Dr. Deno’s books are available as a free download – see the above menu called Free Books for details. Roses need friends or companion plants around them for various reasons including pest and disease control, longer season of interest and aesthetics. Cover pots with a clear plastic bag and place in a cool but bright place. Push the seed 1.5cm into the compost and water in. My go-to sources for germination information on all types of seed are Dr. Deno’s Seed Starting Books (Deno), and Ontario Rock Garden And Hardy Plant Society web site’s Germination Guide (ORGS).). Here are some others to consider: ‘Nelly Moser’—Pinkish light mauve flowers with deep lilac stripes. 84-168 x 36 (210-420 x 90) Twiner. Very eye-catching. What is the best clematis for shade? 0345 092 0283. Growing Clematis From Seed – Current Information. A native of Portugal and Western Spain, it has the most dainty little bluey-white nodding bell-shaped flowers. This 'wild' clematis is worthy of space in our gardens. Sow sunflower seeds into individual pots of peat-free, multi-purpose compost in April. Purple veined White . July, August, September . Among the shade-tolerant types are the alpine clematis, Clematis alpina, and sweet autumn clematis, Clematis paniculata (terniflora). Sow one seed per 7.5cm pot. Clematis 'Venosa Violacea' Group 3. Thrives in shade. For orders: Mon-Sat 8am-10pm, Sun 9am-10pm For customer services: Mon-Fri 1pm-5pm Below are some basic rules to follow when