Wallflowers plants are an easy to grow the perennial plant, that will perk up rock gardens, bank sides, and walkways. And, they look great in just about any location. Wallflower plants look their best when grown in mass plantings. And, they tolerate a little crowding. This guide on “How to Grow Wallflowers” will help you to grow great plants this year and every year!
Wallflower plants are native to the Mediterranean, North and Central America, Europe, Southwestern Asia. The most common flower colors include shades of yellow, orange, and violet. Less common are pinks, blues, and crimson varieties.
Flowers Bloom: Summer to early Fall
Plant Height: 4″ – 50″, depending upon variety
Other Plant Names: Blister Cress, Gillyflower
Garden Tip: Try growing shorter varieties of wallflowers in containers on the deck, or in window boxes.
Perennial Wallflower plants are grown from seed. Wallflower seeds need light to germinate. Loosen the soil, and sow seeds on top of the ground. Water the seeds in, lightly. Keep the soil moist while germinating seeds.
ALso, the plant can be propagated from cuttings in the spring.
Days to Germination: 15-30 days.
Plants will often self-seed.
Wallflower plants are easy to grow and maintain.
The plants prefer full to partial sunlight.
Grow plants in average to rich soil. The soil should drain well.
Wallflower does not need a lot of fertilizer. Mix in compost when first planting. Apply a general-purpose fertilizer in the early spring, and again in mid-summer.
Wallflower is somewhat drought tolerant. Water plants during extended dry weather. But, do not let the soil get soggy.
After the plants are established, mulch around them, to help keep weeds down, and to retain soil moisture.
Deadhead spent flowers, to promote more blooms.
Plant Spacing: 12″
Ideal Soil pH: 5.5 – 7.5.
Wallflower plants are seldom bothered by insects and disease. Generally, these plants do not need insecticides or fungicides.
On rare occasion where insects or disease are a problem, treat them with an insecticidal soap and /or fungicide at the earliest sign of trouble.