Is It a Sucker? Identifying Rootstock vs. Variety Growth

Cane emerging at soil level (one ½" below): red stem, similar leaves, growing straight up, softer cane. Sucker or keeper?

The Graft Union Test

• Above graft union (bulge where branches meet roots): True variety.
• Below graft union or from root system: Rootstock (wild type).

Action

Visit local garden center with a sample. They'll ID instantly and sell you a rose care book. Best $10 you'll spend.