15 июл. 2024 г. · It takes air and soil of more than 70°F to germinate well, so wait until spring to plant zinnia seeds.

28 окт. 2024 г. · Zinnias are sensitive to frost, so do not seed until the last frost has passed in your area. See your local frost dates. Zinnias will grow in a ...

In cooler climates, start seeds indoors 4 to 6 weeks before your area's average last-frost date. Harden off the plants by vacationing trays outside for a few ...

Plant zinnias in late spring, after the last frost has passed and the soil is warm. Start seeds indoors in individual containers, set out purchased plants, or ...

23 авг. 2024 г. · When to start inside: 4 to 6 weeks before your average last frost date. Transplant outdoors after last frost. Zinnias do not benefit from being ...

Learn how to grow zinnia with the RHS expert guide on choosing, planting, feeding, pruning and propagating plants.

5 мар. 2019 г. · Don't worry if you don't manage to sow them indoors by April – zinnias can be sown outdoors in May and June. Learn how to sow zinnia seeds ...

8 янв. 2021 г. · Zinnias don't like root disturbance, so direct sow the seeds in May-June, as soon as the nights are warm. However, they can be planted in gutters or Jiffy ...

3 февр. 2023 г. · Seeds are typically started indoors in early spring or direct sown in garden beds from late spring through mid-summer.