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When to Plant Vinca (Annual) in Minnesota

Annual vinca (Catharanthus roseus), also called Madagascar periwinkle, is one of the most heat- and drought-tolerant bedding plants available. Glossy foliage stays attractive all season while cheerful pinwheel blooms continue without deadheading. A top performer in hot, humid Southern summers where impatiens and begonias struggle. Self-cleaning; requires little maintenance once established.

Minnesota spans USDA hardiness zones 3b, 4a, 4b, 5a (with planting data available), so planting dates vary by your location within the state. Click your zone below for the most accurate dates.

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Find Your County

Click your county for exact Vinca (Annual) planting dates based on your local frost dates.

Vinca (Annual) Planting Calendar for Minnesota

Zone 3b ~135 day growing season · Full guide →

Last frost: May 10 · First frost: September 22 · 135 day season

Activity When Date Range
Start Indoors February 22 Feb 22 – Mar 8
Transplant Outdoors May 24 May 24 – Jun 7
Bloom August 2 Aug 2 – Sep 27
Zone 4a ~145 day growing season · Full guide →

Last frost: May 6 · First frost: September 28 · 145 day season

Activity When Date Range
Start Indoors February 18 Feb 18 – Mar 4
Transplant Outdoors May 20 May 20 – Jun 3
Bloom July 29 Jul 29 – Sep 30
Zone 4b ~155 day growing season · Full guide →

Last frost: May 1 · First frost: October 3 · 155 day season

Activity When Date Range
Start Indoors February 13 Feb 13 – Feb 27
Transplant Outdoors May 15 May 15 – May 29
Bloom July 24 Jul 24 – Oct 2
Zone 5a ~166 day growing season · Full guide →

Last frost: April 25 · First frost: October 8 · 166 day season

Activity When Date Range
Start Indoors February 7 Feb 7 – Feb 21
Transplant Outdoors May 9 May 9 – May 23
Bloom July 18 Jul 18 – Oct 3

Growing Tips for Minnesota

Start seeds indoors 10–12 weeks before last frost — germination requires warm soil (75–80°F) and darkness. Do not cover seeds deeply; they need just a light dusting. Direct sowing is rarely practiced due to slow seedling establishment. Transplant after soil warms and frost danger has passed. Excellent drought tolerance once established; avoid overwatering. Performs best in well-drained beds or containers in full sun.

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Frequently Asked Questions

When should I plant Vinca (Annual) in Minnesota?

Planting dates for Vinca (Annual) in Minnesota depend on your USDA zone. Minnesota spans zones 3b, 4a, 4b, 5a. Check the planting calendar above for your specific zone's frost dates and planting windows.

What zone is Minnesota for planting?

Minnesota contains USDA hardiness zones 3b, 4a, 4b, 5a. 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.