Black-Eyed Susan Vine

Place it at the base of a trellis, narrow fence panel, mailbox post, or obelisk where stems can immediately find their way upward. Keep the support close to the planting point and leave the front of the bed open for lower plants and access; loose stems can otherwise spill across nearby planting areas. It also works in a hanging basket, where the same growth habit can cascade over the rim instead of climbing. Avoid relying on it as a groundcover in a tightly planted bed, where the twining stems are harder to manage.^[1][2]

Set plants 2 feet apart, center to center. That interval is closer than the eventual 3-foot spread, allowing neighboring plants to knit into a continuous cover on a shared support; give a single plant its own 3-foot-wide zone when you want the framework to remain visible. Reserve vertical clearance for an 8-foot climb, and position it behind low edging or in a container where stems will not obstruct a path.

Use a full-sun position with soil that drains well, and keep moisture regular through the growing season. A site that bakes dry or stays wet can make the planting less dependable, so place in-ground plants where irrigation reaches the root zone without creating a soggy pocket. For baskets and patio containers, use a free-draining potting mix and monitor moisture more closely.^[1][2][3]

This annual occupies its allotted support for one growing season, flowering from summer into fall. Treat it as a flexible summer layer: use it to cover a bare trellis, arch, or fence while permanent woody climbers are still small, then clear the support after frost ends the display. Deadheading can help keep flowers coming through the season.^[2][3]