Viola

Use our zone-based planting guide to know when to plant viola.

Plant name Zone Start seeds indoors (spring/fall) Start seeds outdoors (spring/fall) Plant seedlings/transplants outdoors (spring/fall) Plant spacing # plants per person
Viola 3a Feb. 15-March 1 Not recommended April 15-May 1 6-8 inches n/a
Viola 3b Feb. 15-March 1 Not recommended April 15-May 1 6-8 inches n/a
Viola 4a Feb. 15-March 1 Not recommended April 15-May 1 6-8 inches n/a
Viola 4b Feb. 15-March 1 Not recommended April 15-May 1 6-8 inches n/a
Viola 5a Jan. 15-Feb. 1 Not recommended March 15-April 1 6-8 inches n/a
Viola 5b Jan. 15-Feb. 1 Not recommended March 15-April 1 6-8 inches n/a
Viola 6a Jan. 15-Feb. 1 Not recommended March 15-April 1 6-8 inches n/a
Viola 6b Jan. 15-Feb. 1 Not recommended March 15-April 1 6-8 inches n/a
Viola 7a Jan. 15-Feb. 1 Not recommended March 15-April 1 6-8 inches n/a
Viola 7b Jan. 15-Feb. 1 Not recommended March 15-April 1 6-8 inches n/a
Viola 8a Dec. 15-Jan. 1 Not recommended Feb. 15-May 15; Aug. 1-Oct. 30 6-8 inches n/a
Viola 8b Dec. 15-Jan. 1 Not recommended Feb. 15-May 15; Aug. 1-Oct. 30 6-8 inches n/a
Viola 9a 10-12 weeks before planting outside Not recommended Oct. 1-Nov. 30 6-8 inches n/a
Viola 9b 10-12 weeks before planting outside Not recommended Oct. 1-Nov. 30 6-8 inches n/a
Viola 10a 10-12 weeks before planting outside Not recommended Oct. 15-Dec. 15 6-8 inches n/a
Viola 10b 10-12 weeks before planting outside Not recommended Oct. 15-Dec. 15 6-8 inches n/a
Viola 11a 10-12 weeks before planting outside Not recommended Oct. 15-Dec. 15 6-8 inches n/a
Viola 11b 10-12 weeks before planting outside Not recommended Oct. 15-Dec. 15 6-8 inches n/a

* Cool-weather annual; typically planted in early spring or fall. Can tolerate some frost. Most commonly planted as starter plants. Plant when soil can be worked in spring or start seeds 10-12 weeks before the average last frost date.