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Propagation growers need to be able to consistently deliver uniform, healthy and strong seedlings – and they don’t have long to do so. With many propagation cycles lasting just four to seven weeks, specialists like Ed Thoren at Roelands Plant Farms face constant pressure to optimize every aspect of plant development.
"The plants we're working with – they aren't ours," explains Thoren, head grower at the 24-acre greenhouse facility in Lambton Shores, Ont. "We're really like their babysitters, giving them what they need so that they're prepared for the next phase of life."
This variability in client need has pushed Thoren and his team to seek more sophisticated growing methods, particularly when it comes to lighting technology. Thoren and his team installed advanced dynamic LED lighting fixtures from Sollum Technologies in the spring of 2025 in a two-acre area of their facility, where they have seedlings in plug trays at high density. Thoren aims to use Sollum’s multi-spectrum lighting to influence the morphology of their plants and, in the process, make the entire grafting process much more seamless.
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