Ask the Expert

At Gro-Expert, we pride ourselves on our deep technical knowledge of plants and plant nutrition. Our resident agronomist, Mark Horner, is available to answer any questions you may have about using our products or caring for the plants you grow.

Whether you’re looking to improve plant health, boost yields, or achieve a greener, healthier lawn, Mark is happy to share practical advice and proven tips to help you get the very best results.

Mark Horner

Mark is a former tomato and tropical plant grower who has worked all over the world advising on crop nutrition. With over 25 years as an agronomist, he is an expert in the growing of tomatoes, berry plants, tropical fruits and plants.