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The breeding pipelines from Sande and GSBGwill be combined and housed the state-of-the-art breeding

facilities of former Sande. In combination with Dümmen Orange’s modern breeding capabilities, this will

result in a superior offering to customers worldwide and bolster innovations, especially in the introduc-

tion of disease resistance and productivity traits.


We have invested in state-of-the-art storage facilities

for tubers with ozone treatment and optimized

conditions to improve tuber quality. In addition, we

control the quality

of the tubers before they are sent to customers.


The Netherlands is already the largest pro-

ducer of calla tubers in the world. Dutch calla

tubers have been used by customers all over the

world for both cut and pot use with year-round

planting schedule. The Netherlands offers the

perfect growing condition for calla tubers with

sandy loam soils and stable climate / tempera-

ture year-round. Our aim is to supply the

healthiest tubers from our own production as

well as the best growers in Holland.

is built on a strong history of

more than 200 years of experience

and knowledge (Geerlings was

founded in 1892, GSBG in 1901

and Sande in 1980).

This experience, heritage and passion

for customers and flower bulbs

combined with the commitment to

invest in new technologies make us

your confident partner to trust.

The new

business creates the

global leader in the Calla breeding:

Geerlings’ experience in cultivation

and processing of different kinds of

Calla tubers, combined with the

established portfolio of products

from GSBG & Sande, and the leading

breeding programs from Sande &

GSBG (with genetics from Europe,

California and New Zealand).

Look at

for more inspiration