Tissue Culture Young Plant Supplier. Top products: Agave Liners, Farfugium Liners, Nandina Liners, Yucca Liners, Tissue Culture Young Plants. MGN Liners, a division of Magnolia Gardens Nursery, is a specialized horticultural operation focused on the mass propagation of young plants via tissue culture and traditional liner production. Operating since 1978, the company leverages an advanced laboratory and greenhouse infrastructure in Texas to produce over 13.5 million plants annually. They serve a professional B2B client base, including commercial growers, plant breeders, and brokers. Their core service offerings include contract propagation for difficult-to-reproduce species, stock improvement (clean stock services), and the development of proprietary propagation protocols. By focusing on high-quality, disease-free young plant material, MGN Liners acts as a foundational supplier in the horticultural supply chain. Their catalog features a variety of ornamental and drought-tolerant species, such as Agave, Farfugium, Nandina, and Yucca, aimed at providing professional nurseries with reliable, high-performance starting stock for final container production.