Roselle (Rosa de Jamaica) (Hibiscus sabdariffa) - yellow flowers, illustrated plant cardIllustration

Roselle (Rosa de Jamaica)

Hibiscus sabdariffa

Also comes in red.

Roselle (Rosa de Jamaica) blooms from August through October.

Bloom calendar
Bloom time
Aug–Oct
not yet checked
Hardiness
Zones 9–13
not yet checked
Sun
Full sun
not yet checked
Water
Moderate water
not yet checked
Mature size
6.5 ft × 3.5 ft
not yet checked
Type
Annual
house classification

Months here are Northern Hemisphere months; in the Southern Hemisphere, shift them by six months.

Growing Roselle (Rosa de Jamaica)

Plant it in full sun. It prefers moderate water. It is hardy in USDA zones 9–13. Expect it to reach about 6.5 ft tall and 3.5 ft wide at maturity, in roughly 1 year (not yet checked).

No toxicity note is on file for Roselle (Rosa de Jamaica). That is not a clearance: check its safety for people and pets before planting.

Verification
What this means

Generated by an earlier AI feature of BloomsEye and not yet checked against outside sources, its scientific name included, so treat every fact above as a starting point. An audit keeps its values consistent with the rest of the library, which is not the same as being right. The source-by-source check is working through the whole library in the open, and a checked plant says so in this row.

When to plant Roselle (Rosa de Jamaica)

Wait until all danger of frost has passed, then plant out Roselle (Rosa de Jamaica) into warm soil; in most zones that means late spring. Planted then, it flowers from August to October.

Month-by-month timing for your zone is on the planting calendar; if you garden near zone 9, the middle of this plant's hardy range, start with zone 9 in February. Derived from the plant's category, zones and bloom months plus typical zone frost dates, not checked separately.

How big does Roselle (Rosa de Jamaica) get?

Illustration of Roselle (Rosa de Jamaica) drawn to scale beside an adult6.5 fttall5 ft 7 inan adult3.5 ftwide
About 6.5 ft tall and 3.5 ft wide at maturity: a little taller than an adult.

See Roselle (Rosa de Jamaica) in a garden plan: the planner shows it in 3D beside everything else you add, growing toward this size over the years.

How far apart to plant Roselle (Rosa de Jamaica)

Derived from the mature spread above by a fixed rule, not checked separately: spacing is the spread, center to center.

Space Roselle (Rosa de Jamaica) about 3.5 ft apart, center to center, so each plant has room to reach its full width.

Plant them
3.5 ft apart
Per 10 sq ft
one needs about 12 sq ft
4 by 8 ft bed
about 2

Add Roselle (Rosa de Jamaica) to a garden plan and the planner draws it at its full width, so you see the spacing before you buy.

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