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Siberian Wallflower
Seed Packet

Siberian Wallflower

Erysimum cheiri syn. Cheiranthus cheiri
Radiant orange clustered petals bloom above the narrow green foliage of Siberian wallflower. Sunny days will bring visiting butterflies and bees. Citrus-hued and sweet scented, it enlivens well-drained garden edges in summer.
SKU #S1853
$3.55
Details
Approximate Seeds Per Packet
550
Lifecycle
Biennial
Perennial Hardiness Zone
7,
8,
9
Annual Hardiness
Half Hardy Annual
Mature Size
1-1.5' h x 8" w
Sun
Full sun
Soil
Regular to rich, well-drained
Season
Spring to summer
Color
Clusters of four-petaled orange flowers
Features
Especially Fragrant Flowers
Great for Containers
Great Cut Flower
Heat or Drought Tolerant
Attracts Butterflies
Attracts Bees
Attracts Hummingbirds
SOWING INSTRUCTIONS
Depth:
Light cover 1/8"
Sprout Time:
10-14 days
Starting Indoors:
Sow indoors in pots 10-12 weeks before last frost for first-year bloom. Pinch and grow cool (55-70°F) until transplanted.
Starting Outdoors:
Direct sow in fall in warm winter areas (zones 8-9).
WHEN TO SET OUTSIDE
At last frost date.
PLACEMENT & CULTIVATION
Siberian wallflower is variously described as an annual, biennial, or short-lived perennial. Start early indoors, grow cool, 50°F once fully germinated, and transplant in spring for bloom in summer in northern areas. Add brilliance to garden edges, rock gardens, and cottage gardens. Trim after blooming for neatness, leaving a few to self-sow.
Final Spacing:
1'
Water Requirements:
Medium Water Use
Watering Details:
About 1" per week; do not overwater. May tolerate some drought once established.
Soil pH:
Neutral to alkaline
Fertilizer:
If soil is poor, mix in a few inches of compost prior to planting.
Diseases & Pests:
No major problems.
When to Cut for Bouquets:
Cut when 1/2 of florets are open.
Growing Guides Fall Sowing Hardy Annuals
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