Growing Innovations
Verbascum 'Helen Johnson'

Verbascum 'Helen Johnson'

Consumer Information

Narrative Description:

Originally from Kew gardens, this plant has large felted leaves and very long spikes with individual buff-peach flowers emerging along the stem.

Ideal Conditions:

Prefers full sun, or partial shade with free-draining soil or compost.

Possible Situation:

The height of this variety instantly lends itself for use in the border, but can be used as a container plant for the patio.

Resilience:

Hardy

Habit:

Upright

Height x Spread / Trail:

130 x 30 cm

Features:

Attracts Wildlife

Typical Season:

Summer

Flower Colour:

orange

Foliage Colour:

green

Flowering Time:

May - July

Planting Recommendations:

Bed/Border

Raised Bed

Container

Prefers:

Full Sun

Part Sun

Temperature Tolerance:

A hardy plant which should survive normal winter conditions outside, especially if protected from the hardest frosts.

Plant Care:

Provide container plants with a mild fertiliser only.

Cultural Information

Family:

SCROPHULARIACEAE

Genus:

Verbascum

Cultivar:

Helen Johnson

Category:

Hardy Perennials

Recommended Pot Sizes:

11cm

1Ltr

3Ltr+

Pot Spacing:

Leave enough room so that foliage does not overlap within crop time.

Typical time required from pot to sale:

24 weeks over Winter

16 weeks in Spring / Summer

Based on producing a finished pot size of 1L for plug products and 2L for liner products. (*)

Growing Media / Irrigation / Water Capacity:

Free draining - keep evenly moist

Feeding / Fertilser
(during crop time):

NPK balanced feeding

Feeding Frequency:

Requires normal/regular feeding (Standard EC)

Recommended pH:

Standard 5.0 to 5.5

Growth Regulation PGR:

Due to the current approval situation, please contact your PGR provider

Temperature During Production:

Cool crop 4 - 12°C

Temperature During Transport:

12-16°C

Availability

Available for Delivery:

January - November

Recommended Sales Window:

February - November

Forecast Availability:

Wk/Yr:09/2529/25
Qty:526

Please note: this forecasted availability is a guide only. Quantities can be increased or produced earlier on request.

P&D Susceptibility

Common Pests:

Aphid

Thrip

Whitefly

Common Diseases:

Botrytis

Powdery Mildew

Other Info:

Can sometimes be susceptible to Ramularia

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Additional Notes (*):

All information provided is based on producing a default finished pot size of 1L for our plug products, and 2L for 7cm and 9cm liner products. For alternative pot sizes please adjust cultural notes accordingly.

Finishing times - Based on average estimated climatic and environmental conditions, and are for guidance purposes only.

Temperature – These conditions assume a protected ornamental growing environment. Recommended growing is generally above 5°C.

Feeding – Does not specify controlled release or liquid fertiliser application. This choice will depend on your conditions, requirements and preferences – please contact your fertiliser consultant for suitable products to meet your requirements.

Growing media and pH – Is shown for guidance purposes only - please contact your growing media consultant for suitable growing media to meet your requirements.



Disclaimer

This information is for guidance purposes only and is based upon our own growing environment and experience during trials. It is wise to use your own knowledge about your growing conditions and local environment in order to make informed cultural decisions.