美国采购需求：沙漠玫瑰，其他盆景植物

I'm interested in purchasing 50 adenium obesum plants with roots included, and I'd like to know the pricing for these. Additionally, please let me know if you provide shipping to France and what the estimated delivery time would be. It's important for me to ensure that the plants are sent with a phytosanitary certificate, as this is essential for their importation. Could you please provide detailed information about the care and packaging of the plants during transit? Also, if there are any discounts available for larger orders or bulk purchases, I would love to hear about those options as well. Looking forward to your prompt response!