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When to Plant Larkspur in Mississippi

Larkspur (Consolida ajacis) is a cool-season annual that produces tall, delicate spires of blue, purple, pink, and white flowers reminiscent of its perennial cousin, delphinium. Direct-sown into cold soil or fall-sown in mild-winter climates, it blooms in spring before going to seed as summer heat arrives. An excellent cut flower and cottage-garden staple.

Mississippi spans USDA hardiness zones 7b, 8a, 8b, 9a (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.

Find Your County

Click your county for exact Larkspur planting dates based on your local frost dates.

Larkspur Planting Calendar for Mississippi

Zone 7b ~235 day growing season · Full guide →

Last frost: March 18 · First frost: November 8 · 235 day season

Activity When Date Range
Direct Sow February 18 Feb 18 – Mar 11
Bloom April 29 Apr 29 – Jul 22
Fall Sowing August 30 Aug 30 – Sep 13
Zone 8a ~255 day growing season · Full guide →

Last frost: March 8 · First frost: November 18 · 255 day season

Activity When Date Range
Direct Sow February 8 Feb 8 – Mar 1
Bloom April 19 Apr 19 – Jul 26
Fall Sowing September 9 Sep 9 – Sep 23
Zone 8b ~276 day growing season · Full guide →

Last frost: February 25 · First frost: November 28 · 276 day season

Activity When Date Range
Bloom November 28 Nov 28 – Mar 20
Fall Sowing September 19 Sep 19 – Oct 3
Zone 9a ~303 day growing season · Full guide →

Last frost: February 10 · First frost: December 10 · 303 day season

Activity When Date Range
Bloom December 10 Dec 10 – Apr 1
Fall Sowing October 1 Oct 1 – Oct 15

Growing Tips for Mississippi

Larkspur does not transplant well — direct-sow only. In cold climates (zones 2–6), sow directly in early spring as soon as soil can be worked, 4–6 weeks before last frost; cold soil improves germination. In zones 7–10, fall-sow 8–10 weeks before first frost for spring bloom. Press seeds lightly into soil; they need darkness to germinate — cover with 1/8–1/4 inch of soil. Thin to 6–12 inches to prevent powdery mildew. Allow seed pods to mature and self-sow for naturalized colonies. All parts are toxic if ingested.

Frequently Asked Questions

When should I plant Larkspur in Mississippi?

Planting dates for Larkspur in Mississippi depend on your USDA zone. Mississippi spans zones 7b, 8a, 8b, 9a. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Mississippi for planting?

Mississippi contains USDA hardiness zones 7b, 8a, 8b, 9a. Your specific zone depends on your location within the state — northern and higher-elevation areas are in colder zones, while southern and coastal areas are warmer.

Data sources: USDA Plant Hardiness Zone Map (2023), NOAA 30-Year Climate Normals, University Cooperative Extension planting guides. Last updated: June 2026.