Calendula 'Triangle Flashback'

Calendula officinalis

How to grow Calendula 'Triangle Flashback'

  • Full Sun

  • Medium

Plant in a location that enjoys full sun and remember to water moderately. Keep in mind when planting that Triangle Flashback is thought of as half hardy, so it will need cloching or fleece protection when the temperature dips. Triangle Flashback needs a loamy soil with a ph of 6.1 to 7.8 (weakly acidic soil to weakly alkaline soil).

Growing Triangle Flashback from seed

Look to ensure a distance 7.8 inches (20.0 cm) between seeds when sowing - bury at a depth of at least 0.2 inches (0.5 cm) deep. Soil temperature should be kept higher than 10°C / 50°F to ensure good germination.

By our calculations, you should look at sowing Triangle Flashback about 35 days before your last frost date.

Transplanting Triangle Flashback

Ensure that temperatures are mild and all chance of frost has passed before planting out, as Triangle Flashback is a half hardy plant.

Harvesting Triangle Flashback