Long Island Improved Brussels Sprouts Seeds

Brassica oleracea var. gemmifera

Modern chefs have transformed this historically disliked vegetable into a much-sought-after food that is delicious deep fried, steamed, or roasted. Give them plenty of water, nutrients, and time to grow before they begin forming sprouts. Covering plants with row covers after sowing/transplanting will help exclude pests. You can leave plants in the garden into the winter, as they are hardy to 10°F; frost actually improves the flavor. The plants resemble little palm trees.

$2.69 ~140 seeds
4.2
Rated 4.2 out of 5 stars
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Features

Family

Brassicaceae

Native

Europe

Life Cycle

Life Cycle

Biennial

Plant Height

Plant Height

Medium (12" - 24")

Further Information

Growing Conditions

Growing Conditions

Frost Tolerant

About Brussels Sprouts

Brassica oleracea var. gemmifera

1"–1½", blue-green orbs that look like tiny cabbage heads, and grow tightly and densely against the main trunk of the plant. The cluster of leaves at the top of the plant give it a palm-tree-like look. 'Long Island Improved' was developed in the 1890s, quickly becoming the garden standard, and continues to be a dependable heirloom for home gardeners.

Planting Brussels Sprouts

Plant Spacing

A group of 3 seeds every 24"

Light Required

Light Required

Full sun

Plant Height

Plant Height

Medium (12" - 24")

Planting Depth

Planting Depth

¼"

Coverage & Planting Details

Coverage This packet sows up to 95 feet.
Row Spacing 24"
Seed Depth ¼"
Seed Spacing A group of 3 seeds every 24"
Thinning When 2" tall, thin to 1 every 24"
Germination 5–10 days
Start Indoors RECOMMENDED. 4 to 6 weeks before transplanting outside, about 4 months before your average first fall frost date so sprouts mature in cool weather. In mild climates, sow in fall for harvest in late winter and early spring. Optimal soil temperature for germination is 60°–85°F.
Direct Sow 4 months before your average first fall frost date, when soil temperature is at least 40°F.
Growing & Harvesting Brussels sprouts start maturing from the bottom of the plant to the top. Buds should be picked when they are firm and about the size of a large cherry, between 3/4" and 1" in size. Break off the leaf just below the buds and snap or cut off the sprout. Brussels sprouts can be left in the garden through a freeze, which sweetens the flavor.

Find Your Frost Date & Grow Zone

4.2
Rated 4.2 out of 5 stars
Based on 10 reviews
Total 5 star reviews: 7 Total 4 star reviews: 0 Total 3 star reviews: 2 Total 2 star reviews: 0 Total 1 star reviews: 1
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Rating
Ratings
Which best describes you as a gardener?
Which best describes you as a gardener?
10 reviews
  • Jennifer S.
    Verified Buyer
    Rated 5 out of 5 stars
    2/28/25
    5 Stars

    Love the seeds we purchased! Everything grew beautifully! This is the only place we buy seeds from and will continue to every year.

  • Kirsten P.
    Verified Buyer
    Rated 5 out of 5 stars
    8/27/24
    5 Stars

    Always very useful information and great germination and harvest from your seeds

    Which best describes you as a gardener? Intermediate
  • Jessica S.
    Rated 5 out of 5 stars
    4/2/24
    5 Stars

    These were fun. I hate Brussels sprouts so of course they grew very well and we got a bumper crop of Brussels sprouts. Don't forget to harvest the "king brussel" at the top of the plant. My family said they were delicious.

    Which best describes you as a gardener? Expert
  • Ethan P.
    Verified Buyer
    Rated 5 out of 5 stars
    1/14/24
    5 Stars

    Always have good results with y’all’s seed!

    Which best describes you as a gardener? Intermediate
  • Cindy R.
    Verified Buyer
    Rated 5 out of 5 stars
    10/18/23
    5 Stars

    Fast delivery!!!!! Love the beautiful packaging.

    Which best describes you as a gardener? Beginner

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