost in midsummer.  When transplanting, enrich soil with a little blood and bone meal.  Needs cool temperatures to head properly – will bolt in heat.  Keeping soil evenly moist is a must for a healthy crop.

Heirloom seeds are hardy but always take care with your garden seeds to give them the appropriate amount of moisture - not letting the vegetable seeds dry out prematurely or overwatering and possibly having them rot.


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