Growing sweet alyssum in zone 8b

(Zone 8b = an average winter low of 15°F to 20°F.)

In USDA zone 8b, the typical last spring frost is March 17 and the first fall frost is November 14. Here is when to plant sweet alyssum against those dates.

Start seeds indoorsFebruary 3 to February 10

Transplant outdoorsMarch 10 to March 17

Direct sow outdoorsFebruary 17 to March 3

These are zone 8b averages

Computed from 3,378 ZIP codes in zone 8b. Your town's frost dates vary; enter your ZIP for dates built on your nearest weather station.

Get my exact dates

USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service / Oregon State University PRISM Group. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020. Planting windows for sweet alyssum from NC State Extension (North Carolina Extension Gardener Plant Toolbox). Zone dates are medians; local conditions vary.