Begonia rhizomes make more plants You Can Grow That!
Soak entire pot contents Begonias are mostly tender perennials in zone 7 with only a few exceptions. They are one example of plants that we keep from year to year, dividing in the fall, growing in the shed over the winter and putting back outside in the spring. There are different types of begonias according to Gary Turner, including cane, shrub, thick stem semperflorens, rhizomatous, tuberous, trailing/scandent. Cane-types can be rooted in water. Begonia rhyzome growing over pot Most have shallow roots and prefer shallow containers where they can trail out. We use bagged soil-less potting soil, remixed with extra perlite for ours. A few of ours are so crowded that their rhizomes are crawling over the sides of their containers. We keep ours outside in flower beds, under trees, all summer in pots and our summers are 100 and above with pretty high humidity. Gently separate rhyzome clumps At the link above, Turner says: "The planting medium mix should be sl...