Growing sweet alyssum in zone 7a

(Zone 7a = an average winter low of 0°F to 5°F.)

In USDA zone 7a, the typical last spring frost is April 16 and the first fall frost is October 25. Here is when to plant sweet alyssum against those dates.

Start seeds indoorsMarch 5 to March 12

Transplant outdoorsApril 9 to April 16

Direct sow outdoorsMarch 19 to April 2

These are zone 7a averages

Computed from 4,863 ZIP codes in zone 7a. 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.