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Brussels Sprouts 'Long Island Improved' Seed Pack

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Growing this vegetable requires good planning and patience. You'll be planting in the summer so sprouts will mature in the cool weather of fall.

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Brussel sprout plants may resemble little palm trees, but this brassica is all about cool weather. For best results, start these Long Island Improved seeds indoors 4 to 6 weeks prior to transplanting outside, and you'll want to do that about 4 months prior to your area's average first fall freeze date. This way, the plants can grow in the summer, but the sprouts will mature when the weather has cooled down. These miniature cabbage-like sprouts get even sweeter when exposed to frosts and freezes. 

Botanical Name Brassica oleracea var. gemmifera
Mature Size Plant 20" - 24" tall
Light Sun to partial sun
Cold Hardiness Frost-tolerant biennial; will tolerate temperatures to about 10 ° F
When to Sow Outside 4 months before your average first fall frost date, when soil temperature is at least 40°F.
When to Start Inside 4 to 6 weeks before transplanting outside, about 4 months before your average first FALL frost date so sprouts mature in cool weather.
Special Germination Instructions Indoor germination recommended.
Days to Emerge 5 - 10 days
Seed Depth 1/4"
Seed Spacing A group of 3 seeds every 24"
Row Spacing 24"
Thinning When 2" tall, thin to 1 every 24"
Maturity Date 85–110 days
When to Harvest Brussels sprouts start maturing from the bottom of the plant to the top. Buds should be picked (snapped or cut off) when they are firm and about the size of a large cherry, between 3/4" and 1" in size.
Additional Info Brussels sprouts can be left in the garden through a freeze, which sweetens the flavor.
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