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Botanical Interests

Waltham 29 Broccoli Seeds

Waltham 29 Broccoli Seeds

Regular price $2.69
Sale price $2.69 Regular price
~1.5 g (~360 seeds)
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Product Details

Broccoli has a long culinary history going back to the Romans. The florets, leaves, and stems are packed with vitamin C and provide calcium, potassium, and iron. The 4"-6", blue-green heads are delicious raw or cooked. 'Waltham 29' grows prolific side shoots and is specially adapted for cold tolerance. Freezes well. Kids will delight in the "little trees" on their plate.

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  • Variety Info
  • Sowing Info
  • Growing Info

Variety Info

Days to Maturity: 75 days

Family: Brassicaceae

Native: Europe

Hardiness: Frost-tolerant annual

Exposure: Full sun

Plant Dimensions: 20"–24", compact

Variety Info: Plants produce a medium-sized, 4"–6" main head followed by smaller 1" side shoots.

Attributes: Good for Containers, Frost Tolerant

Sowing Info

When to Sow Outside: 4 to 6 weeks before your average last frost date, or when soil temperature is at least 40°F, ideally 60°-85°F. Also in late summer for fall harvest. Mild Climates: Best sown in fall or winter for cool-season harvest.

When to Start Inside: RECOMMENDED. 4 to 6 weeks before transplanting outside after your average last frost date, or 12 weeks before your average first fall frost date. In mild climates, sow in fall for harvest in late winter and early spring. Ideal soil temperature for germination is 70°–85°?, cooler (60°F) growing temperatures thereafter.

Days to Emerge: 7–14 days

Seed Depth: ⅛"

Seed Spacing: A group of 3 – 4 seeds every 24"

Row Spacing: 24"–36"

Thinning: When 2" tall, thin to 1 every 24"

Growing Info

Harvesting: Harvest when florets are enlarged but still closed. This will encourage large numbers of side florets.

4.4
Rated 4.4 out of 5 stars
Based on 14 reviews
Total 5 star reviews: 12 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 2
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14 reviews
  • Jake V.
    Rated 5 out of 5 stars
    Feb 20, 2025
    5 Stars

    While I have worked to grow this broccoli variety before, this year it seemed that my broccoli was blooming faster all while the pre-blooming heads were seemingly not big enough in my opinion for my typical broccoli cheese soups. This could have possibly been a fault on my part, since it may have been a nutrient issue that I didn’t supply. It’s not all bad though, as bees definitely love the flowers that sprout, and if you love bees, this is a good plant for bee nutrition. I don’t know what the bees are tasting, but I imagine Broccoli flower pollen probably taste almost like how we think broccoli with butter is like.

  • Matthew F.
    Verified Buyer
    Rated 5 out of 5 stars
    Nov 13, 2024
    5 Stars

    This photo is a picture of the Waltham Broccoli, I direct sowed, and I had superior germination, also my Georgia Southern and Florida Broadleaf Mustards all germinated well. My Fall garden is looking mighty nice, thanks BI.

    Which best describes you as a gardener? Intermediate
  • Loris M.
    Rated 5 out of 5 stars
    Mar 15, 2024
    5 Stars

    I have more to my story...this is a "critter" that got to my broccoli! Bob likes vegies! Fortunately, he took a bite out of the one I should have thinned anyway :-)

    Which best describes you as a gardener? Beginner
  • Loris M.
    Rated 5 out of 5 stars
    Mar 15, 2024
    5 Stars

    I planted these from the seedlings about a month ago. This picture is after being in the ground a week or so. We had some bigger storms so I covered them with critter cages and some frost cloth. They did well and one has a small head already growing.

    Which best describes you as a gardener? Beginner
  • Anna H.
    Rated 5 out of 5 stars
    Mar 12, 2024
    5 Stars

    Planted 9 seeds and all 9 have emerged from the soil. Love in Colorado so started indoors.