Description

The Crimson Treasure, Ancient Beauty and the Kale of Profound Resilience

Red Russian kale looks like it was stitched together from winter light, deep green leaves traced with crimson veins, as if the plant were carrying its own warmth. It grows with quiet determination, standing up to cold that would flatten softer greens, and it answers frost with sweetness.

The leaves are finely textured and deeply lobed, tender enough for salads when young and sturdy enough for soups when mature. In cool weather, the red-purple veining intensifies, and the flavour turns gentler, sweeter, a reminder that some of the best harvests arrive as the season leans toward winter.

A whisper of history

Kale’s wild cabbage ancestors were gathered and cultivated around the Mediterranean for thousands of years, valued for their nutrition and their ability to thrive under challenging conditions. Over centuries, kale became a staple across Europe because it could feed people when fields were bare.

Red Russian kale comes from the cold-climate wisdom of Russia and Eastern Europe. It was selected over generations for hardiness, tenderness, and reliable leaf production in harsh weather. It travelled with immigrants and seed savers into North America and became beloved in Canadian gardens for the same reason it was cherished at home: it keeps giving when the weather turns.

What You’ll Grow

• Plant habit: Hardy, vigorous leafy brassica; typically 45 to 60 cm (18 to 24 in) tall
• Spread: 30 to 45 cm (12 to 18 in)
• Leaves: Deeply lobed, lacy-edged leaves with crimson-red/purple veining that intensifies in cool weather
• Texture: Notably tender for kale, especially as baby greens
• Flavour: Mild, slightly sweet; sweeter after frost

Days to maturity:

• Baby greens: 50 to 65 days
• Full-size leaves:  70 to 90 days (weather and harvest style dependent)

Growing Instructions

Timing (Cool-Season Champion)

Red Russian kale thrives in cool weather and doesn’t need warm soil to germinate.

• Start indoors: 4 to 6 weeks before last frost
• Direct sow: As soon as the soil can be worked in spring, or after the last frost
• Fall crop: Sow mid-summer for fall and winter harvest (often the sweetest crop)

Starting Indoors

• Sow seeds 6 to 10 mm (1/4 to 1/2 in) deep in seed-starting mix
• Keep evenly moist; germination typically 7 to 14 days
• Provide bright light after emergence
• Seedlings tolerate cool temperatures well

Hardening Off + Transplanting

• Harden off for 7 to 10 days
• Transplant when seedlings have 4 – 6 true leaves
• Kale can go out earlier than heat-loving crops; it handles cool weather

Direct Sowing

• Sow 6 to 10 mm (1/4 to 1/2 in) deep
• Space seeds about 15 cm (6 in) apart, then thin
• Final spacing: 30 to 45 cm (12 to 18 in) between plants

Succession Sowing (For Continuous Tender Leaves)

• Sow every 2 to 3 weeks from spring through mid-summer
• This keeps a steady supply of baby leaves and prevents a single big glut

Sun + Shade

• Best in full sun
• Tolerates partial shade (especially helpful in hot midsummer areas)
• Aim for 4 to 6+ hours of direct sun for strong growth

Soil (Fertile, Well-Drained)

• Kale loves soil rich in organic matter
• Work in compost or well-rotted manure before planting
• Ideal pH is slightly acidic to neutral (kale is adaptable)

Watering (Sweetness Lives in Consistency)

• Provide 2.5 to 5 cm (1 to 2 in) of water per week
• Inconsistent watering can make leaves tougher and more bitter
• Water at the base; avoid soaking foliage late in the day

Feeding

• Kale is a moderate feeder
• Side-dress with compost or a balanced fertilizer every 3 to 4 weeks during active growth, especially if harvesting heavily

Mulch

• Mulch conserves moisture, suppresses weeds, and moderates soil temperature
• Particularly helpful for fall crops as nights cool

Pests & Problems (Brassica Reality)

Even hardy kale benefits from protection.

• Cabbage moth/cabbage worms: use row cover, hand-pick, or use approved organic controls
• Flea beetles (seedlings): row cover early; keep plants growing steadily
• Aphids: rinse off; encourage beneficial insects
• Clubroot: rotate brassicas; avoid planting in infected soil; keep pH near neutral

Harvesting (How to Keep It Producing)

• Begin harvesting when leaves are 10 to 15 cm (4 to 6 in) for baby greens, or larger for cooking
• Harvest outer leaves first, leaving the center growing point to keep producing
• Regular harvesting encourages new growth and keeps leaves tender

Frost Magic

• Flavour improves after frost: leaves become sweeter and milder
• Plants tolerate hard frosts and can often be harvested well into winter, especially with protection
  • Preserving + Storage

    • Refrigerator: store unwashed leaves in a bag/container; use within a week for best texture
    • Blanch + freeze: ideal for soups, stews, and sautes
    • Dehydrate: powder for smoothies/soups (flavour concentrates)
    • Kale chips: best with younger, tender leaves

    Culinary Notes: Crimson Beauty You Can Eat

    • Fresh salads: especially with baby leaves; massage larger leaves with oil + lemon
    • Sautéed with garlic: quick, simple, perfect
    • Soups and stews: hold their shape without turning stringy
    • Smoothies: mild flavour makes it easy to blend
    • Stir-fries: add at the end for tender greens
    • With beans/lentils: classic, hearty, deeply nourishing

    Canadian Climate Notes

    Red Russian kale is one of the most reliable greens for Canadian gardens.

    • Thrives in cool springs and cool falls
    • Handles frost exceptionally well; flavour improves as temperatures drop
    • For winter harvest, use row cover or a cold frame to extend picking

    Growing zones: 211 (cold-hardy; typically grown as an annual, but it is biennial for seed production).

    Nutrition Notes (Why It’s a Staple)

    Red Russian kale is celebrated for its nutrient-dense profile and support for everyday health.

    • Rich in vitamin K, A, and C
    • Provides fibre and key minerals like calcium and iron
    • Contains protective plant compounds typical of brassicas (glucosinolates)

    Seed Saving

    Red Russian kale is biennial: it makes leaves the first year and flowers/seeds the second.

    Keeping a Plant for Seed

    1. Choose one or more healthy plants and stop harvesting heavily in the fall
    2. Let plants overwinter (mulch helps; in icy areas, protection improves survival)
    3. In the spring of year two, plants send up tall flowering stalks

    Harvesting Seed

    1. Allow flowers to be pollinated (bees love brassica blooms)
    2. Seed pods form and dry on the stalk
    3. Harvest when pods are brown and dry (before they shatter)
    4. Hang stalks to finish drying, then thresh pods to release seed
    5. Winnow and store seed cool and dry

    Isolation & Cross-Pollination

    • Kales cross readily with other flowering kales and related brassicas
    • For true seed, isolate by distance (as much as practical) or only let one Brassica type flower

    Seed viability: 4 to 5 years