Siberian Wallflower, Heirloom Flower

Despite its rugged name, the Siberian Wallflower is not actually from Siberia! It is a "naturalized" heirloom with a bit of a botanical mystery. It is believed to be a hybrid (Erysimum marshallii) that was discovered in Marshall’s Nursery in England in 1846.

Historically, wallflowers earned their common name because of their uncanny ability to grow in the lime-rich mortar of crumbling stone walls and cliff faces. In the Language of Flowers during the Victorian era, the wallflower symbolized "faithfulness in adversity." Because of its incredible cold hardiness and early bloom time, it became a staple of European estates, used in massive "bedding" displays alongside blue Forget-Me-Nots to create a striking complementary color scheme.

• Intense Fragrance: One of the most scented flowers in the spring garden; its sweet aroma can be detected from several yards away.
• Pollinator Magnet: An essential early-season food source for emerging bees and butterflies (especially the Red Admiral).
• Vibrant "Electric" Orange: Features a unique, saturated orange hue that is rare in the early spring palette.
• Exceptional Hardiness: As its name suggests, it is incredibly tough, thriving in cold spring weather and resisting frost with ease.
• Versatile Perennial: Usually grown as a biennial (sown in summer for spring blooms) or a short-lived perennial, but will often bloom the first year if started early.

1. Sowing the Seeds:
Wallflowers are easy to grow and can be treated as annuals or biennials.

• For Spring Blooms (Biennial Method): Direct sow in late summer or early autumn. The plants will form a green mound before winter and explode into bloom the following spring.
• For Summer Blooms (Annual Method): Start seeds indoors 8 weeks before the last frost, or direct sow as soon as the soil can be worked in early spring.
• Depth: Surface sow and barely cover with 1/8 inch of soil. They require some light to germinate.

2. The Best Spot:
Wallflowers love Full Sun but will perform well in partial shade.

• The Alkaline Advantage: They have a historic preference for "sweet" soil. If your soil is acidic, adding a little garden lime will make them feel right at home.
• Drainage is Key: They must have well-drained soil. They are remarkably drought-tolerant once established but do not like "wet feet" in the winter.

3. Maintenance:

• Spacing: Thin seedlings to 12 inches apart.
• Deadheading: Remove the spent flower spikes to encourage a longer bloom season and prevent the plant from putting all its energy into seed production.
• Self-Sowing: If you want a permanent patch of wallflowers, leave a few flower heads at the end of the season to drop their seeds.

For a world-class visual display, plant Siberian Wallflowers alongside Forget-Me-Nots (I recommend Chinese Forget-Me-Nots or aka Firmament as they are not aggressive) or purple Late-Spring Tulips. The "Electric Orange" of the wallflower makes the blues and purples of other spring flowers appear even more vibrant.

Garden Tip: Wallflowers make excellent, long-lasting cut flowers. Snip them when the lower half of the flower spike is open; they will continue to unfurl in the vase and perfume your entire room! ✂️🍯