Mullein 'Helen Johnson'

This is a hardy plant that should survive zone 8 winter, especially if protected from the hardest of frosts.

Removing the old flower heads promotes smaller spikes later in the year, and may prolong the life of the plant

Try to plant in a location that enjoys full sun and remember to water moderately. Helen Johnson is generally regarded as a hardy plant, so it can be safe to leave outdoors for the majority of winter (although if in doubt, using a row cover is often a good idea).

Germinates easily from small seed. Try to sow thinly, but will pot on easily to individual pots. Grow on and continue to pot up

For optimal germination, soil temperature should be a minimum of 10°C / 50°F.

By our calculations, you should look at sowing Helen Johnson about 49 days before your last frost date.

Plant out at the end of the summer to over winter in the flowering position
Place to the back of the border to show the tall flowers to the best. Prefers sun to partial shade on free draining soil
Flowers the season after sowing if grown from seed

Helen Johnson is hardy, so ensure you wait until all danger of frost has passed in your area before considering planting outside.

Using the blooms as cut flowers may increase the longevity of the plant, as there is a tendency to biennial type

This variety tends to mature and be ready for harvest in early summer.

Originally from Kew Gardens.