Growing Innovations
Campanula glomerata 'Superba'

Campanula glomerata 'Superba'

Consumer Information

Alternative Names:

comm. Clustered Bellflower

Narrative Description:

From a low growing mass of strappy green leaves, upright stems appear in early summer. These bear large, impressive clusters of rich royal blue bell-shaped flowers.

Ideal Conditions:

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

Possible Situation:

Make an excellent mid border plant or can be used in a container at least for the first year.

Resilience:

Hardy

Habit:

Clump Forming

Height x Spread / Trail:

50 x 30 cm

Features:

Attracts Wildlife

Typical Season:

Summer

Flower Colour:

blue

Foliage Colour:

green

Flowering Time:

June - August

Planting Recommendations:

Bed/Border

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:

Cut back hard after flowering to maintain a low compact mound.

Cultural Information

Family:

CAMPANULACEAE

Genus:

Campanula

Species:

glomerata

Cultivar:

Superba

Alternative Names:

comm. Clustered Bellflower

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:

0 weeks over Winter

12 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:

February - June

Recommended Sales Window:

June - August

Forecast Availability:

Wk/Yr:13/2411/25
Qty:3945

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

P&D Susceptibility

Common Pests:

Common Diseases:

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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.