Growing Sweet Alyssum in Zone 9
When to plant and harvest sweet alyssum in Zone 9— based on your zone's frost dates.
Zone 9 sits comfortably within sweet alyssum's best range (Zones 2–11), so it grows well here on a standard schedule.
Sweet Alyssum planting calendar for Zone 9
These months are derived from Zone 9's frost dates — last frost around Late January – late February, first frost around Early December – early January.
Start indoors
—
Sow outdoors
—
Transplant
November
Harvest
—
Free planting calendar
Put sweet alyssum on your own planting calendar
A month-by-month Zone 9 chart with sweet alyssum already on it — add the rest of your garden, then print it or save it as a PDF.
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Sweet Alyssum care at a glance
- Sunlight
- Full sun to partial shade; afternoon shade in hot climates extends the bloom season
- Water
- Moderate and consistent when young; fairly drought-tolerant once established — overwatering is more damaging than under-watering
- Spacing
- 6–8 in apart
- Days to maturity
- 40–60 days from sowing to first bloom
- Best zones
- 2–11 (cool-season annual; self-sows in many zones)
Growing sweet alyssum in Zone 9: FAQs
Can you grow sweet alyssum in Zone 9?＋
Zone 9 sits comfortably within sweet alyssum's best range (Zones 2–11), so it grows well here on a standard schedule.
When should I plant sweet alyssum in Zone 9?＋
Sweet Alyssum isn't a typical field crop for Zone 9's calendar. Time any planting around the zone's last frost (Late January – late February) and first frost (Early December – early January), and see the full Sweet Alyssum guide for details.
When to harvest sweet alyssum in Zone 9?＋
Harvest timing depends on your planting date and variety — sweet alyssum typically matures in 40–60 days from sowing to first bloom. See the full guide for harvest cues.
Full Sweet Alyssum guide →
Complete care, problems, companions, and harvest tips.
Zone 9 overview →
Frost dates, climate, and everything to grow here.
October in Zone 9 →
What to sow, transplant, and harvest this month.