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High Mowing Organic Seeds
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Organic Non-GMO Cauliflower Seeds::Organic Adona F1 Cauliflower

Organic Adona F1 Cauliflower  Organic Non-GMO Adona F1 Cauliflower - HYBRID

Strong, vigorous plants with beautiful, high quality heads and a short harvest window. Attractive, well-domed compact heads with dense flavorful white curds that resist becoming fuzzy or ricey. Heads are well-protected; wrapper leaves are well suited to tying or the "break, fold and cover" method of blanching. Tolerant of bacterial soft rot and downy mildew. From Bejo Seeds. Spring or fall crop · 5" heads (Brassica oleracea var. botrytis)

Days to maturity: 76 days

SKU Description Our price
2299A 25 Seeds $5.30
2299B 500 Seeds $27.25
2299M001 1 M $48.00
2299M005 5 M $197.50 $39.50/M
2299M025 25 M $863.50 $34.54/M
2299M100 100 M Call For Availability $2995.00 $29.95/M

Unit Size
Cauliflower Comparison Chart
Item Code Variety Name Type Disease Resistance DTM Standout Characteristics
2313 Goodman white   65 small plants produce nice heads, deep curds, ivory domes average 10" across, holds in field, concentrated harvest period
2338 Snowball Y white   70 smooth and tight curds, 6-7" heads, dwarf plants, outer leaves protect heads, harvest over long period, good for fall harvest
2316 Janvel F1 white   75 gorgeous, high quality uniform heads with tight wrapper leaves that protect curds from sunburn; high yielding and slightly longer harvest window
2318 Skywalker F1 white FY 75 good for fall harvest, excellent uniformity and quality, concentrated harvest, perfect white heads, widely adapted, partially self-wrapping heads
2299 Adona F1 white   76 vigorous plants with dense, flavorful 5" heads. Attractive and well-protected; well-suited to the "break fold and cover" method of blanching.
2319 Veronica F1 Romanesco Romanesco FY 77 tends to be cream colored with a blush of pink in warmer temperatures, nutty flavor, good cooked or raw

Disease Resistance Key:
FY Fusarium Yellows & Wilt

Organic Cauliflower - Growing Information

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Cauliflower is a cool season biennial in the Brassicaceae family, sharing species name Brassica oleracea  with brussels sprouts, cabbage, collards, kale, broccoli, and kohlrabi. Most cauliflower varieties are white, but a few are purple. The spectacular Veronica Romanesco has a green floret that grows in a spiky spiral.

Soil  and Nutrient Requirements

Cauliflower prefers well drained fertile soils high in organic matter. It will tolerate slightly alkaline soil, performing best in the 6.0 – 7.5 range. A general guideline is 2-3 lbs of 8-16-16 fertilizer over 100 sq ft of garden area two weeks before planting.  If boron is not present in your soils, consider adding 1 Tbs per 100 sq ft. If soils are heavy or tend to be wet, a raised bed is recommended. Mulch can help keep soil cool and moist.


Full sun

Seeding Depth


Seeding Rate

3 seeds/ft

Plant Spacing


Row Spacing


When to Sow

Transplanting is recommended for spring crops, especially in the Northeast. Start indoors 4-6 weeks before planting date. Optimal soil temperature for germination is 65-75°F, but cauliflower will germinate as low as 50°F.  Transplant out when seedlings have 4-5 true leaves. Older plants are more susceptible to bolting if temperatures are uneven. Fall plantings can be direct seeded or transplanted in mid-summer.

Other Info

Heads will not develop well in hot or dry weather. Timing is critical.

Frost Tolerant

Young seedlings are fairly hardy, but mature heads will not tolerate a hard freeze.

Drought Tolerant


Heat Tolerant

No. Heat stress during head formation can cause “buttoning”, a failure of the head to size up properly.

Seed Specs

90-170M seeds/oz (128M avg.). M=1,000

Seed Coating / Pelleting Info

Some of the varieties we carry receive an organic film coating applied to the seed, which make the seed easier to see during planting.


Cauliflower heads should be harvested while curds are still tight. Check fields every 2-3 days. Cover developing heads or tie leaves together to protect heads from sunlight for blanched effect. Self-blanching varieties have tight leaf curl around heads so minimize need to cover. Harvest heads promptly when they are full size but still compact, white and smooth. Delaying harvest results in curds turning loose and ricey. Cool cauliflower immediately after harvest to retain quality.


Store at 32°F for 1-2 weeks.

Pest Info

  • Cabbage looper, imported cabbage worm, and diamondback moth are of the Lepidoptera order and can thus be controlled by Bacillus thuringiensis (such as Dipel DF) and/or spinosad (such as Entrust™), preferentially in rotation with one another to prevent selection of resistant individuals (check with your certifier before applying).
  • Protect plants from flea beetles by using floating row covers in the early season.
  •  Root maggots can be controlled by applying beneficial nematodes.

Disease Info

  • Black rot (Xanthomonas campestris pv. campestris) first appears as V-shaped, yellow lesions at leaf margin. Infected plants should be pulled up immediately, and plantings should never be worked during wet conditions.
  • Fusarium yellows, caused by the bacteria Fusarium oxysporum f. sp. conglutinan, manifests as yellowing of the lower leaves 2-4 weeks after transplanting.  Yellowing moves to upper leaves and ultimately causes wilt.
  • Fungal diseases can be prevented by spraying with copper hydroxide (such as Champion WP™and/or oxidate (such as Storox™), but are best prevented by production practices that build soil and promote vigorous plant growth.
  • Head rot of broccoli and cauliflower, caused by several different bacterial species, can develop quickly under conditions of high moisture and high temperature.  It shows up as leaf discoloration and decay at base of outer leaves. Head rot is prevented by production practices that enhance air movement to promote drying, as well as maintenance of adequate calcium and boron levels in soil.
  • Clubroot is a soil borne disease which stunts the roots of the plants so that they are not able to develop normally. Rotate crops and add lime to raise soil pH to 7.2.

Seed Saving Info

Insect pollinated biennial (can work as an annual). Cauliflower will cross with all members of Brassica oleracea. Isolation distances of ˝ mile are necessary for purity, unless alternate day caging is used. Barriers such as tree lines, woods or buildings in between varieties can allow for shorter distances. Transplant in early spring and allow plants to flower after forming a compact head. Cauliflower seed can take a very long time to mature and may require some season extension. Gather seed stalks when seed pods are dry being careful to prevent losses due to shattering. Use a 1/8" screen to help with cleaning. Seed remains viable for 5 years under cool and dry storage conditions

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