Siberian Wallflower Seeds – Orange | WINTER

Siberian Wallflower (Orange) is a bright and cheerful winter-blooming plant, perfect for adding vibrant orange color to gardens, borders, and pots. Hardy and frost-tolerant, it thrives in cool weather and produces long-lasting blooms that brighten up winter landscapes. Its compact growth and vivid flowers make it ideal for decorative gardens and winter floral arrangements.

Key Features

• Botanical name: Erysimum × allionii
• Synonym: Cheiranthus allionii
• Common name: Siberian Wallflower
• Bright orange to golden-orange flowers
• Fragrant blooms
• Compact and bushy growth
• Approximate height: 40–50 cm
• Biennial / short-lived perennial
• Excellent for winter and spring colour
• Suitable for flower beds
• Ideal for borders and edging
• Excellent for rock gardens
• Suitable for pots and grow bags
• Attractive to bees and butterflies
• Suitable for cut flowers
• Full-sun plant

Recommended Grow Bags

G-11 Grow Bag – 11 × 10 inch 🔗

Suitable for:

A compact group of Siberian Wallflower plants.

G-12 Grow Bag – 12 × 12 inch 🔗

Recommended for a fuller orange flowering display.

G-24 Grow Bag – 24 × 12 inch 🔗

Excellent for:

Growing several plants together for a broad mass-flowering display.

Recommended Soil / Potting Mix

Use:

70% Bhalu Mitti / Sandy Soil + 20% GREEN GARDENS Vermicompost 🔗 + 10% Cocopeat

The growing medium should be:

Loose, moderately fertile and very well-draining.

Siberian Wallflower particularly prefers:

Well-drained neutral to slightly alkaline soil.

It can perform well even in relatively modest soil fertility, provided drainage is excellent.

Avoid:

• Heavy compact soil
• Poor drainage
• Standing water
• Continuously saturated soil
• Excessive organic fertilizer
• Excessive nitrogen fertilizer

Growing Instructions from Seeds

Siberian Wallflower can be:

Direct sown or started in seedling trays.

Sow seeds approximately:

0.5 cm / ¼ inch deep.

Cover lightly with fine soil or growing medium.

Water gently after sowing.

Keep the growing medium:

Lightly and consistently moist until germination.

Both RHS wallflower guidance and Siberian Wallflower cultivation references recommend lightly covering the seed rather than leaving it completely exposed.

Important Sowing Note

Avoid sowing Wallflower seeds too deeply.

A covering of approximately:

5 mm / 0.5 cm

is sufficient.

After sowing:

Lightly firm the surface

to improve seed-to-soil contact.

Use:

Gentle watering

so the small seeds are not washed away.

Germination

Seeds generally germinate within approximately:

10–20 days

under suitable conditions.

Some seed lots or cooler conditions may require slightly longer.

Good germination depends on:

• Suitable temperature
• Consistent moisture
• Correct sowing depth
• Fine growing medium
• Good drainage
• Seed freshness

The existing GREEN GARDENS listing gives 10–20 days, while specialist Siberian Wallflower sources commonly report roughly 10–21 days.

Ideal Germination Temperature

Recommended germination temperature:

18–20°C

This range encourages:

Healthy and relatively uniform germination.

Specialist Erysimum × allionii seed guidance gives approximately 18–20°C as an optimum germination range.

After germination:

Provide strong light and good air circulation.

Transplanting

If seeds are started in trays:

Transplant seedlings while they are still young.

Wallflowers can develop a substantial root system, so avoid repeatedly disturbing established plants.

Move seedlings into:

Flower beds, pots or grow bags

once they are strong enough to handle.

Water after transplanting and allow them to establish gradually.

Plant Spacing

Maintain approximately:

20–30 cm / 8–12 inches between plants

for home garden cultivation.

Adequate spacing helps provide:

Good airflow, bushy growth and better flowering.

For a fuller mass display:

Plants may be positioned toward the closer end of the spacing range.

Sunlight

Provide:

Full sun.

Approximately:

6+ hours of direct sunlight daily

is recommended for strong growth and abundant flowering.

RHS describes full sun as essential for best Siberian Wallflower performance.

Watering

During germination:

Keep the growing medium lightly and consistently moist.

Once plants become established:

Water when the upper soil layer begins to dry.

Avoid:

Standing water and continuously saturated soil.

Wallflowers tolerate some dryness much better than:

Poorly drained or persistently wet soil.

Feeding

At planting time, incorporate a moderate amount of:

GREEN GARDENS Vermicompost 🔗

into the growing medium.

Siberian Wallflower generally performs best with:

Moderate fertility rather than heavy feeding.

Avoid excessive nitrogen fertilizer because it may encourage:

Soft leafy growth rather than compact flowering.

Related Products

G-11 Grow Bag – 11 × 10 inch 🔗

G-12 Grow Bag – 12 × 12 inch 🔗

G-24 Grow Bag – 24 × 12 inch 🔗

GREEN GARDENS Vermicompost 🔗

Winter Flower Seeds 🔗