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Ravenelle wallflower, easy and flower-bearing

Yellow flower of the ravenelle wallflower
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This special variety of wallflower, Ravenelle, is a little flower with an endearing scent that is a must-have in perennial flower beds for its colors as much as for its unique shape.

Ravenelle wallflower at a glance
Name Cheiranthus cheirii
Family Brassicaceae
Type perennial grown as a biennial
Height 8 to 16 inches (20 to 40 cm)
Exposure full sun
Soil ordinary, well drained
Flowering mid-spring to mid-autumn depending on the variety

Wallflower adapts to the most difficult growing spots, and decorates them in a transcending manner.

Planting, sowing wallflower

What you’ve got here is a plant that will actually thrive where usually none of the other plants can grow.

When purchased in small pots, it is a good idea to plant in spring or in fall. Settling it down near a passing place is interesting since it releases a delightful fragrance.

  • Select a very sunny spot.
  • Water over the first weeks that follow the planting.
  • No point in providing fertilizer, wallflower doesn’t need any.

Sowing wallflower

Regarding any wallflower seeds you may want to sow, simply sow in a nursery starting from the month of early spring and transfer to the ground during late spring.

Orange red flowers and next flowers to appear
Removing faded flowers keeps new buds coming

But you can also sow directly in the ground, especially ravenelle wallflower, once any risk of frost has subsided, from late spring to midsummer.

  • In soil that has been broken down by couple strokes of the spade, broadcast seeds.
  • Water regularly until seeds sprout and then as soon as the soil is dry.
  • Thin to 12 inches (30 cm) when several leaves have appeared on each plant.

Three ways to start ravenelle wallflower

Ravenelle wallflower can be bought as a young plant or raised from seed, and the timing changes completely from one route to the other. Here is what each method asks of you.

Three ways to start ravenelle wallflower
Method When What to do Spacing
Planting bought pots Spring or autumn Choose a very sunny spot, ideally near a passing place for the scent —
Sowing in a nursery From early spring Sow under cover, then move the young plants outdoors —
Sowing direct in the ground late spring to midsummer Broadcast seed on soil loosened with a spade, water until seedlings appear Thin to 12 inches (30 cm)

Whichever route you take, water regularly while the plants settle in, then only when the soil dries out.

Which ravenelle wallflower to choose

Wallflowers are sold either as single-colour strains or as mixes, and the height varies enough to matter when you place them. Here are the varieties most often found on seed racks and in garden centres.

Which ravenelle wallflower to choose
Variety Flower colour Best use
‘Harpur Crewe’ Double bright yellow Old walls, scented spots
‘Fire King’ Bright orange-red Bold bedding blocks
‘Tom Thumb Mixed’ Mixed shades Pots, edging, crevices
‘Blood Red’ Deep crimson red Borders, cutting
‘Cloth of Gold’ Golden yellow Borders, wall tops
‘Vulcan’ Velvety dark red Tubs, front borders

Pruning and caring for wallflower

No specific pruning is required, but, to boost flower-bearing, remove wilted flowers often.

If you notice a few caterpillars feasting on leaves, check if they might be cabbage caterpillars. If you’ve got cabbages in your vegetable patch, better remove them quickly!

All there is to know about ravenelle wallflower

Very aesthetic and bearing incredible amounts of flowers, this perennial is literally called flower of the wall.

Pink and orange cluster of ravenelle wallflower, properly cared for
In beds the blooming is short-lived but abundant

Indeed, it settles right in any old stone wall, where it re-sows its seeds in nooks and crannies year after year.

It also does great, however, in flower beds and garden boxes with its beautiful, short-lived but abundant blooming.

The flower definitely releases a fragrance that is similar to that of cloves, quite interestingly so.

  • Wallflowers (Erysimum) are generally cold-hardy but dislike winter wet, often rotting in heavy, poorly drained soil, so sharp drainage and a sunny, open site matter more than protection from frost.
  • Plants that colonise the lime-rich mortar of old walls, such as wallflower and ivy-leaved toadflax, generally thrive on chalky, alkaline ground, so gardeners growing them need not acidify the soil.
  • For plants that self-sow readily, leave the faded flowers on a few stems rather than deadheading every one, so their seed capsules can ripen, open and scatter seed that renews the colony.

Smart tip about ravenelle wallflower

Cut off flowers that have finished blooming, this will trigger appearance of more flowers.


Written by Gaspard Lorthiois | Loves helping out, especially when it comes to growing things. Worked in herbal medicine, runs a farm, and dabbles in tech. Master's degree and engineer.