verbascum

Verbascum 'Helen Johnson' typically requires watering once a week; however, the amount of water you should provide should be based on the soil's moisture level. The plant requires moist to somewhat dry soil, so it's important to check the soil's moisture level before watering to ensure that you're not overwatering the verbascum. To check the soil's moisture level, stick your finger into the soil up to your first knuckle. If the soil feels dry, it is likely time to water your verbascum. Be sure to water the soil around the verbascum deeply, and allow the water to penetrate until it starts to trickle out of the drainage holes of the pot. Once the water trickles out of these holes, stop watering.

Verbascum 'Helen Johnson' is a hardy plant from the Mullein family that thrives in sunny spots and is tolerant of a variety of soil types. This plant species requires full sun for optimal growth. It should ideally be planted in a place where it will receive at least 6 hours of direct sun daily, preferably in the morning. This will help the plant to continue flowering abundantly throughout the summer. If grown in lower-light conditions, this plant will struggle to grow and may not flourish. Furthermore, it is important to ensure that the soil in which the plant is planted is well-drained as Verbascum 'Helen Johnson' is prone to root rot.

Pruning of Verbascum 'Helen Johnson' should take place in early spring before new growth appears. Prune off last year's flower stems and remove any dead or damaged stems. It is not necessary to prune aggressively, as Verbascum 'Helen Johnson' flowers on the current year's growth. Pruning can help to shape the plant and promote more vigorous and upright growth. Be sure to use sharp pruning shears and make clean cuts just above the leaf axils. Light pruning can also help control the size of the plant.