Self Blanche, Heirloom Cauliflower Seeds — Large Close-Jacket Leaves Blanch the Head Naturally, Deep Smooth Fine-Grained White Heads | 52–65 Days
Self Blanche (Brassica oleracea var. botrytis) is named for its most distinctive feature: the large, close-jacket outer leaves grow upward and curl over the developing head, providing a natural protective cover that blanches the curd to bright white without any tying or manual intervention. Deep, smooth, fine-grained heads with a delicious, mild flavor. Excellent for freezing and pickling. A hearty, rapidly growing plant highly valued by farmers and gardeners. Rich in Vitamin C, K, B6, calcium, folate, choline, potassium, phosphorus, and Omega-6 fatty acids — low in calories. 1.0g / 200+ seeds per packet. 52–65 days to maturity.
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Botanical name: Brassica oleracea var. botrytis
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Other names: Self Blanching
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Days to maturity: 52–65 days
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Head color: Bright white
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Head texture: Deep, smooth, fine-grained
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Flavor: Delicious, mild, appealing
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Self-blanching: Yes — large close-jacket leaves curl naturally over head
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Best uses: Fresh eating, freezing, pickling, raw snacking
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Soil: Well-drained, consistently moist, enriched; pH 6.0–7.0
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Temperature: Cool weather; not intended to overwinter
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Packet size: 1.0g / 200+ seeds
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Sowing depth: ¼ inch
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Plant spacing: 24 inches
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Light: Full sun
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USDA Zones: 3–10
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Type: Heirloom, open-pollinated, non-GMO, annual
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Pests: Aphids, root maggots
Self-Blanching — How the Name Explains the Plant
Self Blanche earns its name through a genuinely useful growth habit: the large, close-jacket outer leaves grow upward and naturally curl over the developing head as it forms, shading the curd from direct sunlight. This natural leaf cover prevents the yellowing and discoloration that occurs when cauliflower curds are exposed to light — producing a bright white, smooth, fine-grained head without the labor of manually tying leaves. In cool growing conditions, this self-blanching habit is reliable and consistent. The smooth consistency and delicate flavor that Self Blanche is known for is achieved through this natural blanching process during growth.
Fast-Maturing — 52–65 Days
Self Blanche is one of the faster-maturing white cauliflower heirlooms, reaching harvest in 52–65 days — significantly quicker than varieties like All Year Round (65 days) or Snowball Y Improved (70–80 days). This makes it an excellent choice for gardeners with short growing seasons, those succession planting for continuous harvest, or anyone who wants to get cauliflower on the table quickly. The rapid growth rate also makes it well-suited to spring planting, where the window between last frost and summer heat can be narrow.
Nutrition
Self Blanche is a nutritional powerhouse in a low-calorie package. A single serving is rich in Vitamin C (immune function), Vitamin K (blood clotting and bone health), Vitamin B6 (metabolism and brain health), calcium, folate, choline, potassium, phosphorus, and Omega-6 fatty acids. Cauliflower is one of the most nutritionally dense vegetables in the brassica family — and Self Blanche’s fine-grained, smooth texture makes it equally excellent raw (preserving heat-sensitive vitamins) or cooked.
Companion Planting
Planting celery near Self Blanche cauliflower helps protect against cabbage moths — celery’s strong scent deters the moths that lay eggs producing cabbage worms. Mulching around the base of plants repels weeds and helps maintain consistent soil moisture. Rotate brassicas on a 3–4 year cycle to minimize soil-borne disease pressure.
In the Kitchen
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Freezing: One of the best cauliflower varieties for freezing — blanch florets 3 minutes, shock in ice water, drain, and freeze; the fine-grained texture holds well
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Pickling: Excellent for cauliflower giardiniera and pickled florets; the smooth, firm texture holds up in brine
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Raw snacking: A low-calorie, nutritious snack — refrigerate florets and eat raw with dips; the mild flavor is excellent fresh
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Roasting: Toss florets with olive oil and seasoning; roast at 425°F until caramelized
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Steaming: Steam until just tender; serve with butter, lemon, or cheese sauce
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Cauliflower rice: Fine-grained texture pulses easily into uniform rice-sized pieces
Growing Notes
Best grown in early spring or fall for finest harvest. Start indoors 4–6 weeks before transplanting; sow ¼ inch deep in enriched, well-drained soil. Keep seedlings consistently moist. Harden off before transplanting outdoors. Space plants 24 inches apart in full sun in rich, well-drained, consistently moist soil. Mulch around base to repel weeds and retain moisture. The large close-jacket leaves will naturally curl upward and over the head — no tying required. Harvest at 52–65 days when heads are firm, tight, and bright white. Watch for aphids and root maggots.
Frequently Asked Questions
Why is it called Self Blanche?
The name refers to the plant’s self-blanching habit — the large outer leaves naturally grow upward and curl over the developing head, shading it from sunlight and producing a bright white curd without any manual tying or covering. “Blanching” in cauliflower growing means shading the head to keep it white; Self Blanche does this on its own.
Is Self Blanche good for freezing?
Yes — it is specifically noted as great for freezing. The deep, smooth, fine-grained texture holds up well through blanching and freezing. Blanch florets 3 minutes in boiling water, shock in ice water, drain thoroughly, and freeze in a single layer before transferring to bags. Frozen Self Blanche keeps well for 10–12 months.
How does it compare to Snowball Y Improved?
Both are self-blanching white heirloom cauliflowers, but Self Blanche matures faster (52–65 days vs. 70–80 days for Snowball Y) and is specifically noted for freezing and pickling. Snowball Y Improved produces slightly larger heads and has a wider zone range. Self Blanche is the better choice for short-season gardens or succession planting; Snowball Y for maximum head size.
Packed and shipped by Box Garden Seeds LLC — heirloom seeds grown without GMOs, selected for flavor, resilience, and your garden’s success.
