About us

Since 1992 the Hibiscus Working Group – four renowned Hibiscus growers and the breeding company Agriom – has been jointly developing Sunny Cities varieties. The current range comprises around twenty varieties, all of which branch well, produce a lot of buds per branch, flower lavishly and for a long time, and have good keeping quality.

Our most recent selection programme focuses on the development of varieties that can be grown under more southern climate conditions for sale on the South European market. In this context we set up trial fields at the nursery of our group’s member Piante Keicher in Latina in Italy. Our efforts are resulting in a new line of Sunny Cities varieties, the first of which are Amalfi, Funchal, Lucca, Sabaudia and Sorrento.

Besides this climate-specific breeding work the Hibiscus Working Group makes constant efforts to develop varieties for normal, small and large pot sizes, and also standard Hibiscus trees.

Participating nurseries

The Hibiscus Working Group comprises four renowned breeders supported by Agriom.

Peeters Potplanten

Contact: Arjan Peeters
Website: www.peeterspotplanten.nl

Koolhaas Kwekerijen

Contact: Martin Hoogenboom (Vireõ)
Website: www.koolhaaskwekerijen.nl

Kwekerij Groenhof

Contact: Marco van Koppen
Website: www.kwekerijgroenhof.nl

Piante Keicher

Contact: Dieter Keicher & Daniel Keicher
Website: www.piantekeicher.com


Support in breeding and selection
Contact: Jan ten Brinke
Website: www.agriom.nl

Sunny Cities Hibiscus


Some of the specific characteristics of the Sunny Cities Hibiscus:

  • Little risk of bud drop
  • Perpetual flowering
  • Excellent branching
  • Good keeping quality
  • Lavish flowering

Grower-friendly varieties

Hibiscus plants need a lot of water, so they must be planted in soil with a high moisture-retention capacity whose structure won’t be adversely affected by large doses of water and will retain a sufficiently high air content. The heating temperature may be reduced for short periods of time. The pot temperature should be more or less the same as the heating temperature.


Hibiscus plants tolerate large amounts of light and also enjoy direct sunlight. Screening may be required only to adjust climate conditions. Fertilisation should be based on accurate measurements of the pH and EC during irrigation and should include extra doses of specific trace elements. Hibiscus plants may need extra growth regulation during their development, depending on the climate conditions.

Our varieties

All our varieties are protected by Plant Breeders’ Rights.
Click the photo to view details.

Sales and support

For commercial inquiries and support:

International contacts and
Technical support

Jan ten Brinke
+31 6 5582 6262

Sales in

Dieter Keicher
+39 (0)773 208220

Sales in

Daniel Keicher
+39 (0)773 208220


  • Coöp. Hibiscus Werkgroep
  • Achterweg 58a
    1424 PR De Kwakel
    The Netherlands
  • info@hibiscus-sunnycities.nl
  • +31 (0)297-344078

A4 Amsterdam – Den Haag: take the Aalsmeer (N201) exit.
Take the N201 towards Aalsmeer, follow the ring road around Aalsmeer, go through the Waterwolftunnel, and then follow the N201 to its intersection with the N231 (Legmeerdijk). Turn right towards Kudelstaart / FloraHolland. Follow the N231 for about 4.5 km until you reach a location 100 m after the BP petrol station. Turn right and then left onto: Achterweg. After 1 km on the right hand.

A2 Utrecht – Amsterdam: take the Vinkeveen (N201) exit.
Follow the N201 towards Vinkeveen past Mijdrecht and Uithoorn, turn left direction Kudelstaart, FloraHolland onto the N196. Follow the N231 for about 4.5 km until you reach a location 100 m after the BP petrol station. Turn right and then left onto: Achterweg. After 1 km on the right hand side.